Today's Message Index:
----------------------
1. 02:11 AM - Re: ACS MAP Hose (Dan Checkoway)
2. 06:16 AM - Re: Cheap Navaid servo for sale? (Finn Lassen)
3. 06:31 AM - Re: Cheap Navaid servo for sale? (Kyle Boatright)
4. 07:15 AM - AFM Supplement for GPS IFR Operations / Limitation (Richard V. Reynolds)
5. 08:17 AM - Re: AFM Supplement for GPS IFR Operations / Limitation (Mike Robertson)
6. 08:55 AM - Re: ACS MAP Hose (Karen and Robert Brown)
7. 09:10 AM - Re: ACS MAP Hose (Scott VanArtsdalen)
8. 09:11 AM - Re: Cheap Navaid servo for sale? (Scott VanArtsdalen)
9. 09:21 AM - Re: ACS MAP Hose (Bob C.)
10. 09:47 AM - Re: The Mother of all giant scale B-52's (Keith Hedrick OD)
11. 09:47 AM - Simulator Software for KLN90B ??? (Bill Schlatterer)
12. 09:59 AM - Re: RV-8 Empennage - HS-405 edge distance (Charlie Kuss)
13. 10:15 AM - Re: Cheap Navaid servo for sale? (Charlie England)
14. 11:05 AM - Aileron trim (Ed Bundy)
15. 01:25 PM - Lost power on takeoff again (Charles Heathco)
16. 01:32 PM - NavAid Auto pilot servo and head for sale (Bob)
17. 01:34 PM - Re: Lost power on takeoff again (Jim Cimino)
18. 01:41 PM - Re: Lost power on takeoff again (Jerry Springer)
19. 01:45 PM - Re: Lost power on takeoff again (Stewart, Michael (ISS Atlanta))
20. 01:48 PM - Re: AFM Supplement for GPS IFR Operations / Limitation (Kevin Horton)
21. 02:55 PM - Re: Roll your own auto pilot? Re: Auto Pilots (Ed Anderson)
22. 03:14 PM - Re: Cheap Navaid servo for sale? (Finn Lassen)
23. 04:11 PM - Re: Cheap Navaid servo for sale? (Ed Anderson)
24. 04:45 PM - Re: Re: Lost power on takeoff again ()
25. 04:50 PM - Re: Lost power on takeoff again (PASSPAT@aol.com)
26. 05:02 PM - Starter Switch Problem (Tim Bryan)
27. 05:14 PM - Re: Starter Switch Problem (John Ammeter)
28. 05:28 PM - Re: Lost power on takeoff again (David Burton)
29. 05:52 PM - Re: Starter Switch Problem (Dave Bristol)
30. 06:11 PM - Re: Starter Switch Problem (Tim Bryan)
31. 06:22 PM - Re: Confused about IO-360 180hp engines. (Charlie Kuss)
32. 06:35 PM - Re: Starter Switch Problem (cgalley)
33. 07:04 PM - Got Wax? (Kyle Boatright)
34. 07:28 PM - Re: Lost power on takeoff again (Stewart, Michael (ISS Atlanta))
35. 08:28 PM - Re: Lost power on takeoff again (Alex Peterson)
36. 09:23 PM - Re: Lost power on takeoff again (Jerry Springer)
37. 09:55 PM - Re: Cheap Navaid servo for sale? (Finn Lassen)
Message 1
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| Subject: | Re: ACS MAP Hose |
--> RV-List message posted by: "Dan Checkoway" <dan@rvproject.com>
Bob,
FWIW, here's my setup...the ACS2002's MAP sensor is behind the firewall. I
wasn't sure if it's designed to withstand high temperatures, and it was no
sweat to install it behind the firewall. Figured I'd err on the
conservative side.
On cylinder #3 I used the 45-degree AN fitting that Van's called out. From
there I used the hose provided in the FWF kit to run between #3 and the
bulkhead restrictor fitting also provided with the FWF kit. Photo here:
http://rvproject.com/images/2003/20030720_man_press_hose.jpg
If I didn't have Lightspeed ignition, from the firewall fitting I would have
just run tubing between the barbed end on the firewall and the barbed end on
the MAP sensor.
Since I do have Lightspeed ignition, I ran tubing from the firewall fitting,
teed it out, one end to the Lightspeed, the other end to the ACS2002's MAP
sensor. See the photos about 1/2 way down this page:
http://www.rvproject.com/20030729.html
Sounds convoluted, but it's pretty straightforward. Not sure if this is the
info you were after or not. Hope it helps.
)_( Dan
RV-7 N714D
http://www.rvproject.com
----- Original Message -----
From: "Bob C. " <flyboy.bob@gmail.com>
Subject: RV-List: ACS MAP Hose
> --> RV-List message posted by: "Bob C. " <flyboy.bob@gmail.com>
>
> I'm starting to install the ACS Engine Monitor on my TXM-360 (read
> O-360) . . . the MAP Sensor they sent looks like you would just camp
> a hose on it. I planned to come off the engine with a 37 degree
> fitting, but maybe that's overkill?
>
> How did other hook up their MAP to the ACS unit?
>
> Thanks,
> Bob Christensen
> RV-8 to be N678RC - Engine / Panel / Finishing (Slowly!)
>
>
Message 2
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| Subject: | Re: Cheap Navaid servo for sale? |
--> RV-List message posted by: Finn Lassen <finn.lassen@verizon.net>
Jerry Springer wrote:
>--> RV-List message posted by: Jerry Springer <jsflyrv@comcast.net>
>
>Finn Lassen wrote:
>
>
>
>>--> RV-List message posted by: Finn Lassen <finn.lassen@verizon.net>
>>
>>I've been told that a number of people are changing from Navaid to
>>TruTrak and thus have Navaid servos for sale.
