Today's Message Index:
----------------------
1. 04:14 AM - Re: Re: Oil Coolers on Ebay (Phil Sisson, Litchfield Aerobatic Club)
2. 05:18 AM - Re: Re: Oil Coolers on Ebay (Charlie Kuss)
3. 05:43 AM - Auto Pilots (Jerry Isler)
4. 06:11 AM - LASAR/elecr ign (Charles Heathco)
5. 06:44 AM - The Mother of all giant scale B-52's (Rick Galati)
6. 06:55 AM - Update... Blue Mountain Install... (Bill VonDane)
7. 07:07 AM - Odyssey Battery Installation Kit (Alexander, Don)
8. 07:24 AM - Re: LASAR/elecr ign (Robert E. Lynch)
9. 07:25 AM - Re: Auto Pilots (Sam Buchanan)
10. 07:25 AM - Re: Odyssey Battery Installation Kit (Bill VonDane)
11. 07:26 AM - Re: Auto Pilots (Robert E. Lynch)
12. 07:28 AM - links to Super 8? (Vincent Osburn)
13. 07:38 AM - Re: Update... Blue Mountain Install... (RV Builder (Michael Sausen))
14. 07:38 AM - Re: Auto Pilots (RV Builder (Michael Sausen))
15. 07:45 AM - Spinners (Ernie)
16. 08:00 AM - Re: Update... Blue Mountain Install... (Bill VonDane)
17. 08:28 AM - Re: LASAR/elecr ign (Walter Tondu)
18. 08:44 AM - Re: LASAR/elecr ign (Randy Lervold)
19. 09:35 AM - Re: Prop replacement, question for Das Fed, was: ()
20. 10:09 AM - Re: Prop replacement, question for Das Fed, was: (John Spicer)
21. 10:11 AM - Re: LASAR/elecr ign (Dale Ensing)
22. 10:28 AM - Re: Prop replacement, question for Das Fed, was: (John Spicer)
23. 10:47 AM - Re: Auto Pilots (Douglas Weiler)
24. 11:37 AM - Re: Prop replacement, question for Das Fed, was: (Dave Bristol)
25. 11:41 AM - Re: Auto Pilots (Hopperdhh@aol.com)
26. 11:42 AM - POP rivet static port (George Inman)
27. 11:51 AM - Re: POP rivet static port (Hopperdhh@aol.com)
28. 12:02 PM - Re: Auto Pilots (Phil Sisson, Litchfield Aerobatic Club)
29. 12:24 PM - Re: Auto Pilots (Sam Buchanan)
30. 12:52 PM - Re: POP rivet static port (Walter Tondu)
31. 12:55 PM - Re: POP rivet static port (Walter Tondu)
32. 01:08 PM - Re: Auto Pilots (Stein Bruch)
33. 01:16 PM - A/P and servos (Larry James)
34. 01:34 PM - Re: Auto Pilots (Mickey Coggins)
35. 01:38 PM - Re: A/P and servos (Bill VonDane)
36. 01:38 PM - Re: Auto Pilots (Bill VonDane)
37. 01:38 PM - Electric or manual trim? (Jim Peoples)
38. 01:46 PM - Re: LASAR/elecr ign (Randy Lervold)
39. 02:09 PM - Re: Prop replacement, question for Das Fed, was: (cgalley)
40. 02:09 PM - Re: A/P and servos (Sam Buchanan)
41. 02:20 PM - Re: Prop replacement, question for Das Fed, was: (Sam Buchanan)
42. 02:33 PM - Re: Odyssey Battery Installation Kit (Jim Cimino)
43. 02:44 PM - Electric or Manual Trim ? (Jim Peoples)
44. 02:48 PM - Re: Auto Pilots (John)
45. 03:08 PM - Re: Auto Pilots (Stein Bruch)
46. 03:16 PM - Re: Auto Pilots (Dave Bristol)
47. 03:35 PM - Re: Auto Pilots (Dave Bristol)
48. 04:04 PM - Re: links to Super 8? (RGray67968@aol.com)
49. 04:13 PM - Re: Auto Pilots (linn walters)
50. 04:25 PM - Re: Prop replacement, question for Das Fed, was: (linn walters)
51. 04:36 PM - Re: Electric or Manual Trim ? (Rob Prior (rv7))
52. 04:56 PM - Re: The Mother of all giant scale B-52's ()
53. 05:29 PM - Re: Prop replacement, question for Das Fed, was: (Charlie England)
54. 05:37 PM - Roll your own auto pilot? Re: Auto Pilots (Ed Anderson)
55. 05:56 PM - Re: Auto Pilots (Jim Jewell)
56. 06:14 PM - Re: LASAR/elecr ign (Alex Peterson)
57. 06:45 PM - Re: Auto Pilots (Dave Bristol)
58. 08:34 PM - Re: links to Super 8? (WFACT01@aol.com)
59. 10:13 PM - Re: Auto Pilots (Nick Nafsinger)
60. 10:16 PM - Looking for FWF photos. (DEAN PSIROPOULOS)
Message 1
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| Subject: | Re: Oil Coolers on Ebay |
--> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club" <sisson@consolidated.net>
"Konrad L. Werner" wrote:
> --> RV-List message posted by: "Konrad L. Werner" <klwerner@comcast.net>
>
> Wrong statement / Different Cooler manufacturer!
>
> Positech had problems earlier, but Aero Classic had none that I know off? But
then I am very far from knowing everything. Perhaps I missed any discussions
about problems on these?
>
> Do not archive
>
I sent my Positech in and got a replacement. neither the old one or the new one
look like these. The guy I talked with at Positech said they would melt them
all down and make new
ones, he talked like it was no big deal to do that.
If one of them did make it back to the field, it would not be a problem other than
the exchange of heat was not quite up to that of a Stewart Warner. Many are
still in use that were
not sent in and they seem to be doing just fine, last I heard. I thought the Positech
that I sent back was a very well constructed cooler. Just an oppinion.
Phil
do not archive
Message 2
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| Subject: | Re: Oil Coolers on Ebay |
--> RV-List message posted by: Charlie Kuss <chaztuna@adelphia.net>
Cy,
You are referring to the early model Positech coolers. AeroClassics never
had this problem. The problematic oil coolers were copies of the current
Stewart Warner design. The AeroClassics are similar to the oil coolers sold
by Niagara & Harrison. Apples to Oranges.
Charlie Kuss
>--> RV-List message posted by: "cgalley" <cgalley@qcbc.org>
>
>There was one brand of oil cooler that didn't work very well and the company
>that made them exchanged them all free.
>
>
>----- Original Message -----
>From: "Jeff Point" <jpoint@mindspring.com>
>To: <rv-list@matronics.com>
>Subject: Re: RV-List: Re: Oil Coolers on Ebay
>
>
> > --> RV-List message posted by: Jeff Point <jpoint@mindspring.com>
> >
> > Care to elaborate on that?
> >
> >>I wondered where all the coolers went that were replaced free.
> >>
> >>
> >>
> >>
> >>
> >
> >
> >
>
>
Message 3
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--> RV-List message posted by: "Jerry Isler" <jlisler@alltel.net>
If you were going to install a wing leveler auto-pilot, which one would you
buy? The obvious choices are Navaid, Trutrak and Trio. I have an RV-4 so
panel space is very limited. In order to install the control head I would
have to remove my turn coordinator so I was thinking it would be nice if the
auto-pilot could also serve in this capacity. Then again, I have a Dynon
D10A so maybe the turn coordinator loss is not that big of a deal. What are
the pros and cons of these systems?
Any testimonials? (There I was........1500', inverted, and running out of
options. When all was but lost, I engaged the auto-pilot ........You know
what I mean).
Jerry Isler
Donalsonville, GA
RV4 N455J (not flying yet)
Message 4
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--> RV-List message posted by: "Charles Heathco" <cheathco@comcast.net>
I have been going thru archives to try to evaluate elecronic ignition. I have an
A&P friend who swears by LASAR, but I have found several posts re problems with
this system, but the posts are not very current. I find hardly any problems
posted re LSI, or E/P-mags. I imagine e-mags are so new that not a lot is known
about them yet. My research has me leaning toward the e/p-mag sys for lower
cost/simplicity. Lead times it seems are out there tho. Any LASAR defenders/happy
users? Charlie Heathco
Message 5
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| Subject: | The Mother of all giant scale B-52's |
--> RV-List message posted by: Rick Galati <rick6a@yahoo.com>
RV related? Well....this RC had the wingspan of an RV-4.
http://www.mcgirt.net/RC/VIDEOS/Giant_B52/
Message 6
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| Subject: | Update... Blue Mountain Install... |
--> RV-List message posted by: Bill VonDane <bill@vondane.com>
I mounted the aileron servo in the wing last night.....and added some more
photos and comments to my web site...
http://www.rv8a.com/panel/panel3/installation.htm
-Bill
Message 7
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| Subject: | Odyssey Battery Installation Kit |
--> RV-List message posted by: "Alexander, Don" <Don.Alexander@astenjohnson.com>
Listers,
I am looking at purchasing an Odyssey 680 and noticed that Van's offers
an installation kit for this battery for around $50. Does anyone have
an idea what would be included in the kit that would make it cost $50?
I'm guessing that it probably has a couple of shims in it.
Don Alexander
RV-8 Electrical and Panel
Message 8
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| Subject: | Re: LASAR/elecr ign |
--> RV-List message posted by: "Robert E. Lynch" <rv6lynch@earthlink.net>
Hi Charley
I have a Laser on both mag, when I build my next RV it to will have Lasers
on it. It is a certified system and best I can tell is no problems and I
start in two blades. Sure makes the guys around jealous.
