Today's Message Index:
----------------------
1. 06:09 AM - Re: Re: wig wag HID lights (rtitsworth)
2. 08:38 AM - Voltage Conversion (Eric M. Jones)
3. 11:23 AM - Pitot tube appreciations (William Crook)
4. 01:16 PM - Re: First Start of my rotary ()
5. 02:00 PM - Re: First Start of my rotary (Hinde, Frank George (Corvallis))
6. 03:46 PM - Re: First Start of my rotary (Bob White)
7. 06:42 PM - Was First Start of my rotary (Ed Anderson)
8. 08:22 PM - Isolated DC-DC Electronics design pointers (Ralph Hoover)
9. 09:02 PM - Runaway trim (Dave Leikam)
10. 09:22 PM - Re: Runaway trim (Kenneth Melvin)
11. 09:54 PM - Re: Runaway trim (B Tomm)
12. 10:22 PM - Re: Runaway trim (William Gill)
Message 1
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| Subject: | Re: wig wag HID lights |
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com [mailto:owner-
>
>.I might consider one light system for recognition and a
>.separate system for nighttime ground illumination. LED/Halogen for
> recognition - maybe wide angle for conspicuity and a spot HID for me to
> see out. Run the wide angle lamps in steady mode while taxiing to be able
> to see around corners better.
>
FYI - Here's a photo of a new Cirrus SR22 G3 which uses small High Power
LED's in the wig tips to do just that (recognition and taxi). The main
Landing light is still in the cowl. The WigWags did not work yet on this
plane (33 hrs), but the factory pilot said they were working on it (EMI
certification ???) The LED's were reported to be a noticeable improvement
during taxiing (unverified).
I've recently purchased some 1500ma K2 Luxon Leds to experiment with.
Results in a week or two. Data sheet link for any techies:
http://www.lumileds.com/pdfs/DS51.pdf
Rick
Message 2
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| Subject: | Voltage Conversion |
I see this subject going around occassionally, usually 12 to 5, 12 to 28, or 28
to 12. I would like to add the critically important parts of the question....
1) Most important--What is the current? This is important because the conversion
technique depends on the current required. If you need milliamps, just add on
the requisite batteries and change them at the annual. If you need amps continuously,
use a little power supply from Astrodyne (my favorite online power supply
store).
2) What is the duty cycle? If you need 100 amps for several seconds, that takes
a big battery. If you need 100 amps for milliseconds, you need a capacitor.
3) Weight? Some techniques are lighter than others. Lighter usually means more
expensive and sometimes less reliable.
"Democracy is the theory that the common people know what they want and deserve
to get it good and hard." -- H. L. Mencken
--------
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones@charter.net
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=116878#116878
Message 3
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| Subject: | Pitot tube appreciations |
Bob,
A big THANK YOU for helping me out with soldering my pitot tube connection. I
received it in the mail yesterday and will install it this weekend. Again, thanks
for your help during a busy time for you. Hope to see you at OSH. Thanks,
Will Crook
Glastar
Waynesville NC
DO NOT ARCHIVE
Message 4
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| Subject: | First Start of my rotary |
Congratulations Chris,
A freshly minted non-smoking wiring system and a smooth running
rotary are proud milestones.
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
Christopher Barber
Sent: Wednesday, May 30, 2007 11:40 PM
To: aeroelectric-list@matronics.com
Subject: AeroElectric-List: First Start of my rotary
Just a quick note to announce the first starts of my 13b rotary
engine in my Velocity SE wired with Bob's Z-14 diagrams. Thanks for the
great info in the book and on this list. It provides a great deal of
piece of mind. If you are interested in more details check out my posts
or those of my buddy David Staten who is helping me in the build, on
www.canardaviation.com or the flyrotary email list. Thanks Bob.
All the best,
Chris
www.LoneStarVelocity.com
Houston, Texas
Message 5
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| Subject: | First Start of my rotary |
Indeed, although the web page is a little out of date as Experimental
Lyclones are now way cheaper than the 34K listed...More like 21 to 24k
for a brand new fuel injected IO360.
The rotary is a fascinating conversion however (not good for a tractor
airplane due to the difficulty in getting long ducts to deal with the
cooling drag, but much more amenable to a pusher design I think.
Good job
Frank
________________________________
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
longg@pjm.com
Sent: Wednesday, June 06, 2007 1:15 PM
Subject: RE: AeroElectric-List: First Start of my rotary
Congratulations Chris,
A freshly minted non-smoking wiring system and a smooth running
rotary are proud milestones.
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
Christopher Barber
Sent: Wednesday, May 30, 2007 11:40 PM
To: aeroelectric-list@matronics.com
Subject: AeroElectric-List: First Start of my rotary
Just a quick note to announce the first starts of my 13b rotary
engine in my Velocity SE wired with Bob's Z-14 diagrams. Thanks for the
great info in the book and on this list. It provides a great deal of
piece of mind. If you are interested in more details check out my posts
or those of my buddy David Staten who is helping me in the build, on
www.canardaviation.com or the flyrotary email list. Thanks Bob.