>>
>>I'm interested in aquiring a servo (only) cheap ($200 or less).
>>
>>A $75 1/3 scale RC servo was suggested, but apparently does not have a
>>clutch.
>>
>>Any other souces for a cheap servo? (For a home-brewed wing-leveller. I
>>prefer not having springs hindering stick movement.)
>>
>>Finn
>>
>>
>>
>>
>>
>Have you tried the spring setup? It does work very well. I believe that
>most people that are changing to TruTrak
>are keeping the servos and just replacing the gyros.
>
>Jerry
>
Jerry,
I'm having a hard time believeing that springs strong enough to keep
wings leveled in turbulence will not be noticable when doing aileron
rolls and such.
Finn
Message 3
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| Subject: | Re: Cheap Navaid servo for sale? |
--> RV-List message posted by: "Kyle Boatright" <kboatright1@comcast.net>
----- Original Message -----
From: "Finn Lassen" <finn.lassen@verizon.net>
Subject: Re: RV-List: Cheap Navaid servo for sale?
> --> RV-List message posted by: Finn Lassen <finn.lassen@verizon.net>
>
> Jerry Springer wrote:
>
>>--> RV-List message posted by: Jerry Springer <jsflyrv@comcast.net>
>>
>>Finn Lassen wrote:
<<<<snip>>>>
>>>
>>Have you tried the spring setup? It does work very well. I believe that
>>most people that are changing to TruTrak
>>are keeping the servos and just replacing the gyros.
>>
>>Jerry
>>
> Jerry,
> I'm having a hard time believeing that springs strong enough to keep
> wings leveled in turbulence will not be noticable when doing aileron
> rolls and such.
>
> Finn
Finn,
The spring system is unnoticable in flight. That said, it is a trim system
and not a wing leveler.
KB
Message 4
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| Subject: | AFM Supplement for GPS IFR Operations / Limitation |
--> RV-List message posted by: "Richard V. Reynolds" <rvreynolds@macs.net>
Reference AIM 1-1-19, d. General Requirements
For experimental aircraft operating with an IFR GPS, is a FAA Approved
Aircraft Flight Manual Supplement for the GPS required for "legal"
operation?
The Aircraft Flight Manual (AFM) is the new name for the old Pilot
Operating Handbook (POH).
The AFM supplement for the GPS lists operational limitation of the IFR
GPS.
Inquiring minds want to know.
Richard Reynolds
Norfolk, VA, RV-6A, about to fly IFR
Message 5
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| Subject: | AFM Supplement for GPS IFR Operations / Limitation |
--> RV-List message posted by: "Mike Robertson" <mrobert569@hotmail.com>
It may seem somewhat wierd considering you don't need to have an AFM but if
you have an IFR GPS and are using it for IFR then the supplement must be
carried on board the aircraft during IFR ops. that is because it is part of
the STC and is approved.
Mike Robertson
>From: "Richard V. Reynolds" <rvreynolds@macs.net>
>Reply-To: rv-list@matronics.com
>To: rv-list@matronics.com
>Subject: RV-List: AFM Supplement for GPS IFR Operations / Limitation
>Date: Sun, 13 Mar 2005 10:12:54 -0500
>
>--> RV-List message posted by: "Richard V. Reynolds" <rvreynolds@macs.net>
>
>Reference AIM 1-1-19, d. General Requirements
>
>For experimental aircraft operating with an IFR GPS, is a FAA Approved
>Aircraft Flight Manual Supplement for the GPS required for "legal"
>operation?
>
>The Aircraft Flight Manual (AFM) is the new name for the old Pilot
>Operating Handbook (POH).
>
>The AFM supplement for the GPS lists operational limitation of the IFR
>GPS.
>
>Inquiring minds want to know.
>
>Richard Reynolds
>Norfolk, VA, RV-6A, about to fly IFR
>
>
Message 6
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| Subject: | Re: ACS MAP Hose |
--> RV-List message posted by: "Karen and Robert Brown" <bkbrown@ashcreekwireless.com>
I used a bulkhead AN-to-hose barb fitting. I mounted the ACS MAP sensor inside
the cockpit. I'll run the hose coming off the engine to the bulkhead fitting
placed in the firewall, then come off of hose barb side (cockpit side) with tubing
which will connect to the ACS MAP sensor.
Bob Brown
RV7A - wiring
Message 7
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| Subject: | Re: ACS MAP Hose |
--> RV-List message posted by: Scott VanArtsdalen <svanarts@yahoo.com>
For what it's worth... I use the Rocky Mountain MAP sensor, which is
used by several different auto manufacturors. I mounted my on my engine
mount with a couple of adel clamps and it is holding up well in that
environment.
Karen and Robert Brown wrote:
>--> RV-List message posted by: "Karen and Robert Brown" <bkbrown@ashcreekwireless.com>
>
>I used a bulkhead AN-to-hose barb fitting. I mounted the ACS MAP sensor inside
the cockpit. I'll run the hose coming off the engine to the bulkhead fitting
placed in the firewall, then come off of hose barb side (cockpit side) with
tubing which will connect to the ACS MAP sensor.
>
>Bob Brown
>RV7A - wiring
>
>
>
>
Message 8
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| Subject: | Re: Cheap Navaid servo for sale? |
--> RV-List message posted by: Scott VanArtsdalen <svanarts@yahoo.com>
I don't notice my springs in flight. The aerodynamic loads on the
control surfaces pretty much masks the spring tension. The springs just
aren't that strong.