BobLynch 465hrs RV6
Message 9
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--> RV-List message posted by: Sam Buchanan <sbuc@hiwaay.net>
Jerry Isler wrote:
> --> RV-List message posted by: "Jerry Isler" <jlisler@alltel.net>
>
> If you were going to install a wing leveler auto-pilot, which one would you
> buy? The obvious choices are Navaid, Trutrak and Trio. I have an RV-4 so
> panel space is very limited. In order to install the control head I would
> have to remove my turn coordinator so I was thinking it would be nice if the
> auto-pilot could also serve in this capacity. Then again, I have a Dynon
> D10A so maybe the turn coordinator loss is not that big of a deal. What are
> the pros and cons of these systems?
> Any testimonials? (There I was........1500', inverted, and running out of
> options. When all was but lost, I engaged the auto-pilot ........You know
> what I mean).
Yes, dozens and dozens and dozens.
Go here:
http://www.matronics.com/searching/search.html
Search, "wing leveler" or "autopilot" or any of the above brand names.
About all that can be said about these systems up to this point has been
said and is in the archives.
Not trying to cut off your question, just pointing you to the answers.
Sam Buchanan (RV-6, Navaid and EZ-Pilot.....not at the same time...)
http://thervjournal.com
Message 10
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| Subject: | Re: Odyssey Battery Installation Kit |
--> RV-List message posted by: Bill VonDane <bill@vondane.com>
not sure what you could possible need... You can cut down the existing
battery tray for the odyssey... You may need some different bolts
installing your battery cables...
-Bill
----- Original Message -----
From: "Alexander, Don" <Don.Alexander@astenjohnson.com>
Subject: RV-List: Odyssey Battery Installation Kit
--> RV-List message posted by: "Alexander, Don"
<Don.Alexander@astenjohnson.com>
Listers,
I am looking at purchasing an Odyssey 680 and noticed that Van's offers
an installation kit for this battery for around $50. Does anyone have
an idea what would be included in the kit that would make it cost $50?
I'm guessing that it probably has a couple of shims in it.
Don Alexander
RV-8 Electrical and Panel
Message 11
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--> RV-List message posted by: "Robert E. Lynch" <rv6lynch@earthlink.net>
TRUTRAK TRUTRAK TRUTRAK No further discussions necessary.
Bob
Message 12
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| Subject: | links to Super 8? |
0.00 MIME_BOUND_NEXTPART Spam tool pattern in MIME boundary
--> RV-List message posted by: "Vincent Osburn" <flyby41@earthlink.net>
Hi all,
I'm too poor to afford one but I got three friends agonizing over the F1or
Harmon Rocket or RV-8 decision. I have heard that there is a 540 powered RV-8
option that uses Rocket style gear? Anybody got a links to 540 powered RV-8 sites?
I've only been able to find one. Thank you in advance, Vince in Mojave.
P.S. Hope the question ain't anathema to some of you. I don't
want to hear it.
Vince
flyby41@earthlink.net
Message 13
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| Subject: | Update... Blue Mountain Install... |
--> RV-List message posted by: "RV Builder (Michael Sausen)" <rvbuilder@Sausen.net>
Bill,
Word of advise, if those wire tiedown's are just your run of the mill
Home Depot type sticky backs, they WILL let loose eventually.
Especially in our aircrafts extreme environments.
Michael Sausen
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Bill VonDane
Subject: RV-List: Update... Blue Mountain Install...
--> RV-List message posted by: Bill VonDane <bill@vondane.com>
I mounted the aileron servo in the wing last night.....and added some
more photos and comments to my web site...
http://www.rv8a.com/panel/panel3/installation.htm
-Bill
Message 14
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--> RV-List message posted by: "RV Builder (Michael Sausen)" <rvbuilder@Sausen.net>
I would go with the Pictoral Pilot from TruTrak. It gives you the turn
and bank and also autopilot.
Michael Sausen
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Jerry Isler
Subject: RV-List: Auto Pilots
--> RV-List message posted by: "Jerry Isler" <jlisler@alltel.net>
If you were going to install a wing leveler auto-pilot, which one would
you buy? The obvious choices are Navaid, Trutrak and Trio. I have an
RV-4 so panel space is very limited. In order to install the control
head I would have to remove my turn coordinator so I was thinking it
would be nice if the auto-pilot could also serve in this capacity. Then
again, I have a Dynon D10A so maybe the turn coordinator loss is not
that big of a deal. What are the pros and cons of these systems?
Any testimonials? (There I was........1500', inverted, and running out
of options. When all was but lost, I engaged the auto-pilot ........You
know what I mean).
Jerry Isler
Donalsonville, GA
RV4 N455J (not flying yet)
Message 15
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--> RV-List message posted by: "Ernie" <eamadio@cogeco.ca>
Greg,
Perhaps I should have been clearer on the discription of my situation.My
prop is an older McCauley Mod#2D36C14-A from a 1964 Mooney with an O360 A1A.
The originalspinner and backing plates were aluminum and had cracked and
been repaired several times.
The rear backing plate mounted to the fly wheel/ring gear with bolts on
machined pads about an inch in from the ring gear.The prop hub does not
touch the backing plate at all.In fact the backing plate is completely cut
away except for the flange to bolt it to the fly wheel. The backing plate
looks like a bowl with the centre of the bottom cut out.
I have the Vans' spinner here, and it looks like it might work.My major
concern was whether or not there was enough clearance inside the spinner to
accomodate the McCauley hub since it appears to be rather tall and bulky and
I'd rather know before I cut into the spinner and backing plate.Obviously,
if there isn't enough room after the cutting the pieces will be scrap.
Thanks for the help.
Ernie Amadio
RV-6 #21488
Message 16
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| Subject: | Re: Update... Blue Mountain Install... |
--> RV-List message posted by: Bill VonDane <bill@vondane.com>
Michael... Thanks for the tip...
They are not Home Depot type, and they are epoxies up there...
-Bill
----- Original Message -----
From: "RV Builder (Michael Sausen)" <rvbuilder@sausen.net>
Subject: RE: RV-List: Update... Blue Mountain Install...
--> RV-List message posted by: "RV Builder (Michael Sausen)"
<rvbuilder@Sausen.net>
Bill,
Word of advise, if those wire tiedown's are just your run of the mill
Home Depot type sticky backs, they WILL let loose eventually.
Especially in our aircrafts extreme environments.
Michael Sausen
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Bill VonDane
Subject: RV-List: Update... Blue Mountain Install...
--> RV-List message posted by: Bill VonDane <bill@vondane.com>
I mounted the aileron servo in the wing last night.....and added some
more photos and comments to my web site...
http://www.rv8a.com/panel/panel3/installation.htm
-Bill
Message 17
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| Subject: | Re: LASAR/elecr ign |
--> RV-List message posted by: Walter Tondu <walter@tondu.com>
On 03/10 9:10, Charles Heathco wrote:
> I have been going thru archives to try to evaluate elecronic ignition. I have
an A&P friend who swears by LASAR, but I have found several posts re problems
with this system, but the posts are not very current. I find hardly any problems
posted re LSI, or E/P-mags. I imagine e-mags are so new that not a lot is
known about them yet. My research has me leaning toward the e/p-mag sys for lower
cost/simplicity. Lead times it seems are out there tho. Any LASAR defenders/happy
users? Charlie Heathco
I also went with the LASAR ignition, but I'm not flying yet (almost)
so I can't provide any real-world experience yet. Installation is
easy though.
I can say the Bob K. (aeroelectric.com) is not very fond of them.
There have been many posts on this issue in that forum wherein
Bob describes the reasons why he thinks there may be better
alternatives.
But, I am satisfied with my choice, so far.
--
Walter Tondu
http://www.rv7-a.com
Message 18
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| Subject: | Re: LASAR/elecr ign |
--> RV-List message posted by: "Randy Lervold" <randy@romeolima.com>
> I have been going thru archives to try to evaluate elecronic ignition. I
> have an A&P friend who swears by LASAR, but I have found several posts re
> problems with this system, but the posts are not very current. I find
> hardly any problems posted re LSI, or E/P-mags. I imagine e-mags are so
> new that not a lot is known about them yet. My research has me leaning
> toward the e/p-mag sys for lower cost/simplicity. Lead times it seems are
> out there tho. Any LASAR defenders/happy users? Charlie Heathco
Charlie,
I'm a very happy user. I had it installed on my RV-8 (www.rv-8.com) and also
spec'd it for my RV-3B I'm now building (www.rv-3.com). One thing, if you do
order it be sure and get it WITHOUT the CHT temp sensing circuit, this is a
known problem area. It is required on certified installations but of course
not on experimentals. I have a few comments on both of my web sites about
it.
Randy Lervold
Message 19
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| Subject: | Re: Prop replacement, question for Das Fed, was: |
--> RV-List message posted by: <gmcjetpilot@yahoo.com>
Mike:
You are opening a can of worms :- ) The buyer of an experimental aircraft can only
do routine maintenance, as if it were a Piper or Cessna, as far as I know.
Only the manufacture (builder/repairman) can make major mods, however I assume(?)
an A&P or AI could do it and with the FAA's blessing. Again, as in all these
matters refer to the FISDO of choice for the answer. There is no "type certificate"
configuration for exp a/c, so many changes slip thru the cracks and
are not tracked by the FAA. Anyone who has a second hand RV may find them self
in a regulatory mess if they want to make a major changes. The best (easiest)
thing would get the builder to sign the mod off if possible. However that is
one of the fantastic reasons for building your own plane.
Cheers George
> --> RV-List message posted by: Dwight Frye <dwight@openweave.org>
>
> Mike,
>
> I have a question related to this very activity ... and am asking not
> so much for myself (I'm still building), but just to satisfy my curiosity.