Kyle Boatright wrote:
>--> RV-List message posted by: "Kyle Boatright" <kboatright1@comcast.net>
>
>
>----- Original Message -----
>From: "Finn Lassen" <finn.lassen@verizon.net>
>To: "ax; PROMO" <rv-list@matronics.com.Gecko/20030624.Netscape/7.1>
>Subject: Re: RV-List: Cheap Navaid servo for sale?
>
>
>
>
>>--> RV-List message posted by: Finn Lassen <finn.lassen@verizon.net>
>>
>>Jerry Springer wrote:
>>
>>
>>
>>>--> RV-List message posted by: Jerry Springer <jsflyrv@comcast.net>
>>>
>>>Finn Lassen wrote:
>>>
>>>
><<<<snip>>>>
>
>
>>>Have you tried the spring setup? It does work very well. I believe that
>>>most people that are changing to TruTrak
>>>are keeping the servos and just replacing the gyros.
>>>
>>>Jerry
>>>
>>>
>>>
>>Jerry,
>>I'm having a hard time believeing that springs strong enough to keep
>>wings leveled in turbulence will not be noticable when doing aileron
>>rolls and such.
>>
>>Finn
>>
>>
>
>Finn,
>
>The spring system is unnoticable in flight. That said, it is a trim system
>and not a wing leveler.
>
>KB
>
>
>
>
Message 9
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| Subject: | Re: ACS MAP Hose |
--> RV-List message posted by: "Bob C. " <flyboy.bob@gmail.com>
My install manual says it's OK to mount the MAP sensor on the firewall
. . . it would seem simpler to run the wires along with all the others
rather than a hose through the firewall? I'm I missing something?
Thanks,
Bob
On Sun, 13 Mar 2005 08:49:13 -0800, Karen and Robert Brown
<bkbrown@ashcreekwireless.com> wrote:
> --> RV-List message posted by: "Karen and Robert Brown" <bkbrown@ashcreekwireless.com>
>
> I used a bulkhead AN-to-hose barb fitting. I mounted the ACS MAP sensor inside
the cockpit. I'll run the hose coming off the engine to the bulkhead fitting
placed in the firewall, then come off of hose barb side (cockpit side) with
tubing which will connect to the ACS MAP sensor.
>
> Bob Brown
> RV7A - wiring
>
>
>
>
Message 10
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| Subject: | Re: The Mother of all giant scale B-52's |
--> RV-List message posted by: "Keith Hedrick OD" <khedrick@frontiernet.net>
From cyper future (or a computer malfo), but I had the time right. Not
only that -sent to list by mistake. it was a two screw ups fer one. will
fix it.
Keith Hedrick OD
3LF
RV 6 - 100 hrs newbie
----
Please Note: No trees were destroyed in the sending of this contaminant free
message
We do concede, a significant number of electrons may have been
inconvenienced.
----
==============
DO NOT ARCHIVE
===============
> Da,
>
> Is your computer time a month ahead...or was it a month ahead?
>
Message 11
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| Subject: | Simulator Software for KLN90B ??? |
--> RV-List message posted by: "Bill Schlatterer" <billschlatterer@sbcglobal.net>
Just checking collective knowledge for help. Is there a simulator for the
KLN90B that can be downloaded and used at home to learn the system? It
looks like Shorty's might have something for $5 but wonder if it's even
worth the trouble?
Thanks Bill S
7a Arkansas
Message 12
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| Subject: | Re: RV-8 Empennage - HS-405 edge distance |
--> RV-List message posted by: Charlie Kuss <chaztuna@adelphia.net>
Alan
I ran into this problem on my 8A as well. I asked my local RV guru what
to do. He suggested I make what are called "scab flanges" for the HS-405s.
I simply made new forward flanges out of some scrap 2024-T3 (same thickness
as the rib). Cut the original forward flanges off, and locate and rivet the
scab flanges on. Locate them to obtain proper edge distance as needed. I'll
send you a few photos of this "off list".
Charlie Kuss
>--> RV-List message posted by: alan@reichertech.com
>
>
>All,
>
>I'm working on the RV-8 empennage. Reference drawing 3, you can see where
>the HS-702, HS-405, and HS-801PP all overlap.
>
>After drilling the skin to the skeleton and then disassembling, I notice
>that the hole that goes through those three items does not meet minimum
>edge distance on the HS-405 towards the front edge of the flange (both top
>and bottom). This hole is the one that is in the seamed area of the
>HS-405.
>
>The holes in HS-702 are down the centerline of the flange, so I'm not sure
>where the alignment problem is.
>
>If I were to rebend the front and rear flanges of HS-405 slightly to shift
>the web of HS-405 forward, then I start getting into the edge distance on
>the top and bottom flanges at the rear end instead of the front.
>
>Any thoughts on what's going on here? Has anyone else seen this, and if
>so, how did you correct it?
>
>--
>Alan Reichert
>RV-8 N927AR (reserved)
>Building Horizontal/Vertical Stabilizers
>
>
Message 13
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| Subject: | Re: Cheap Navaid servo for sale? |
--> RV-List message posted by: Charlie England <ceengland@bellsouth.net>
Finn Lassen wrote:
>--> RV-List message posted by: Finn Lassen <finn.lassen@verizon.net>
>
>Jerry Springer wrote:
>
>
>
>>--> RV-List message posted by: Jerry Springer <jsflyrv@comcast.net>
>>
>>Finn Lassen wrote:
>>
>>
>>
>>
>>
>>>--> RV-List message posted by: Finn Lassen <finn.lassen@verizon.net>
>>>
>>>I've been told that a number of people are changing from Navaid to
>>>TruTrak and thus have Navaid servos for sale.
>>>
>>>I'm interested in aquiring a servo (only) cheap ($200 or less).
>>>
>>>A $75 1/3 scale RC servo was suggested, but apparently does not have a
>>>clutch.
>>>
>>>Any other souces for a cheap servo? (For a home-brewed wing-leveller. I
>>>prefer not having springs hindering stick movement.)
>>>
>>>Finn
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>Have you tried the spring setup? It does work very well. I believe that
>>most people that are changing to TruTrak
>>are keeping the servos and just replacing the gyros.
>>
>>Jerry
>>
>>
>>
>Jerry,
>I'm having a hard time believeing that springs strong enough to keep
>wings leveled in turbulence will not be noticable when doing aileron
>rolls and such.
>
>Finn
>
Hi Finn,
I flew my 1st -4 both with & without Van's spring kit. On the ground the
springs will move the stick when you move the trim control. In the air,
I could never tell the difference. My only complaint with Van's system
was that the springs weren't strong enough to completely counter roll
from fuel imbalance.
But.. I doubt you could use springs in an autopilot because it would be
chasing itself constantly in turbulence. Kind of 'auto-PIO'.
I once owned a Thorp T-18 with roll trim/autopilot using a very small
r/c servo driving a tab on the trailing edge of one aileron. There is
obviously an added risk of flutter if you do this but it was never a
problem on the Thorp.
Charlie
Message 14
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--> RV-List message posted by: "Ed Bundy" <ebundy@speedyquick.net>
Actually, I was concerned about this as well, but the spring system is *not*
noticeable in flight for a very simple (once you see it in action) reason.
There are two opposing springs, under tension that hold the stick in place.
So the tension in one spring cancels out the tension of the other. It
really does work very well.
Ed
>
> > >Have you tried the spring setup? It does work very well. I believe that
> > >most people that are changing to TruTrak
> > >are keeping the servos and just replacing the gyros.
> > >
> > >Jerry
> > >
> > Jerry,
> > I'm having a hard time believeing that springs strong enough to keep
> > wings leveled in turbulence will not be noticable when doing aileron
> > rolls and such.
> >
> > Finn
--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Message 15
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| Subject: | Lost power on takeoff again |
--> RV-List message posted by: "Charles Heathco" <cheathco@comcast.net>
I replaced the carb with OH unit, and this morn had the same failure, lost power
4-5 sec into takeoff run. pulled the mixture control to about where it is at
cruise and it started running again. I ran up and did mag checks couple times
with mix at norm and it was ok. I had made two flights after carb change before
this with no problem. One common thing between this and when it happened before
I swapped carb, is it was much warmer than usual both times, and it was following
a long taxie both times as well. Any Ideas? (cut short a very nice morn
for flying) charlie heathco
Message 16
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| Subject: | NavAid Auto pilot servo and head for sale |
--> RV-List message posted by: "Bob" <rpgross@bellsouth.net>
Used 2 year old NavAid system includes servo, head and internal smart
coupler to track your GPS signal. 120 hours since new, will demo in Jupiter,
FL. New $1350, asking $900. Mint condition.
Warmest Regards,
Bob Gross
For the latest F1 Rocket/Synthetic Vision progress, click here...
www.F1-RocketBoy.com <http://www.f1-rocketboy.com/>
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Message 17
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| Subject: | Re: Lost power on takeoff again |
Received-SPF: none
--> RV-List message posted by: "Jim Cimino" <jcimino@echoes.net>
It sounds like it is running too rich, have you confirmed that you only a
slight rpm increase before it shuts down when you pull your mixture?
Jim
Jim Cimino
N7TL
RV-8 S/N 80039
150+ Hours
http://www.geocities.com/jcimino.geo/
----- Original Message -----
From: "Charles Heathco" <cheathco@comcast.net>
Subject: RV-List: Lost power on takeoff again
> --> RV-List message posted by: "Charles Heathco" <cheathco@comcast.net>
>
> I replaced the carb with OH unit, and this morn had the same failure, lost
> power 4-5 sec into takeoff run. pulled the mixture control to about where
> it is at cruise and it started running again. I ran up and did mag checks
> couple times with mix at norm and it was ok. I had made two flights after
> carb change before this with no problem. One common thing between this and
> when it happened before I swapped carb, is it was much warmer than usual
> both times, and it was following a long taxie both times as well. Any
> Ideas? (cut short a very nice morn for flying) charlie heathco
>
>
>
Message 18
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| Subject: | Re: Lost power on takeoff again |
--> RV-List message posted by: Jerry Springer <jsflyrv@comcast.net>
Charles Heathco wrote:
>--> RV-List message posted by: "Charles Heathco" <cheathco@comcast.net>
>
>I replaced the carb with OH unit, and this morn had the same failure, lost power
4-5 sec into takeoff run. pulled the mixture control to about where it is at
cruise and it started running again. I ran up and did mag checks couple times
with mix at norm and it was ok. I had made two flights after carb change before
this with no problem. One common thing between this and when it happened before
I swapped carb, is it was much warmer than usual both times, and it was
following a long taxie both times as well. Any Ideas? (cut short a very nice morn
for flying) charlie heathco
>
>
>
>
Sounds like Vapor lock, check heat sources around your fuel lines and
fuel pump.