>
>I have had the impression that all these suggestions and requirements
> have been tendered with the idea that the person doing the work is the
> builder and has a repairman's certificate for the aircraft. However, what are
> the rules/regs for someone who does NOT have the repairmans certificate and
> who is NOT an A/P? Somehow I can't imagine that they would be in a position
> to change their prop, put it into phase 1, perform the flight testing, and
> sign it off putting it back in phase 2. Or can they?
---------------------------------
Message 20
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| Subject: | Re: Prop replacement, question for Das Fed, was: |
--> RV-List message posted by: "John Spicer" <spike@spikesplace.org>
I had always believed this to be incorrect. The repairman certificate is
required for you to sign off on the annual condition inspection. I had always
thought that it was not necessary to for anything else. Therefore you could do
something such as install a prop and sign it off, though it could be subject to
question during the condition inspection. Might be time to hit the FAR's.
-- John
www.rivetbangers.com - Building more than just RV's
www.spikesplace.org/cgi-php/serendipity - Builder's log
----- Original Message -----
From: <gmcjetpilot@yahoo.com>
Subject: Re: RV-List: Prop replacement, question for Das Fed, was:
> --> RV-List message posted by: <gmcjetpilot@yahoo.com>
>
>
> Mike:
>
> You are opening a can of worms :- ) The buyer of an experimental aircraft can
only do routine maintenance, as if it were a Piper or Cessna, as far as I know.
Only the manufacture (builder/repairman) can make major mods, however I
assume(?) an A&P or AI could do it and with the FAA's blessing. Again, as in all
these matters refer to the FISDO of choice for the answer. There is no "type
certificate" configuration for exp a/c, so many changes slip thru the cracks and
are not tracked by the FAA. Anyone who has a second hand RV may find them self
in a regulatory mess if they want to make a major changes. The best (easiest)
thing would get the builder to sign the mod off if possible. However that is one
of the fantastic reasons for building your own plane.
>
> Cheers George
Message 21
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| Subject: | Re: LASAR/elecr ign |
--> RV-List message posted by: "Dale Ensing" <densing@carolina.rr.com>
To Charlie,
I have only 25 hours on the engine/LASAR system but it is working as
expected. I do have the CHT sensor and not aware of any problems with it.
To Randy,
What kind of problems are you aware of?... or have experienced with the CHT
sensor feature?
Dale Ensing
Message 22
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| Subject: | Re: Prop replacement, question for Das Fed, was: |
--> RV-List message posted by: "John Spicer" <spike@spikesplace.org>
Check out this document from the FAA:
http://www.faa.gov/avr/afs/faa/8300/8300_vol2/2_025_00.pdf
and
AC650-23A: http://www.rivetbangers.com/documents/AC65-23A.pdf
The repairman certificate allows an individual to perform the annual condition
inspection only. I believe that any owner can alter the aircraft as they see
fit. I believe this would be based on the idea that the aircraft is not
certified.
Anyone have a better explanation?
-- John
www.rivetbangers.com - Building more than just RV's
www.spikesplace.org/cgi-php/serendipity - Builder's log
----- Original Message -----
From: <gmcjetpilot@yahoo.com>
Subject: Re: RV-List: Prop replacement, question for Das Fed, was:
> --> RV-List message posted by: <gmcjetpilot@yahoo.com>
>
>
> Mike:
>
> You are opening a can of worms :- ) The buyer of an experimental aircraft can
only do routine maintenance, as if it were a Piper or Cessna, as far as I know.
Only the manufacture (builder/repairman) can make major mods, however I
assume(?) an A&P or AI could do it and with the FAA's blessing. Again, as in all
these matters refer to the FISDO of choice for the answer. There is no "type
certificate" configuration for exp a/c, so many changes slip thru the cracks and
are not tracked by the FAA. Anyone who has a second hand RV may find them self
in a regulatory mess if they want to make a major changes. The best (easiest)
thing would get the builder to sign the mod off if possible. However that is one
of the fantastic reasons for building your own plane.
>
> Cheers George
>
>
> > --> RV-List message posted by: Dwight Frye <dwight@openweave.org>
> >
> > Mike,
> >
> > I have a question related to this very activity ... and am asking not
> > so much for myself (I'm still building), but just to satisfy my curiosity.
> >
> >I have had the impression that all these suggestions and requirements
> > have been tendered with the idea that the person doing the work is the
> > builder and has a repairman's certificate for the aircraft. However, what
are
> > the rules/regs for someone who does NOT have the repairmans certificate and
> > who is NOT an A/P? Somehow I can't imagine that they would be in a position
> > to change their prop, put it into phase 1, perform the flight testing, and
> > sign it off putting it back in phase 2. Or can they?
>
>
> ---------------------------------
>
>
Message 23
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--> RV-List message posted by: Douglas Weiler <dcw@nomadwi.com>
>
> If you were going to install a wing leveler auto-pilot, which one
> would you
> buy? The obvious choices are Navaid, Trutrak and Trio. I have an RV-4
> so
> panel space is very limited. In order to install the control head I
> would
> have to remove my turn coordinator so I was thinking it would be nice
> if the
> auto-pilot could also serve in this capacity. Then again, I have a
> Dynon
> D10A so maybe the turn coordinator loss is not that big of a deal.
> What are
> the pros and cons of these systems?
> Any testimonials? (There I was........1500', inverted, and running out
> of
> options. When all was but lost, I engaged the auto-pilot ........You
> know
> what I mean).
>
I have a RV-4 with a Digiflight II installed (alt hold, VS mode, and
GPSS steering). It is the most amazing autopilot I have used with side
of the B-757 I fly for work. It is amazingly damped in rough air,
never gets off altitude more than 10 feet and tracking s GPS course
within .05 of a NM. I now consider an absolute necessity for my RV-4.
XC flying is a no-brainer.. comfortable and fatigue free.
Save your pennies and you will consider it your best investment in your
airplane.
Doug Weiler
N722DW, 170 hour TT
Message 24
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| Subject: | Re: Prop replacement, question for Das Fed, was: |
--> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
Anyone can work on a homebuilt aircraft including a trained chimp or
your dog. You just have to have the condition inspection signed off by
an A&P or AI.
Dave
gmcjetpilot@yahoo.com wrote:
>--> RV-List message posted by: <gmcjetpilot@yahoo.com>
>
>
>Mike:
>
>You are opening a can of worms :- ) The buyer of an experimental aircraft can
only do routine maintenance, as if it were a Piper or Cessna, as far as I know.
Only the manufacture (builder/repairman) can make major mods, however I assume(?)
an A&P or AI could do it and with the FAA's blessing. Again, as in all these
matters refer to the FISDO of choice for the answer. There is no "type certificate"
configuration for exp a/c, so many changes slip thru the cracks and
are not tracked by the FAA. Anyone who has a second hand RV may find them self
in a regulatory mess if they want to make a major changes. The best (easiest)
thing would get the builder to sign the mod off if possible. However that is
one of the fantastic reasons for building your own plane.
>
>Cheers George
>
>
>
>
>>--> RV-List message posted by: Dwight Frye <dwight@openweave.org>
>>
>>Mike,
>>
>>I have a question related to this very activity ... and am asking not
>>so much for myself (I'm still building), but just to satisfy my curiosity.
>>
>>I have had the impression that all these suggestions and requirements
>>have been tendered with the idea that the person doing the work is the
>>builder and has a repairman's certificate for the aircraft. However, what are
>>the rules/regs for someone who does NOT have the repairmans certificate and
>>who is NOT an A/P? Somehow I can't imagine that they would be in a position
>>to change their prop, put it into phase 1, perform the flight testing, and
>>sign it off putting it back in phase 2. Or can they?
>>
>>
>
>
>
>---------------------------------
>
>
>
>
Message 25
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--> RV-List message posted by: Hopperdhh@aol.com
Has anyone ever tried to use the electric trim servo for altitude hold? I'm
not talking about rough air and turbulence, just normal VFR cross country
flying. I was thinking of just giving the trim motor a little blip to steer me
back to the right altitude. The pulse width could be proportional to the
error. I would use a Motorola MC68HC11 processor since I have worked with that
one for about 20 years. Pressure input would come from an automotive type
barometric pressure sensor with enough amplification to get the error signal
big enough for the processor to read it.
Any thoughts?
Dan Hopper
RV-7A (Flying)
Message 26
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| Subject: | POP rivet static port |
--> RV-List message posted by: "George Inman" <ghinman@mts.net>
When installing Van's static
port pop rivets.Do you set the rivet
or just glue it in place?
It seems to me that if you set
the rivet there will be not much to
attach the tubing to.
GEORGE H. INMAN
ghinman@mts.net
Message 27
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| Subject: | Re: POP rivet static port |
--> RV-List message posted by: Hopperdhh@aol.com
George,
You're right, I wish those rivets were longer. I sanded off the area on the
inside and set the rivets. Then used RTV (silicone) to glue and strain
relieve the tubing. That way the RTV can get hold of the fuselage sides too.
While you're at it put the "T" at the top of the bulkhead (centered) to get the
best average pressure between the two ports. All IMHO, of course.
Dan Hopper
Walton, IN
RV-7A (Flying)
In a message dated 3/10/05 2:42:47 P.M. US Eastern Standard Time,
ghinman@mts.net writes:
When installing Van's static
port pop rivets.Do you set the rivet
or just glue it in place?
It seems to me that if you set
the rivet there will be not much to
attach the tubing to.
GEORGE H. INMAN
ghinman@mts.net
Message 28
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--> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club" <sisson@consolidated.net>
Hopperdhh@aol.com wrote:
> --> RV-List message posted by: Hopperdhh@aol.com
>
> Has anyone ever tried to use the electric trim servo for altitude hold? I'm
> not talking about rough air and turbulence, just normal VFR cross country
> flying. I was thinking of just giving the trim motor a little blip to steer
me
> back to the right altitude. The pulse width could be proportional to the
> error. I would use a Motorola MC68HC11 processor since I have worked with that
> one for about 20 years. Pressure input would come from an automotive type
> barometric pressure sensor with enough amplification to get the error signal
> big enough for the processor to read it.