Jerry
Message 19
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|
| Subject: | Lost power on takeoff again |
--> RV-List message posted by: "Stewart, Michael (ISS Atlanta)" <mstewart@iss.net>
Sounds too rich Charlie.
Try a t/o at max prm mixture setting
w/ 6k' runway at lzu, you should have plenty of room to verify.
Mike
Do not archive
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Charles Heathco
Subject: RV-List: Lost power on takeoff again
--> RV-List message posted by: "Charles Heathco" <cheathco@comcast.net>
I replaced the carb with OH unit, and this morn had the same failure,
lost power 4-5 sec into takeoff run. pulled the mixture control to about
where it is at cruise and it started running again. I ran up and did mag
checks couple times with mix at norm and it was ok. I had made two
flights after carb change before this with no problem. One common thing
between this and when it happened before I swapped carb, is it was much
warmer than usual both times, and it was following a long taxie both
times as well. Any Ideas? (cut short a very nice morn for flying)
charlie heathco
Message 20
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| Subject: | AFM Supplement for GPS IFR Operations / Limitation |
--> RV-List message posted by: Kevin Horton <khorton01@rogers.com>
STC = Supplemental Type Certificate. Experiments don't have a Type
Certificate, so how can you get an STC, and why would you need one?
Kevin Horton
>--> RV-List message posted by: "Mike Robertson" <mrobert569@hotmail.com>
>
>It may seem somewhat wierd considering you don't need to have an AFM but if
>you have an IFR GPS and are using it for IFR then the supplement must be
>carried on board the aircraft during IFR ops. that is because it is part of
>the STC and is approved.
>
>Mike Robertson
>
>>From: "Richard V. Reynolds" <rvreynolds@macs.net>
>>Reply-To: rv-list@matronics.com
>>To: rv-list@matronics.com
>>Subject: RV-List: AFM Supplement for GPS IFR Operations / Limitation
>>Date: Sun, 13 Mar 2005 10:12:54 -0500
>>
>>--> RV-List message posted by: "Richard V. Reynolds" <rvreynolds@macs.net>
>>
>>Reference AIM 1-1-19, d. General Requirements
>>
>>For experimental aircraft operating with an IFR GPS, is a FAA Approved
>>Aircraft Flight Manual Supplement for the GPS required for "legal"
>>operation?
>>
>>The Aircraft Flight Manual (AFM) is the new name for the old Pilot
>>Operating Handbook (POH).
>>
>>The AFM supplement for the GPS lists operational limitation of the IFR
>>GPS.
>>
>>Inquiring minds want to know.
>>
>>Richard Reynolds
> >Norfolk, VA, RV-6A, about to fly IFR
> >
Message 21
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--> RV-List message posted by: "Ed Anderson" <eanderson@carolina.rr.com>
Hi Bill,
Just got back from week end with Tracy and Laura Crook - great as always.
Yes, I found some code for an "Inverted Pendulum" that looks like it will
provide a basis for the PID code. They do some neat tricks with clock
frequency and sampling rates to make the math (shifts) much quicker.
Yes, the 1/3 scale model servos produce torque equal and greater than that
shown in the autopilot specs on servos - so no problem there. However, I
have not been able to find one with any type of clutch which as you indicate
is desirable.
My initial thoughts on that aspect of the problem is to have the servo push
a rod that goes through a hole in a tab attached to aileron bell crank. The
rod would have springs on both sides of the tab (conceptually similar to
Van's elCheapo spring trim system which I use in my RV-6A). However, there
are some problems with that concept, so don't know if that would work, but
might be worth a try. On the otherhand adapting a magnetic clutch might be
a more elegant way to go.
Thanks for the suggestions
Ed
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com
----- Original Message -----
From: "Bill Dube" <bdube@al.noaa.gov>
Subject: Re: Roll your own auto pilot? Re: RV-List: Auto Pilots
> --> RV-List message posted by: Bill Dube <bdube@al.noaa.gov>
>
> At 08:36 PM 3/10/2005 -0500, you wrote:
> >--> 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.
>
> You can easily find PID code for the PIC or nearly any other
> embedded controller. Use that stock code as the core for your system and
> you will save yourself a ton of programming and de-bugging work.
>
>
> > 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.
>
> That makes sense. Feed in the rate sensor information to the
inner
> loop to keep it stable and reduce the sensitivity to noise on the heading
> input. Easier to do digitally, by the way.
>
> > 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.
>
> Would that have the torque needed? Also, how do you plan to
clutch
> the servo to allow manual over-ride?
>
>
Message 22
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| Subject: | Re: Cheap Navaid servo for sale? |
--> RV-List message posted by: Finn Lassen <finn.lassen@verizon.net>
Thanks Charlie!
This sounds like a very sensible solution. Do you know if, in case of
power loss to the servo, will an R/C servo exert enough hold
(resistance) on the trim tab to prevent tab induced flutter. I know next
to nothing about R/C servos but imagine that if it's geared it should
resist movement.
Could also be an incentive for me to rebuild my crooked left aileron.
(Are you listening Ed Anderson?)
Finn
Charlie England wrote:
>I once owned a Thorp T-18 with roll trim/autopilot using a very small
>r/c servo driving a tab on the trailing edge of one aileron. There is
>obviously an added risk of flutter if you do this but it was never a
>problem on the Thorp.
>
>Charlie
>
>
Message 23
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| Subject: | Re: Cheap Navaid servo for sale? |
--> RV-List message posted by: "Ed Anderson" <eanderson@carolina.rr.com>
Yes, Listening Finn.
Since I do not intend to control roll with an aileron trim tab, flutter is
not one of my concerns. I intend to use an 1/3 RC servo to push a rod which
in turn pushes a tab on the aileron bell crank - so no additional mass out
on the control surface. So perhaps other problems, but don't expect flutter
to be one of them.
Great seeing you again at the Flyin and Tracy's Finn.
Hope you get back from your trip to make it to Sun & Fun.
Made it back to Charlotte from Tracy's in 2 hours 45 minutes, so even had a
small tail wind component to help this day.
Ed
Subject: Re: RV-List: Cheap Navaid servo for sale?
> --> RV-List message posted by: Finn Lassen <finn.lassen@verizon.net>
>
> Thanks Charlie!
>
> This sounds like a very sensible solution. Do you know if, in case of
> power loss to the servo, will an R/C servo exert enough hold
> (resistance) on the trim tab to prevent tab induced flutter. I know next
> to nothing about R/C servos but imagine that if it's geared it should
> resist movement.
>
> Could also be an incentive for me to rebuild my crooked left aileron.
>
> (Are you listening Ed Anderson?)
>
> Finn
>
> Charlie England wrote:
>
> >I once owned a Thorp T-18 with roll trim/autopilot using a very small
> >r/c servo driving a tab on the trailing edge of one aileron. There is
> >obviously an added risk of flutter if you do this but it was never a
> >problem on the Thorp.
> >
> >Charlie
> >
> >
>
>
Message 24
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| Subject: | Re: Lost power on takeoff again |
--> RV-List message posted by: <mmckenna@bellsouth.net>
Charlie,
Check your primer system. If you have not already ruled this out. Leaking primer
pump or valve can cause the richer than normal condition.
Mike Mckenna
> -----Original Message-----
> From: owner-rv-list-server@matronics.com
> [mailto:owner-rv-list-server@matronics.com] On Behalf Of Charles Heathco
> To: rv-list@matronics.com
> Subject: RV-List: Lost power on takeoff again
>
> --> RV-List message posted by: "Charles Heathco" <cheathco@comcast.net>
>
> I replaced the carb with OH unit, and this morn had the same failure,
> lost power 4-5 sec into takeoff run. pulled the mixture control to about
> where it is at cruise and it started running again. I ran up and did mag
> checks couple times with mix at norm and it was ok. I had made two
> flights after carb change before this with no problem. One common thing
> between this and when it happened before I swapped carb, is it was much
> warmer than usual both times, and it was following a long taxie both
> times as well. Any Ideas? (cut short a very nice morn for flying)
> charlie heathco
Message 25
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| Subject: | Re: Lost power on takeoff again |
--> RV-List message posted by: PASSPAT@aol.com
what about vapor lock
Message 26
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|
| Subject: | Starter Switch Problem |
--> RV-List message posted by: "Tim Bryan" <flyrv6@bryantechnology.com>
Listers,
Anybody have a diagram for the OFF-LEFT-RIGHT-BOTH-START key switch. I have
power to the terminal marked "Bat" and no power at the terminal marked "S"
when I turn it to the start position. I have only a hand drawn diagram that
I used. Wondering if it is right.
Shoot, I was gonna fire this thing, what a let down.
Thanks
Tim Bryan
-6 N616TB
Message 27
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|
| Subject: | Re: Starter Switch Problem |
--> RV-List message posted by: John Ammeter <jammeter@comcast.net>
I think there's a wiring diagram in the AS&S catalog.
do not archive
John
On Sun, 13 Mar 2005 17:01:46 -0800 (Pacific Standard Time),
you wrote:
>--> RV-List message posted by: "Tim Bryan" <flyrv6@bryantechnology.com>
>
>
> Listers,
>Anybody have a diagram for the OFF-LEFT-RIGHT-BOTH-START key switch. I have
>power to the terminal marked "Bat" and no power at the terminal marked "S"
>when I turn it to the start position. I have only a hand drawn diagram that
>I used. Wondering if it is right.
>
>Shoot, I was gonna fire this thing, what a let down.
>
>Thanks
>Tim Bryan
>-6 N616TB
>
>
Message 28
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|
| Subject: | Re: Lost power on takeoff again |
--> RV-List message posted by: "David Burton" <dburton@nwlink.com>
Hi Charlie,
Are you running 100LL or mogas?
Just a thought...
Good luck with the troubleshooting!
Message 29
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|
| Subject: | Re: Starter Switch Problem |
--> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
Tim,
Sounds like you have it wired right. You probably have a bad switch or
something else is miswired.
Dave B
Tim Bryan wrote:
>--> RV-List message posted by: "Tim Bryan" <flyrv6@bryantechnology.com>
>
>
> Listers,
>Anybody have a diagram for the OFF-LEFT-RIGHT-BOTH-START key switch. I have
>power to the terminal marked "Bat" and no power at the terminal marked "S"
>when I turn it to the start position. I have only a hand drawn diagram that
>I used. Wondering if it is right.
>
>Shoot, I was gonna fire this thing, what a let down.
>
>Thanks
>Tim Bryan
>-6 N616TB
>
>
>
>
Message 30
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| Subject: | Re: Starter Switch Problem |
--> RV-List message posted by: "Tim Bryan" <flyrv6@bryantechnology.com>
Thanks John,
I don't have a ACS catalog but on your tip I found one at their website.
Looks like I might have missed a ground wire. Don't know why that would
effect it but I will add it.