>
> Any thoughts?
>
> Dan Hopper
> RV-7A (Flying)
Keep us informed on this.
Phil RV6 flying
Message 29
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|
--> RV-List message posted by: Sam Buchanan <sbuc@hiwaay.net>
Hopperdhh@aol.com wrote:
> --> RV-List message posted by: Hopperdhh@aol.com
>
>
> Has anyone ever tried to use the electric trim servo for altitude hold? I'm
> not talking about rough air and turbulence, just normal VFR cross country
> flying. I was thinking of just giving the trim motor a little blip to steer
me
> back to the right altitude. The pulse width could be proportional to the
> error. I would use a Motorola MC68HC11 processor since I have worked with that
> one for about 20 years. Pressure input would come from an automotive type
> barometric pressure sensor with enough amplification to get the error signal
> big enough for the processor to read it.
>
> Any thoughts?
>
> Dan Hopper
> RV-7A (Flying)
Dan, the answer is "yes". Here is a link to an altitude hold unit that
used the trim tab:
http://members.aol.com/_ht_a/ccady/eztrim.htm
Seems I heard the unit was out of production but since the page is still
active, I may be wrong about that. I think I also read that the unit
struggled with holding the speedy RV on altitude but worked better with
slower aircraft.
Sam Buchanan
Message 30
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| Subject: | Re: POP rivet static port |
--> RV-List message posted by: Walter Tondu <walter@tondu.com>
On 03/10 1:40, George Inman wrote:
> --> RV-List message posted by: "George Inman" <ghinman@mts.net>
>
> When installing Van's static
> port pop rivets.Do you set the rivet
> or just glue it in place?
> It seems to me that if you set
> the rivet there will be not much to
> attach the tubing to.
I "pulled" the pop rivet just enough to hold it firmly in place
but not all the way so that it "pops". Then push the center
pull pin from the outside inwards until it comes out. The
flexible tubing vans provides will go over the now spread
rearend of the rivet. After the tubing is in place I RTV'd
it as a security measure.
http://www.rv7-a.com/129_2938.jpg
--
Walter Tondu
http://www.rv7-a.com
Message 31
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| Subject: | Re: POP rivet static port |
--> RV-List message posted by: Walter Tondu <walter@tondu.com>
On 03/10 2:50, Hopperdhh@aol.com wrote:
> You're right, I wish those rivets were longer. I sanded off the area on the
> inside and set the rivets. Then used RTV (silicone) to glue and strain
> relieve the tubing. That way the RTV can get hold of the fuselage sides too.
> While you're at it put the "T" at the top of the bulkhead (centered) to get
the
> best average pressure between the two ports. All IMHO, of course.
>
> Dan Hopper
> Walton, IN
> RV-7A (Flying)
>
>
> In a message dated 3/10/05 2:42:47 P.M. US Eastern Standard Time,
> ghinman@mts.net writes:
>
> When installing Van's static
> port pop rivets.Do you set the rivet
> or just glue it in place?
> It seems to me that if you set
> the rivet there will be not much to
> attach the tubing to.
I did it just like Dan. A few more pics.
see entry dated 4/11/04
http://www.rv7-a.com/fuselage_4.htm
--
Walter Tondu
http://www.rv7-a.com
Message 32
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--> RV-List message posted by: "Stein Bruch" <stein@steinair.com>
This has been done and there was a guy some years ago that sold a kit for
this for some time period. Overall, it turned out to be un-popular at least
in the RV crowd. I don't have personal experience with it so I can't
comment on performance direclty, but there's probably some data in the
archives. I'm not sure those little servos would be up to it, but who
knows!
Address is: http://members.aol.com/_ht_a/ccady/eztrim.htm The page is
active, but I seem to recall that they haven't been selling any lately.
Maybe I'm wrong.
I guess it might be worth a shot, but remember the Altitude AP's out there
right now are only about $1600 bucks and it's hard to beat that
functionality.
Cheers,
Stein.
Do Not Archive (It's already there).
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com]On Behalf Of
Hopperdhh@aol.com
Subject: Re: RV-List: Auto Pilots
--> RV-List message posted by: Hopperdhh@aol.com
Has anyone ever tried to use the electric trim servo for altitude hold?
I'm
not talking about rough air and turbulence, just normal VFR cross country
flying. I was thinking of just giving the trim motor a little blip to
steer me
back to the right altitude. The pulse width could be proportional to the
error. I would use a Motorola MC68HC11 processor since I have worked with
that
one for about 20 years. Pressure input would come from an automotive type
barometric pressure sensor with enough amplification to get the error
signal
big enough for the processor to read it.
Any thoughts?
Dan Hopper
RV-7A (Flying)
Message 33
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|
--> RV-List message posted by: "Larry James" <larry@ncproto.com>
I've looked at the archives and come away a little confused. I have the
installation kit from TruTrak that includes servos and brackets for roll and
pitch. The problem I have is with the constant control resistance of the
TruTrak servo.
The archives indicate the Navaid servo has a clutch; thereby having no
control resistance when disengaged. This is a major benefit in my book.
But the same series of posts indicate there are better (digital) controls
available.
Could someone post a simple matrix of options currently or soon-to-be
available options or combination options ??
Larry E. James
Bellevue, WA HR2 -fuselage and systems-
Message 34
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--> RV-List message posted by: Mickey Coggins <mick-matronics@rv8.ch>
Couldn't you slurp the altitude information from your altitude
encoder before you send it to the transponder?
> ... Pressure input would come from an automotive type
> barometric pressure sensor with enough amplification to get the error signal
> big enough for the processor to read it.
>
--
Mickey Coggins
http://www.rv8.ch/
#82007 Wiring
Message 35
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| Subject: | Re: A/P and servos |
--> RV-List message posted by: Bill VonDane <bill@vondane.com>
the Blue Mountain servos have magnetic clutches an no resistance when not
engaged...
-Bill
----- Original Message -----
From: "Larry James" <larry@ncproto.com>
Subject: RV-List: A/P and servos
--> RV-List message posted by: "Larry James" <larry@ncproto.com>
I've looked at the archives and come away a little confused. I have the
installation kit from TruTrak that includes servos and brackets for roll and
pitch. The problem I have is with the constant control resistance of the
TruTrak servo.
The archives indicate the Navaid servo has a clutch; thereby having no
control resistance when disengaged. This is a major benefit in my book.
But the same series of posts indicate there are better (digital) controls
available.
Could someone post a simple matrix of options currently or soon-to-be
available options or combination options ??
Larry E. James
Bellevue, WA HR2 -fuselage and systems-
Message 36
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|
--> RV-List message posted by: Bill VonDane <bill@vondane.com>
I have one of these boards and instructions... Never did anything with
it...
-Bill
----- Original Message -----
From: "Stein Bruch" <stein@steinair.com>
Subject: RE: RV-List: Auto Pilots
--> RV-List message posted by: "Stein Bruch" <stein@steinair.com>
This has been done and there was a guy some years ago that sold a kit for
this for some time period. Overall, it turned out to be un-popular at least
in the RV crowd. I don't have personal experience with it so I can't
comment on performance direclty, but there's probably some data in the
archives. I'm not sure those little servos would be up to it, but who
knows!
Address is: http://members.aol.com/_ht_a/ccady/eztrim.htm The page is
active, but I seem to recall that they haven't been selling any lately.
Maybe I'm wrong.
I guess it might be worth a shot, but remember the Altitude AP's out there
right now are only about $1600 bucks and it's hard to beat that
functionality.
Cheers,
Stein.
Do Not Archive (It's already there).
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com]On Behalf Of
Hopperdhh@aol.com
Subject: Re: RV-List: Auto Pilots
--> RV-List message posted by: Hopperdhh@aol.com
Has anyone ever tried to use the electric trim servo for altitude hold?
I'm
not talking about rough air and turbulence, just normal VFR cross country
flying. I was thinking of just giving the trim motor a little blip to
steer me
back to the right altitude. The pulse width could be proportional to the
error. I would use a Motorola MC68HC11 processor since I have worked with
that
one for about 20 years. Pressure input would come from an automotive type
barometric pressure sensor with enough amplification to get the error
signal
big enough for the processor to read it.
Any thoughts?
Dan Hopper
RV-7A (Flying)
Message 37
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|
| Subject: | Electric or manual trim? |
0.20 FROM_HAS_ULINE_NUMS From": contains.an.underline.and.numbers/letters@matronics.com
--> RV-List message posted by: Jim Peoples <jp_rv2001@yahoo.com>
Just ordering the RV-7 empennage kit... what is the consensus on whether to go
for electic or manual trim?
jp
---------------------------------
Message 38
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|
| Subject: | Re: LASAR/elecr ign |
--> RV-List message posted by: "Randy Lervold" <randy@romeolima.com>
> To Randy,
> What kind of problems are you aware of?... or have experienced with the
> CHT
> sensor feature?
> Dale Ensing
First off, you need the correct dual pigtail CHT sensor, that is if you have
a 4-channel CHT gauge. There are J-types and K-types and I forget which the
LASAR requires, but it won't work correctly unless you have the correct
type. Then, for some reason the connections from the sensor pigtail to the
wires that go into the brain are hypersensitive. They can look perfectly
good, and even test good with an ohmeter, but the slightest bit of
resistance will cause the LASAR brain to fault, and when it faults the red
dash light comes on and it simply goes back into fixed timing mag mode. It's
not a safety issue because you still have two magnetos driving the system,
but it's highly annoying and you're not getting the benefit of the advanced
timing. Of course the red light is conspicuous also.
What the CHT circuit does is move the advance back in incrental amounts any
time the CHT is 425 degrees F or above. This was required for certification.