Found it here: http://www.aircraftspruce
com/catalog/elpages/ignitionswitchkit.php
Thanks
Tim Bryan
-------Original Message-------
From: John Ammeter
Subject: Re: RV-List: Starter Switch Problem
--> RV-List message posted by: John Ammeter <jammeter@comcast.net>
I think there's a wiring diagram in the AS&S catalog.
do not archive
John
On Sun, 13 Mar 2005 17:01:46 -0800 (Pacific Standard Time),
you wrote:
>--> RV-List message posted by: "Tim Bryan" <flyrv6@bryantechnology.com>
>
>
> Listers,
>Anybody have a diagram for the OFF-LEFT-RIGHT-BOTH-START key switch. I
have
>power to the terminal marked "Bat" and no power at the terminal marked "S"
>when I turn it to the start position. I have only a hand drawn diagram
that
>I used. Wondering if it is right.
>
>Shoot, I was gonna fire this thing, what a let down.
>
>Thanks
>Tim Bryan
>-6 N616TB
>
>
Message 31
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| Subject: | Re: Confused about IO-360 180hp engines. |
--> RV-List message posted by: Charlie Kuss <chaztuna@adelphia.net>
Kevin & Kevin,
I was just browsing EBay. I came across an IO-360-B1E sump for sale. It
is a horizontal, rear mount unit, so it definitely WON'T work on an RV.
Charlie Kuss
>snipped
> >Is the M1B the only 180hp engine that will fit into the RV-8 without
> >modifying the plane? Are people buying non M1B engines and making changes
> >to the engines so they meet M1B specs? If so what engines can be bought
> >and converted to the M1B configuration and what engines just cant be
> >converted at all?
> >
> >Argh my head hurts!! Lol your input would be appreciated.
>
>The IO-360-M1A and M1B are the only 180 hp IO-360s that have the fuel
>injection servo mounted on the front of the oil sump. That allows it
>to be used with Van's "horizontal induction" air box, which means you
>get the cowling with the smooth front (i.e. there is no protruding
>inlet for engine induction air intake).
>
>Other 180 hp IO-360s will work, but they have the fuel injection
>servo mounted on the bottom of the oil sump, similar to most
>carbureted versions. You need the cowling with the air induction
>inlet sticking out the bottom. Van really designed this setup around
>a carbureted engine, so there might be a bit of air box rework to
>make it fit - other builders should be able to give a better story
>here.
>
>Looking at the FAA Type Certificate Data Sheet (TCDS) for the IO-360
>engines, it looks like the following 180 hp IO-360s might work:
>
>IO-360-B1B
>IO-360-B1C
>IO-360-B1D
>IO-360-B1F
>IO-360-B1F6
>IO-360-B2E (fixed pitch prop only)
>IO-360-B2F (fixed pitch prop only)
>IO-360-B2F6 (fixed pitch prop only)
>IO-360-B4A
>IO-360-E1A (type 2 Dynafocal mount)
>IO-360-F1A (modifications to allow turbo-charging - find out what
>the mods are before buying this one.).
>IO-360-M1A (front mounted fuel injection and front mounted prop governor).
>IO-360-M1B (front mounted fuel injection and rear mounted prop governor).
>
>Other than the IO-360-M1A and M1B, all the above engines would have
>bottom mounted fuel injection servos.
>
>The following models look like they might cause grief:
>IO-360-B1A - it has Simmonds fuel injection, which is uncommon. I
>suspect you might have additional problems making it fit the airbox,
>etc. But I'm guessing here.
>
>IO-360-B1E - has different oil sump and induction manifolding. This
>might interfere with the engine mount. Further investigation needed.
>
>IO-360-B1G6 - has bed type engine mount. Not compatible with the
>engine mounts that Van sells.
>
>The above info is completely speculative, and is offered without any
>warrantee as to its accuracy. Use at your own risk.
>
>To view the TCDS, go to: http://www.airweb.faa.gov/tcds, then search
>for IO-360. Scroll past the Continental IO-360s to find a link to a
>Textron Lycoming IO-360 (there a gazillion links, one for each model
>of Lycoming IO-360, but they all point to the same TCDS). You'll
>have to click on one more link, then you'll end up viewing the TCDS.
>
>There is a section starting on page 15 that attempts to explain the
>differences between the various models. The explanations can be a
>misleading though, e.g. it says the IO-360-B1A is "Similar to
>IO-360-A1A except has Simmonds Type 530 fuel injector. Does not have
>tuned induction". That is very misleading, as the IO-360-A1A is a
>200 hp, angle-valve engine, and the IO-360-B1A is a 180 hp
>parallel-valve engine. But if you stick with the 180 hp variants, I
>think the story on the differences between models is probably OK.
>
>You can also buy a carbureted O-360, and add Airflow Performance Fuel
>injection. This would be approximately equivalent to an IO-360-B1B.
>--
>Kevin Horton RV-8 (finishing kit)
>Ottawa, Canada
>http://www.kilohotel.com/rv8
>
>
Message 32
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| Subject: | Re: Starter Switch Problem |
--> RV-List message posted by: "cgalley" <cgalley@qcbc.org>
Did you try turning completely to the right and then push in?
The wiring diagram is in the Aircraft Spruce Catalog.
If you go to the starter solenoid. Does the starter engage if you apply
power to the starter terminal. If it has two small terminals, sometimes the
2nd one has to grounded.
Cy Galley - Chair,
AirVenture Emergency Aircraft Repair
A Service Project of Chapter 75
EAA Safety Programs Editor - TC
EAA Sport Pilot
----- Original Message -----
From: "Tim Bryan" <flyrv6@bryantechnology.com>
Subject: RV-List: Starter Switch Problem
> --> RV-List message posted by: "Tim Bryan" <flyrv6@bryantechnology.com>
>
>
> Listers,
> Anybody have a diagram for the OFF-LEFT-RIGHT-BOTH-START key switch. I
> have
> power to the terminal marked "Bat" and no power at the terminal marked "S"
> when I turn it to the start position. I have only a hand drawn diagram
> that
> I used. Wondering if it is right.