Now most of us have fancy engine monitors with their own alarms for high CHT
so if you simply eliminate the circuit you'll never have a problem. It
cannot be field deactivated.
My advice is to install your LASAR on a breaker switch near the master
switch so it can be turned off. The simply fact is that your engine will run
hotter with LASAR because it's buring the fuel/air charge more efficiently
in the combustion chamber, not in the exhaust system. Therefore you need to
be aware of it. On my RV-8 I learned to turn the system off for a long
climbout on a hot day, then switch it back on once leveled off. Now my RV-8
had smaller cooling inlets and a plenum so it didn't have a surplus of
cooling air to start with. I only had to turn it off 2-3 times in nearly 400
hours of flying. That sort of scenario is when on a cross country stop for
fuel, high density altitude, high OAT, gross weight, and on a long climb.
I'd takeoff normally then once my climb was established I'd turn the LASAR
off, climb to 10/12/14k, then turn it back on. Just watch the CHTs and use
your own judgement.
All told I really like the LASAR system, and Unison support has been great,
but I do think the P-mag/E-mag product has merit and may well be the system
of choice in the near future, but like all the rest of you I'd like to see
more field experience with the product and more experience with how the
company will support it.
FWIW,
Randy Lervold
www.rv-8.com
www.rv-3.com
Message 39
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| Subject: | Re: Prop replacement, question for Das Fed, was: |
--> RV-List message posted by: "cgalley" <cgalley@qcbc.org>
I've looked the statement that the owner can do no more than he can on
certified.
This is FLAT OUT WRONG.
Anyone can work on an experimental.
One caveat and even this might be wrong. At the yearly conditional
inspection, the work has to be good enough to get the plane signed off as
airworthy.
Cy Galley
EAA Safety Programs Editor
Always looking for ideas and articles for EAA Sport Pilot
----- Original Message -----
From: "Dave Bristol" <dbris200@sbcglobal.net>
Subject: Re: RV-List: Prop replacement, question for Das Fed, was:
> --> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
>
> Anyone can work on a homebuilt aircraft including a trained chimp or
> your dog. You just have to have the condition inspection signed off by
> an A&P or AI.
>
> Dave
>
> gmcjetpilot@yahoo.com wrote:
>
>>--> RV-List message posted by: <gmcjetpilot@yahoo.com>
>>
>>
>>Mike:
>>
>>You are opening a can of worms :- ) The buyer of an experimental aircraft
>>can only do routine maintenance, as if it were a Piper or Cessna, as far
>>as I know. Only the manufacture (builder/repairman) can make major mods,
>>however I assume(?) an A&P or AI could do it and with the FAA's blessing.
>>Again, as in all these matters refer to the FISDO of choice for the
>>answer. There is no "type certificate" configuration for exp a/c, so many
>>changes slip thru the cracks and are not tracked by the FAA. Anyone who
>>has a second hand RV may find them self in a regulatory mess if they want
>>to make a major changes. The best (easiest) thing would get the builder to
>>sign the mod off if possible. However that is one of the fantastic reasons
>>for building your own plane.
>>
>>Cheers George
>>
>>
>>
>>
>>>--> RV-List message posted by: Dwight Frye <dwight@openweave.org>
>>>
>>>Mike,
>>>
>>>I have a question related to this very activity ... and am asking not
>>>so much for myself (I'm still building), but just to satisfy my
>>>curiosity.
>>>
>>>I have had the impression that all these suggestions and requirements
>>>have been tendered with the idea that the person doing the work is the
>>>builder and has a repairman's certificate for the aircraft. However, what
>>>are
>>>the rules/regs for someone who does NOT have the repairmans certificate
>>>and
>>>who is NOT an A/P? Somehow I can't imagine that they would be in a
>>>position
>>>to change their prop, put it into phase 1, perform the flight testing,
>>>and
>>>sign it off putting it back in phase 2. Or can they?
>>>
>>>
>>
>>
>>
>>---------------------------------
>>
>>
>>
>>
>
>
>
Message 40
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| Subject: | Re: A/P and servos |
--> RV-List message posted by: Sam Buchanan <sbuc@hiwaay.net>
Larry James wrote:
> --> RV-List message posted by: "Larry James" <larry@ncproto.com>
>
> I've looked at the archives and come away a little confused. I have the
> installation kit from TruTrak that includes servos and brackets for roll and
> pitch. The problem I have is with the constant control resistance of the
> TruTrak servo.
>
> The archives indicate the Navaid servo has a clutch; thereby having no
> control resistance when disengaged. This is a major benefit in my book.
> But the same series of posts indicate there are better (digital) controls
> available.
>
> Could someone post a simple matrix of options currently or soon-to-be
> available options or combination options ??
>
> Larry E. James
> Bellevue, WA HR2 -fuselage and systems-
Larry, I'll take a stab at it.
Navaid servo has a solenoid driven clutch which completely disengages
when power is removed and has no drag. This servo, while analog and
several years old, continues to function well in the field. You can
drive the Navaid servo with the Navaid, EZ-Pilot, or the Navaid version
of the DigiTrak.
The TruTrak servo is a stepping servo motor that remains attached to the
control system at all times. When it is powered down, there is a very
small amount of drag that you can feel on the ground, but you won't
notice it in the air.
The EZ-Pilot and DigiTrak heads are both digital and use solid-state
sensors instead of the mechanical gyro in the Navaid. They also offer
functions, features and performance that is beyond the capability of the
Navaid.
When it comes to pitch control, you can go with a wing leveler and add
the excellent AlTrak or one of the upcoming units from Trio Avionics. Or
you can install a multi-axis system such as the TruTrak autopilots.
There is also the Blue Mtn system that is an add-on for their EFIS. I do
not know how the clutch is designed in the BMA servos.
Maybe this didn't muddy the water too much. :-)
Sam Buchanan
http://thervjournal.com
Message 41
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| Subject: | Re: Prop replacement, question for Das Fed, was: |
--> RV-List message posted by: Sam Buchanan <sbuc@hiwaay.net>
cgalley wrote:
> --> RV-List message posted by: "cgalley" <cgalley@qcbc.org>
>
> I've looked the statement that the owner can do no more than he can on
> certified.
> This is FLAT OUT WRONG.
>
> Anyone can work on an experimental.
>
> One caveat and even this might be wrong. At the yearly conditional
> inspection, the work has to be good enough to get the plane signed off as
> airworthy.
>
> Cy Galley
> EAA Safety Programs Editor
> Always looking for ideas and articles for EAA Sport Pilot
Cy, I think you could also correctly state that *anyone* can work on a
certificated aircraft. The kicker is getting an A&P/AI to make the
necessary logbook entries.
Sam Buchanan (overhauled two engines with A&P/AI's blessing)
Message 42
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|
| Subject: | Re: Odyssey Battery Installation Kit |
Received-SPF: none
--> RV-List message posted by: "Jim Cimino" <jcimino@echoes.net>
I used the stock tray and made two able brackets that I bolted to the bottom
to take up the space, this way if I ever want to install a full size battery
all I have to do is remove the brackets and make an new hold down. I cut
the piece of channel that holds the battery down to fit and used 3/4" angle
for the spacers.
Jim
Jim Cimino
N7TL
RV-8 S/N 80039
15+ Hours
http://www.geocities.com/jcimino.geo/
----- Original Message -----
From: "Alexander, Don" <Don.Alexander@astenjohnson.com>
Subject: RV-List: Odyssey Battery Installation Kit
> --> RV-List message posted by: "Alexander, Don"
> <Don.Alexander@astenjohnson.com>
>
> Listers,
> I am looking at purchasing an Odyssey 680 and noticed that Van's offers
> an installation kit for this battery for around $50. Does anyone have
> an idea what would be included in the kit that would make it cost $50?
> I'm guessing that it probably has a couple of shims in it.
> Don Alexander
> RV-8 Electrical and Panel
>
>
>
Message 43
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| Subject: | Electric or Manual Trim ? |
0.20 FROM_HAS_ULINE_NUMS From": contains.an.underline.and.numbers/letters@matronics.com
--> RV-List message posted by: Jim Peoples <jp_rv2001@yahoo.com>
Just ordering the RV-7 empennage kit... what is the consensus on whether to go
for electic or manual trim?
---------------------------------
Message 44
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--> RV-List message posted by: "John" <n1cxo320@salidaco.com>
It won't work...I had that dream some time ago...how would electric trim
"know" if you were descending or climbing a bit ? It wouldn't. You need some
input regarding pressure changes not just aerodynamic forces on the
elevator.
John
----- Original Message -----
From: "Phil Sisson, Litchfield Aerobatic Club" <sisson@consolidated.net>
Subject: Re: RV-List: Auto Pilots
> --> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club"
> <sisson@consolidated.net>
>
> Hopperdhh@aol.com wrote:
>
>> --> RV-List message posted by: Hopperdhh@aol.com
>>
>> Has anyone ever tried to use the electric trim servo for altitude hold?
>> I'm
>> not talking about rough air and turbulence, just normal VFR cross
>> country
>> flying. I was thinking of just giving the trim motor a little blip to
>> steer me
>> back to the right altitude. The pulse width could be proportional to
>> the
>> error. I would use a Motorola MC68HC11 processor since I have worked
>> with that
>> one for about 20 years. Pressure input would come from an automotive
>> type
>> barometric pressure sensor with enough amplification to get the error
>> signal
>> big enough for the processor to read it.
>>
>> Any thoughts?
>>
>> Dan Hopper
>> RV-7A (Flying)
>
> Keep us informed on this.
> Phil RV6 flying
>
>
>
Message 45
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|
--> RV-List message posted by: "Stein Bruch" <stein@steinair.com>
Well that's not quite true....it has been done and it's been proven to work.