>
> Shoot, I was gonna fire this thing, what a let down.
>
> Thanks
> Tim Bryan
> -6 N616TB
>
>
>
Message 33
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--> RV-List message posted by: "Kyle Boatright" <kboatright1@comcast.net>
After 4 years, I think the paint on my airplane has finally cured well enough that
it may be time for a wax job. Anyone got a recommendation for the perfect
wax? Inexpensive, easy to apply, and leaves a nice finish?
I'm hoping someone can recommend a good liquid wax. I simply don't have the time
or energy right now to use one of the paste waxes...
Thanks in advance,
KB
Message 34
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| Subject: | Lost power on takeoff again |
--> RV-List message posted by: "Stewart, Michael (ISS Atlanta)" <mstewart@iss.net>
Oh that's right.... Mogas.
I think he is running that as I recall.
Mike
Do not archive
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of David Burton
Subject: Re: RV-List: Lost power on takeoff again
--> RV-List message posted by: "David Burton" <dburton@nwlink.com>
Hi Charlie,
Are you running 100LL or mogas?
Just a thought...
Good luck with the troubleshooting!
Message 35
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| Subject: | Lost power on takeoff again |
--> RV-List message posted by: "Alex Peterson" <alexpeterson@earthlink.net>
> --> RV-List message posted by: "Charles Heathco"
> <cheathco@comcast.net>
>
> I replaced the carb with OH unit, and this morn had the same
> failure, lost power 4-5 sec into takeoff run. pulled the
> mixture control to about where it is at cruise and it started
> running again. I ran up and did mag checks couple times with
> mix at norm and it was ok. I had made two flights after carb
> change before this with no problem. One common thing between
> this and when it happened before I swapped carb, is it was
> much warmer than usual both times, and it was following a
> long taxie both times as well. Any Ideas? (cut short a very
> nice morn for flying) charlie heathco
Charlie, a couple questions:
Describe the details of what "4-5 sec into the takeoff run" means. Is that
after full throttle? Or after beginning the throttle up? Normal
advancement to full throttle should take about 3 to 4 seconds. Have you
tested your boost pump for its flow output (how long to pump a quart, for
example)? At full throttle, your engine will burn something like a quart of
gas every minute, which is a pretty healthy flow. If you disconnect the
fuel line into the carb and put it into a container, the boost pump should
pump something above a quart per minute. If the boost pump can do this, it
wouldn't seem to be vapor lock. Vapor lock should plague one only when the
boost pump is off, unless the vapor lock is upstream of the boost pump.
Alex Peterson
RV6-A 584 hours
Maple Grove, MN
http://www.home.earthlink.net/~alexpeterson/
Message 36
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| Subject: | Re: Lost power on takeoff again |
--> RV-List message posted by: Jerry Springer <jsflyrv@comcast.net>
Alex Peterson wrote:
> Vapor lock should plague one only when the
>boost pump is off, unless the vapor lock is upstream of the boost pump.
>
>Alex Peterson
>RV6-A 584 hours
>Maple Grove, MN
>
>
>
I don't believe this is necessarily true, the secret here is the fact
that he only got it on a warmer than normal
days and after a longer than normal taxi. Engine compartments can become
extremely hot on long taxis. I may
have missed it in his post but how much power was lost? did the engine
just act like it run out of fuel ?
Was there a witness to either one if the lost power incidents? If it was
rich enough to not run well it would
be putting a lot of smoke out of the exhaust, enough that people would
notice it. If he is running mogas that
only make the vapor lock theory more believable. In a heat soaked
engine compartment it only takes a
moment to boil fuel. I agree with you that a fuel flow test should be
done.
Jerry
do not archive
Message 37
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| Subject: | Re: Cheap Navaid servo for sale? |
--> RV-List message posted by: Finn Lassen <finn.lassen@verizon.net>
I'm not concerned about any additional mass on the aileron - should be
easy to rebalance the aileron to compensate for the slight weight of the
servo, rod and piano hinge (pour a bit of lead into the water pipe). I'm
concerned about the trim tab "flapping" in the wind producing flutter.
I like the trim tab a lot because it eliminates need for servo clutch,
and because I already have two fixed trim tabs compensating for my
twisted wings, which I then could get rid of (the tabs, not the wings :).
Any idea of how long and deep into the aileron I need to make the tab? I
assume the the size of the elevator trim tab would be way too much.
Van's electric aileron trim tab is just a lenght of piano hinge in
extension to the trailing edge, but I imagine that may not be enough for
a wing leveler?
Finn
Ed Anderson wrote:
>--> RV-List message posted by: "Ed Anderson" <eanderson@carolina.rr.com>
>
> Yes, Listening Finn.
>
>Since I do not intend to control roll with an aileron trim tab, flutter is
>not one of my concerns. I intend to use an 1/3 RC servo to push a rod which
>in turn pushes a tab on the aileron bell crank - so no additional mass out
>on the control surface. So perhaps other problems, but don't expect flutter
>to be one of them.
>
>Great seeing you again at the Flyin and Tracy's Finn.
>
>Hope you get back from your trip to make it to Sun & Fun.
>
>Made it back to Charlotte from Tracy's in 2 hours 45 minutes, so even had a
>small tail wind component to help this day.
>
>Ed
>
>
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