Simple Altitude encoded information is all the trim system needs to know.
In reality it's not much different than a servo running an altitude
autopilot.
I'm not saying it works well or is good, but it has and will work to some
extent. It's just a slimmed down "Altitude hold" on a diet!
Cheers,
Stein.
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com]On Behalf Of John
Subject: Re: RV-List: Auto Pilots
--> RV-List message posted by: "John" <n1cxo320@salidaco.com>
It won't work...I had that dream some time ago...how would electric trim
"know" if you were descending or climbing a bit ? It wouldn't. You need some
input regarding pressure changes not just aerodynamic forces on the
elevator.
John
----- Original Message -----
From: "Phil Sisson, Litchfield Aerobatic Club" <sisson@consolidated.net>
Subject: Re: RV-List: Auto Pilots
> --> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club"
> <sisson@consolidated.net>
>
> Hopperdhh@aol.com wrote:
>
>> --> RV-List message posted by: Hopperdhh@aol.com
>>
>> Has anyone ever tried to use the electric trim servo for altitude hold?
>> I'm
>> not talking about rough air and turbulence, just normal VFR cross
>> country
>> flying. I was thinking of just giving the trim motor a little blip to
>> steer me
>> back to the right altitude. The pulse width could be proportional to
>> the
>> error. I would use a Motorola MC68HC11 processor since I have worked
>> with that
>> one for about 20 years. Pressure input would come from an automotive
>> type
>> barometric pressure sensor with enough amplification to get the error
>> signal
>> big enough for the processor to read it.
>>
>> Any thoughts?
>>
>> Dan Hopper
>> RV-7A (Flying)
>
> Keep us informed on this.
> Phil RV6 flying
>
>
Message 46
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|
--> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
I built one of these units and worked with it for quite a while and the
bottom line was that the trim servo was just too slow - it worked, but
not very well, the servo just couldn't keep up with the changes. The
circuit and software however, are good and my current project is to mate
it to a real servo.
Will let the list know how it works.
Dave -6 So Cal
Sam Buchanan wrote:
>--> RV-List message posted by: Sam Buchanan <sbuc@hiwaay.net>
>
>Hopperdhh@aol.com wrote:
>
>
>>--> RV-List message posted by: Hopperdhh@aol.com
>>
>>
>>Has anyone ever tried to use the electric trim servo for altitude hold? I'm
>>not talking about rough air and turbulence, just normal VFR cross country
>>flying. I was thinking of just giving the trim motor a little blip to steer
me
>>back to the right altitude. The pulse width could be proportional to the
>>error. I would use a Motorola MC68HC11 processor since I have worked with that
>>one for about 20 years. Pressure input would come from an automotive type
>>barometric pressure sensor with enough amplification to get the error signal
>>big enough for the processor to read it.
>>
>>Any thoughts?
>>
>>Dan Hopper
>>RV-7A (Flying)
>>
>>
>
>
>Dan, the answer is "yes". Here is a link to an altitude hold unit that
>used the trim tab:
>
>http://members.aol.com/_ht_a/ccady/eztrim.htm
>
>Seems I heard the unit was out of production but since the page is still
>active, I may be wrong about that. I think I also read that the unit
>struggled with holding the speedy RV on altitude but worked better with
>slower aircraft.
>
>Sam Buchanan
>
>
>
>
Message 47
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--> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
But, the mode C output only has 100' resolution so you'd be all over the
sky chasing it. On the other hand, GPS altitude might work pretty good.
It's not very accurate but you don't care since all you want is to
maintain your present altitude. GPS altitude doesn't change with
barometric pressure so you'd have to keep an eye on it, but it should work.
Dave -6 So Cal
Stein Bruch wrote:
>--> RV-List message posted by: "Stein Bruch" <stein@steinair.com>
>
>Well that's not quite true....it has been done and it's been proven to work.
>Simple Altitude encoded information is all the trim system needs to know.
>In reality it's not much different than a servo running an altitude
>autopilot.
>
>I'm not saying it works well or is good, but it has and will work to some
>extent. It's just a slimmed down "Altitude hold" on a diet!
>
>Cheers,
>Stein.
>
>-----Original Message-----
>From: owner-rv-list-server@matronics.com
>[mailto:owner-rv-list-server@matronics.com]On Behalf Of John
>To: rv-list@matronics.com
>Subject: Re: RV-List: Auto Pilots
>
>
>--> RV-List message posted by: "John" <n1cxo320@salidaco.com>
>
>It won't work...I had that dream some time ago...how would electric trim
>"know" if you were descending or climbing a bit ? It wouldn't. You need some
>input regarding pressure changes not just aerodynamic forces on the
>elevator.
>
>John
>
>
>----- Original Message -----
>From: "Phil Sisson, Litchfield Aerobatic Club" <sisson@consolidated.net>
>To: <rv-list@matronics.com>
>Subject: Re: RV-List: Auto Pilots
>
>
>
>
>>--> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club"
>><sisson@consolidated.net>
>>
>>Hopperdhh@aol.com wrote:
>>
>>
>>
>>>--> RV-List message posted by: Hopperdhh@aol.com
>>>
>>>Has anyone ever tried to use the electric trim servo for altitude hold?
>>>I'm
>>>not talking about rough air and turbulence, just normal VFR cross
>>>country
>>>flying. I was thinking of just giving the trim motor a little blip to
>>>steer me
>>>back to the right altitude. The pulse width could be proportional to
>>>the
>>>error. I would use a Motorola MC68HC11 processor since I have worked
>>>with that
>>>one for about 20 years. Pressure input would come from an automotive
>>>type
>>>barometric pressure sensor with enough amplification to get the error
>>>signal
>>>big enough for the processor to read it.
>>>
>>>Any thoughts?
>>>
>>>Dan Hopper
>>>RV-7A (Flying)
>>>
>>>
>>Keep us informed on this.
>>Phil RV6 flying
>>
>>
>>
>>
>
>
>
>
Message 48
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|
| Subject: | Re: links to Super 8? |
--> RV-List message posted by: RGray67968@aol.com
I'd start with Mike Stewart! Also, email him with any/all of your
questions.....he'll help you out big time.
http://www.mstewart.net/
Rick Gray in Ohio at the Buffalo Farm
http://rv6rick.tripod.com/ohiovalleyrvators/
Hi all,
I'm too poor to afford one but I got three friends agonizing over the
F1or Harmon Rocket or RV-8 decision. I have heard that there is a 540 powered
RV-8 option that uses Rocket style gear? Anybody got a links to 540 powered RV-8
sites? I've only been able to find one. Thank you in advance, Vince in Mojave.
P.S. Hope the question ain't anathema to some of you. I
don't want to hear it.
Vince
flyby41@earthlink.net
Message 49
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|
--> RV-List message posted by: linn walters <lwalters2@cfl.rr.com>
Robert E. Lynch wrote:
>--> RV-List message posted by: "Robert E. Lynch" <rv6lynch@earthlink.net>
>
>TRUTRAK TRUTRAK TRUTRAK No further discussions necessary.
>
>Bob
>
Although the question has been asked and hashed in the same manner
...... what I got was an opinion, without any rationale WHY you chose
TRUTRAK! This being the information age, is it possible that you could
part with your reasoning??? I, for one find the choices very difficult
to make ..... and the longer the companies compete, they keep adding new
stuff so someday they'll be pretty equal in capability. But they're not
there yet. I have a lot of time and a few more 'sun-n-funs' to look,
fondle, drool .... but I still will lack the reasoning some of you have
for choosing a particular unit. I've talked to a few folks that made
their decision on 'a good deal' ..... but I want facts, maam, just the
facts.
Linn
do not archive
>
>
>
>
--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Message 50
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|
| Subject: | Re: Prop replacement, question for Das Fed, was: |
--> RV-List message posted by: linn walters <lwalters2@cfl.rr.com>
Dave Bristol wrote:
>--> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
>
>Anyone can work on a homebuilt aircraft including a trained chimp or
>your dog. You just have to have the condition inspection signed off by
>an A&P or AI.
>
>Dave
>
Or the original builder with a repairmans certificate.
Linn
do not archive
--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Message 51
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|
| Subject: | Re: Electric or Manual Trim ? |
--> RV-List message posted by: "Rob Prior (rv7)" <rv7@b4.ca>
On 14:43:34 2005-03-10 Jim Peoples <jp_rv2001@yahoo.com> wrote:
> --> RV-List message posted by: Jim Peoples <jp_rv2001@yahoo.com>
> Just ordering the RV-7 empennage kit... what is the consensus on
> whether to go for electic or manual trim?
I don't think you'll easily find a consensus here on trim, primer,
nosewheel/tailwheel, or slider/tip-up. But here's my opinion:
1. The manual trim option is the simplest, and probably the lightest, option.
2. The stock electric trim kit puts the servo in the elevator, which means
you require a little bit of extra balance weight in your elevator
counterbalances. I don't know how much, maybe someone here who's done it
can tell us. This means you have both the extra weight of the servo, and
the extra balance weight, in your tail (which is a long way from the CG in
an airplane that is prone to being rear-CG sensitive).
3. Another option is to do as some others have done, which is a hybrid of
the two "normal" systems. Buy the manual trim system, and the trim servo.
Mount the servo on the shelf in front of the horizontal stabilizer, and
drive the trim tab with it using the manual trim hardware. This system
saves the extra balance weight in the elevator, and the weight of a
push-pull cable all the way to the cockpit (you swap it for a light-gauge
wire instead).
Hope this helps!
-Rob
Message 52
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|
| Subject: | Re: The Mother of all giant scale B-52's |
--> RV-List message posted by: <smileyburnett@charter.net>
Rick,
Thanks for coming by. My baloon would certainly be deflated more if I built that
B52 and watched it go in.
Ron
>
> From: Rick Galati <rick6a@yahoo.com>
> Date: 2005/03/10 Thu PM 02:43:33 GMT
> To: rv-list@matronics.com
> Subject: RV-List: The Mother of all giant scale B-52's
>
>
Message 53
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|
| Subject: | Re: Prop replacement, question for Das Fed, was: |
--> RV-List message posted by: Charlie England <ceengland@bellsouth.net>
cgalley wrote:
>--> RV-List message posted by: "cgalley" <cgalley@qcbc.org>
>
>I've looked the statement that the owner can do no more than he can on
>certified.
>This is FLAT OUT WRONG.
>
> Anyone can work on an experimental.
>
>One caveat and even this might be wrong. At the yearly conditional
>inspection, the work has to be good enough to get the plane signed off as
>airworthy.
>
>Cy Galley
>EAA Safety Programs Editor
>Always looking for ideas and articles for EAA Sport Pilot
>
Even the 2nd statement isn't quite right. Experimental Homebuilts aren't
considered 'Airworthy' by the FAA. If you read the boilerplate for
signing off the 'annual', it says that the a/c is found to be in a
condition that will allow 'safe operation'.
I'm pretty sure that this stuff is covered somewhere on the EAA website.
Charlie
Message 54
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|
--> RV-List message posted by: "Ed Anderson" <eanderson@carolina.rr.com>
I am currently playing with a design for a heading hold -wing leveler. I
have the electronic components mocked up in a electronic simulation (PSPICE)
at this point. I am still debating whether to go with the analog approach
or the digital using a PIC Microchip. The digital clearly offers more move
for growth and change but the complexity of the algorithms are a bit much.
The analog looks to be more straight forward - but with limited growth
capability.
I am looking to make a simply (inexpensive) system that will start out as
an manual electric aileron trim and progress from there. I believe that a
Cascading set of simple OpAmp PID controllers looks to be the best bet (and
least expensive) for smooth operation. This is basically two control
loops - the outside loop would be comparing a heading signal to your set
heading the difference would generally a roll angle requirement this would
feed to the inside loop where the current roll angle would be compared to
the command roll and if a difference exists the inner list would generate a
roll rate command which would end up driving the servo. A small difference
in heading would generate a small roll rate and a larger difference a faster
roll rate (with limits of course - probably 15 deg max). Obviously quite a
bit more complex than this brief description - but that's the general idea.
The Unit is intended for VFR ONLY and will probably use a 1/3 scale model
aircraft servo.
If anyone is interested in discussing approaches off-line give me a shout.
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com
----- Original Message -----
From: "Dave Bristol" <dbris200@sbcglobal.net>
Subject: Re: RV-List: Auto Pilots
> --> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
>
> I built one of these units and worked with it for quite a while and the
> bottom line was that the trim servo was just too slow - it worked, but
> not very well, the servo just couldn't keep up with the changes. The
> circuit and software however, are good and my current project is to mate
> it to a real servo.
> Will let the list know how it works.
>
> Dave -6 So Cal
>
> Sam Buchanan wrote:
>
> >--> RV-List message posted by: Sam Buchanan <sbuc@hiwaay.net>
> >
> >Hopperdhh@aol.com wrote:
> >
> >
> >>--> RV-List message posted by: Hopperdhh@aol.com
> >>
> >>
> >>Has anyone ever tried to use the electric trim servo for altitude hold?
I'm
> >>not talking about rough air and turbulence, just normal VFR cross
country
> >>flying. I was thinking of just giving the trim motor a little blip to
steer me
> >>back to the right altitude. The pulse width could be proportional to
the
> >>error. I would use a Motorola MC68HC11 processor since I have worked
with that
> >>one for about 20 years. Pressure input would come from an automotive
type
> >>barometric pressure sensor with enough amplification to get the error
signal
> >>big enough for the processor to read it.
> >>
> >>Any thoughts?
> >>
> >>Dan Hopper
> >>RV-7A (Flying)
> >>
> >>
> >
> >
> >Dan, the answer is "yes". Here is a link to an altitude hold unit that
> >used the trim tab:
> >
> >http://members.aol.com/_ht_a/ccady/eztrim.htm
> >
> >Seems I heard the unit was out of production but since the page is still
> >active, I may be wrong about that. I think I also read that the unit
> >struggled with holding the speedy RV on altitude but worked better with
> >slower aircraft.
> >
> >Sam Buchanan
> >
> >
> >
> >
>
>
Message 55
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|
--> RV-List message posted by: "Jim Jewell" <jjewell@telus.net>
I'm told that if you have serial code output available such as the Dynon
D10A produces for instance, it will be in 10' resolution.
Is this True?
Jim in Kelowna
----- Original Message -----
From: "Dave Bristol" <dbris200@sbcglobal.net>
Subject: Re: RV-List: Auto Pilots
> --> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
>
> But, the mode C output only has 100' resolution so you'd be all over the
> sky chasing it. On the other hand, GPS altitude might work pretty good.
> It's not very accurate but you don't care since all you want is to
> maintain your present altitude. GPS altitude doesn't change with
> barometric pressure so you'd have to keep an eye on it, but it should
> work.
>
> Dave -6 So Cal
>
> Stein Bruch wrote:
>
>>--> RV-List message posted by: "Stein Bruch" <stein@steinair.com>
>>
>>Well that's not quite true....it has been done and it's been proven to
>>work.
>>Simple Altitude encoded information is all the trim system needs to know.
>>In reality it's not much different than a servo running an altitude
>>autopilot.
>>
>>I'm not saying it works well or is good, but it has and will work to some
>>extent. It's just a slimmed down "Altitude hold" on a diet!
>>
>>Cheers,
>>Stein.
>>
>>-----Original Message-----
>>From: owner-rv-list-server@matronics.com
>>[mailto:owner-rv-list-server@matronics.com]On Behalf Of John
>>To: rv-list@matronics.com
>>Subject: Re: RV-List: Auto Pilots
>>
>>
>>--> RV-List message posted by: "John" <n1cxo320@salidaco.com>
>>
>>It won't work...I had that dream some time ago...how would electric trim
>>"know" if you were descending or climbing a bit ? It wouldn't. You need
>>some
>>input regarding pressure changes not just aerodynamic forces on the
>>elevator.
>>
>>John
>>
>>
>>----- Original Message -----
>>From: "Phil Sisson, Litchfield Aerobatic Club" <sisson@consolidated.net>
>>To: <rv-list@matronics.com>
>>Subject: Re: RV-List: Auto Pilots
>>
>>
>>
>>
>>>--> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club"
>>><sisson@consolidated.net>
>>>
>>>Hopperdhh@aol.com wrote:
>>>
>>>
>>>
>>>>--> RV-List message posted by: Hopperdhh@aol.com
>>>>
>>>>Has anyone ever tried to use the electric trim servo for altitude hold?
>>>>I'm
>>>>not talking about rough air and turbulence, just normal VFR cross
>>>>country
>>>>flying. I was thinking of just giving the trim motor a little blip to
>>>>steer me
>>>>back to the right altitude. The pulse width could be proportional to
>>>>the
>>>>error. I would use a Motorola MC68HC11 processor since I have worked
>>>>with that
>>>>one for about 20 years. Pressure input would come from an automotive
>>>>type
>>>>barometric pressure sensor with enough amplification to get the error
>>>>signal
>>>>big enough for the processor to read it.
>>>>
>>>>Any thoughts?
>>>>
>>>>Dan Hopper
>>>>RV-7A (Flying)
>>>>
>>>>
>>>Keep us informed on this.
>>>Phil RV6 flying
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>
>
>
Message 56
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--> RV-List message posted by: "Alex Peterson" <alexpeterson@earthlink.net>
> My advice is to install your LASAR on a breaker switch near
> the master
> switch so it can be turned off. The simply fact is that your
> engine will run
> hotter with LASAR because it's buring the fuel/air charge
> more efficiently
> in the combustion chamber, not in the exhaust system.
> Therefore you need to
> be aware of it. On my RV-8 I learned to turn the system off
> for a long
> climbout on a hot day, then switch it back on once leveled
> off. Now my RV-8
I have 584 hours on my Lasar system now over the last 3.5 years, and here
are some thoughts: Regarding what Randy has written above, the system does
not advance past the baseline 25 degrees for the first 15 minutes of
operation, allowing for a pretty good taxi and climbout for an RV. I don't
believe any of the other EI's do this, and I can't say how much difference
it really makes. One does need to be aware of this, as fine tuning mixture
settings for cruise should wait until this period is expired.
Reliability wise I have had two failures. At 342 hours, the left mag died.
It was detected by a higher than normal EGT noted during a 40 minute flight,
and the mag check on the return showed that the left mag was sick (not dead,
but not good either). Unison sent another mag free of charge next day to
me, excellent service. I left for the west coast the next day, and was
thinking about that new mag when over the Rocky Mountains.... At 569 hours,
during cruise flight, the engine hesitated (this tends to get one's
attention) for perhaps 1/4 second, then recovered. The fault light was on
indicating the system was in backup mode (mags running). Once over an
airport, I checked the L/R mags, and the left was completely dead (one tends
to move the switch back quite rapidly when the engine completely stops
firing). Once again, Unison replaced it with a brand new one free of
charge, although this took a couple weeks this time. I suspect if I had
been on the road, they would have overnighted one. I never did learn what
the failure was on the first mag, but the recent failure was caused by a
broken rotor.
So, overall, Unison really sticks behind their product, but two failures of
two different left mags is a little troubling. Ignition systems are not yet
trouble free - anyone's. One person here had to rebuild a lot of his cowl
and baffling when an encoder wheel came off inside his Electroair during
startup. Others have had problems with Lightspeed. It is impossible to say
with any accuracy what anyone's system's reliability is.
Given the performance afforded by EI, mainly fuel economy, I would not be
interested in running my plane on standard mags.
Alex Peterson
RV6-A 584 hours
Maple Grove, MN
http://www.home.earthlink.net/~alexpeterson/
Message 57
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--> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
Jim,
I just did a quick Google search and found this quote. " Mode S has an
altitude resolution of 25 ft, Mode C has an altitude resolution of 100
ft." I think that may be the standard, but that doesn't mean that the
newer encoders couldn't have higher resolution. With that in mind, if
you have a high resolution encoder, I don't see why it wouldn't be an
acceptable source for autopilot altitude information.
Dave
Jim Jewell wrote:
>--> RV-List message posted by: "Jim Jewell" <jjewell@telus.net>
>
>I'm told that if you have serial code output available such as the Dynon
>D10A produces for instance, it will be in 10' resolution.
>Is this True?
>
>Jim in Kelowna
>
>----- Original Message -----
>From: "Dave Bristol" <dbris200@sbcglobal.net>
>To: <rv-list@matronics.com>
>Subject: Re: RV-List: Auto Pilots
>
>
>
>
>>--> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
>>
>>But, the mode C output only has 100' resolution so you'd be all over the
>>sky chasing it. On the other hand, GPS altitude might work pretty good.
>>It's not very accurate but you don't care since all you want is to
>>maintain your present altitude. GPS altitude doesn't change with
>>barometric pressure so you'd have to keep an eye on it, but it should
>>work.
>>
>>Dave -6 So Cal
>>
>>Stein Bruch wrote:
>>
>>
>>
>>>--> RV-List message posted by: "Stein Bruch" <stein@steinair.com>
>>>
>>>Well that's not quite true....it has been done and it's been proven to
>>>work.
>>>Simple Altitude encoded information is all the trim system needs to know.
>>>In reality it's not much different than a servo running an altitude
>>>autopilot.
>>>
>>>I'm not saying it works well or is good, but it has and will work to some
>>>extent. It's just a slimmed down "Altitude hold" on a diet!
>>>
>>>Cheers,
>>>Stein.
>>>
>>>-----Original Message-----
>>>From: owner-rv-list-server@matronics.com
>>>[mailto:owner-rv-list-server@matronics.com]On Behalf Of John
>>>To: rv-list@matronics.com
>>>Subject: Re: RV-List: Auto Pilots
>>>
>>>
>>>--> RV-List message posted by: "John" <n1cxo320@salidaco.com>
>>>
>>>It won't work...I had that dream some time ago...how would electric trim
>>>"know" if you were descending or climbing a bit ? It wouldn't. You need
>>>some
>>>input regarding pressure changes not just aerodynamic forces on the
>>>elevator.
>>>
>>>John
>>>
>>>
>>>----- Original Message -----
>>>From: "Phil Sisson, Litchfield Aerobatic Club" <sisson@consolidated.net>
>>>To: <rv-list@matronics.com>
>>>Subject: Re: RV-List: Auto Pilots
>>>
>>>
>>>
>>>
>>>
>>>
>>>>--> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic Club"
>>>><sisson@consolidated.net>
>>>>
>>>>Hopperdhh@aol.com wrote:
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>--> RV-List message posted by: Hopperdhh@aol.com
>>>>>
>>>>>Has anyone ever tried to use the electric trim servo for altitude hold?
>>>>>I'm
>>>>>not talking about rough air and turbulence, just normal VFR cross
>>>>>country
>>>>>flying. I was thinking of just giving the trim motor a little blip to
>>>>>steer me
>>>>>back to the right altitude. The pulse width could be proportional to
>>>>>the
>>>>>error. I would use a Motorola MC68HC11 processor since I have worked
>>>>>with that
>>>>>one for about 20 years. Pressure input would come from an automotive
>>>>>type
>>>>>barometric pressure sensor with enough amplification to get the error
>>>>>signal
>>>>>big enough for the processor to read it.
>>>>>
>>>>>Any thoughts?
>>>>>
>>>>>Dan Hopper
>>>>>RV-7A (Flying)
>>>>>
>>>>>
>>>>>
>>>>>
>>>>Keep us informed on this.
>>>>Phil RV6 flying
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>
>
>
>
Message 58
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|
| Subject: | Re: links to Super 8? |
--> RV-List message posted by: WFACT01@aol.com
VINCE- I know of one flying but not of a web sight-TOM
Tom Whelan
Whelan Farms Airport
President EAA Chapter 1097
wfact01@aol.com
249 Hard Hill Road North
PO Box 426
Bethlehem, CT 06751
Tel: 203-266-5300
Fax: 202-266-5140
EAA Technical/Flight Advisor
RV-8 IO- 540 LYC READY FOR SUN-100 40-PLUS HRS
S-51 Mustang Turbine (Under Construction)
Message 59
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--> RV-List message posted by: "Nick Nafsinger" <nick@creteaviation.com>
Grey Code outputs at 100' increments, Serial 10'.
As far as an autopilot that controls Altitude via the trim, Chelton is
already doing it. I know they have had some 'issues' but apparently
have worked them out.
Nick
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Dave Bristol
Subject: Re: RV-List: Auto Pilots
--> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
Jim,
I just did a quick Google search and found this quote. " Mode S has an
altitude resolution of 25 ft, Mode C has an altitude resolution of 100
ft." I think that may be the standard, but that doesn't mean that the
newer encoders couldn't have higher resolution. With that in mind, if
you have a high resolution encoder, I don't see why it wouldn't be an
acceptable source for autopilot altitude information.
Dave
Jim Jewell wrote:
>--> RV-List message posted by: "Jim Jewell" <jjewell@telus.net>
>
>I'm told that if you have serial code output available such as the
Dynon
>D10A produces for instance, it will be in 10' resolution.
>Is this True?
>
>Jim in Kelowna
>
>----- Original Message -----
>From: "Dave Bristol" <dbris200@sbcglobal.net>
>To: <rv-list@matronics.com>
>Subject: Re: RV-List: Auto Pilots
>
>
>
>
>>--> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
>>
>>But, the mode C output only has 100' resolution so you'd be all over
the
>>sky chasing it. On the other hand, GPS altitude might work pretty
good.
>>It's not very accurate but you don't care since all you want is to
>>maintain your present altitude. GPS altitude doesn't change with
>>barometric pressure so you'd have to keep an eye on it, but it should
>>work.
>>
>>Dave -6 So Cal
>>
>>Stein Bruch wrote:
>>
>>
>>
>>>--> RV-List message posted by: "Stein Bruch" <stein@steinair.com>
>>>
>>>Well that's not quite true....it has been done and it's been proven
to
>>>work.
>>>Simple Altitude encoded information is all the trim system needs to
know.
>>>In reality it's not much different than a servo running an altitude
>>>autopilot.
>>>
>>>I'm not saying it works well or is good, but it has and will work to
some
>>>extent. It's just a slimmed down "Altitude hold" on a diet!
>>>
>>>Cheers,
>>>Stein.
>>>
>>>-----Original Message-----
>>>From: owner-rv-list-server@matronics.com
>>>[mailto:owner-rv-list-server@matronics.com]On Behalf Of John
>>>To: rv-list@matronics.com
>>>Subject: Re: RV-List: Auto Pilots
>>>
>>>
>>>--> RV-List message posted by: "John" <n1cxo320@salidaco.com>
>>>
>>>It won't work...I had that dream some time ago...how would electric
trim
>>>"know" if you were descending or climbing a bit ? It wouldn't. You
need
>>>some
>>>input regarding pressure changes not just aerodynamic forces on the
>>>elevator.
>>>
>>>John
>>>
>>>
>>>----- Original Message -----
>>>From: "Phil Sisson, Litchfield Aerobatic Club"
<sisson@consolidated.net>
>>>To: <rv-list@matronics.com>
>>>Subject: Re: RV-List: Auto Pilots
>>>
>>>
>>>
>>>
>>>
>>>
>>>>--> RV-List message posted by: "Phil Sisson, Litchfield Aerobatic
Club"
>>>><sisson@consolidated.net>
>>>>
>>>>Hopperdhh@aol.com wrote:
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>--> RV-List message posted by: Hopperdhh@aol.com
>>>>>
>>>>>Has anyone ever tried to use the electric trim servo for altitude
hold?
>>>>>I'm
>>>>>not talking about rough air and turbulence, just normal VFR cross
>>>>>country
>>>>>flying. I was thinking of just giving the trim motor a little
blip to
>>>>>steer me
>>>>>back to the right altitude. The pulse width could be proportional
to
>>>>>the
>>>>>error. I would use a Motorola MC68HC11 processor since I have
worked
>>>>>with that
>>>>>one for about 20 years. Pressure input would come from an
automotive
>>>>>type
>>>>>barometric pressure sensor with enough amplification to get the
error
>>>>>signal
>>>>>big enough for the processor to read it.
>>>>>
>>>>>Any thoughts?
>>>>>
>>>>>Dan Hopper
>>>>>RV-7A (Flying)
>>>>>
>>>>>
>>>>>
>>>>>
>>>>Keep us informed on this.
>>>>Phil RV6 flying
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>
>
>
>
--
Internal Virus Database is out-of-date.
Checked by AVG Anti-Virus.
--
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Checked by AVG Anti-Virus.
Message 60
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| Subject: | Looking for FWF photos. |
--> RV-List message posted by: "DEAN PSIROPOULOS" <dean.psiropoulos@verizon.net>
Hi all:
I'm looking for any and all tips and tricks for everything firewall forward
(wiring, plumbing, etc.). If you have a website with pictures of things
under the engine cowl could you please send me your web addresses off-list?
I'd like to look at as many as possible, it should save time and frustration
and give me some ideas. Thanks.
Dean Psiropoulos
RV-6A N197DM
Into the home stretch
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