All the best,
Chris
www.LoneStarVelocity.com
Houston, Texas
href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.
m
atronics.com/Navigator?AeroElectric-List
href="http://forums.matronics.com">http://forums.matronics.com
Message 6
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| Subject: | Re: First Start of my rotary |
Hi Frank,
Better not tell all those guys flying RV's with rotary engines.
Bob W.
On Wed, 6 Jun 2007 20:58:14 -0000
"Hinde, Frank George (Corvallis)" <frank.hinde@hp.com> wrote:
> Indeed, although the web page is a little out of date as Experimental
> Lyclones are now way cheaper than the 34K listed...More like 21 to 24k
> for a brand new fuel injected IO360.
>
> The rotary is a fascinating conversion however (not good for a tractor
> airplane due to the difficulty in getting long ducts to deal with the
> cooling drag, but much more amenable to a pusher design I think.
>
> Good job
>
> Frank
>
> ________________________________
>
> From: owner-aeroelectric-list-server@matronics.com
> [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
> longg@pjm.com
> Sent: Wednesday, June 06, 2007 1:15 PM
> To: aeroelectric-list@matronics.com
> Subject: RE: AeroElectric-List: First Start of my rotary
>
>
> Congratulations Chris,
> A freshly minted non-smoking wiring system and a smooth running
> rotary are proud milestones.
>
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com
> [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
> Christopher Barber
> Sent: Wednesday, May 30, 2007 11:40 PM
> To: aeroelectric-list@matronics.com
> Subject: AeroElectric-List: First Start of my rotary
>
>
> Just a quick note to announce the first starts of my 13b rotary
> engine in my Velocity SE wired with Bob's Z-14 diagrams. Thanks for the
> great info in the book and on this list. It provides a great deal of
> piece of mind. If you are interested in more details check out my posts
> or those of my buddy David Staten who is helping me in the build, on
> www.canardaviation.com or the flyrotary email list. Thanks Bob.
>
> All the best,
>
> Chris
> www.LoneStarVelocity.com
> Houston, Texas
>
>
>
> href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.m
> atronics.com/Navigator?AeroElectric-List
> href="http://forums.matronics.com">http://forums.matronics.com
>
>
>
>
>
>
>
>
--
N93BD - Rotary Powered BD-4 - http://www.bob-white.com
3.8 Hours Total Time and holding
Cables for your rotary installation - http://www.roblinphoto.com/shop/
Message 7
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| Subject: | Was First Start of my rotary |
Ah, Bob, I was going to let Frank continue with his incorrect
impressions about rotary engines.
I guess I shouldn't tell him a rotary powered RV-4 won its class in
the Sun & Fun 100 2003 beating all in the class with an official
average speed of 217.5 mph! Not bad for a fixed-pitch wood prop, a car
muffler hanging underneath (need I say a car engine under the cowl{:>))
and a non too clean airframe. Oh, yes, no cooling problems. I suspect
that is the real reason Sun & Fun cancel the air races{:>).
Also, if you don't tell my 400 hour rotary powered RV-6A it has a
cooling problem, maybe it won't know.
Just for the record, We have rotaries flying in RV-3, RV-4,RV-6,Rv-6A,
Rv-7, Rv-8s and a couple currently in the works rotary powered RV-10
projects ( using the 3 rotor engine). Rotary's in other tractor
installations as well as pusher installations are coming on board. We
have a couple of "standard" cooling configurations that have stood the
test of time for the rotary powered tractor installations and the Canard
folks are also developing successful cooling configurations for the
pushers.
Ooops, this is the Aeroelectric -list, sorry, Bob
Ed.
Ed Anderson
Rv-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com
http://members.cox.net/rogersda/rotary/configs.htm#N494BW
http://www.dmack.net/mazda/index.html
----- Original Message -----
From: "Bob White" <bob@bob-white.com>
Sent: Wednesday, June 06, 2007 6:45 PM
Subject: Re: AeroElectric-List: First Start of my rotary
>
> Hi Frank,
>
> Better not tell all those guys flying RV's with rotary engines.
>
> Bob W.
>
> On Wed, 6 Jun 2007 20:58:14 -0000
> "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com> wrote:
>
>> Indeed, although the web page is a little out of date as Experimental
>> Lyclones are now way cheaper than the 34K listed...More like 21 to
24k
>> for a brand new fuel injected IO360.
>>
>> The rotary is a fascinating conversion however (not good for a
tractor
>> airplane due to the difficulty in getting long ducts to deal with the
>> cooling drag, but much more amenable to a pusher design I think.
>>
>> Good job
>>
>> Frank
>>
>> ________________________________
>>
>> From: owner-aeroelectric-list-server@matronics.com
>> [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
>> longg@pjm.com
>> Sent: Wednesday, June 06, 2007 1:15 PM
>> To: aeroelectric-list@matronics.com
>> Subject: RE: AeroElectric-List: First Start of my rotary
>>
>>
>> Congratulations Chris,
>> A freshly minted non-smoking wiring system and a smooth running
>> rotary are proud milestones.
>>
>> -----Original Message-----
>> From: owner-aeroelectric-list-server@matronics.com
>> [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
>> Christopher Barber
>> Sent: Wednesday, May 30, 2007 11:40 PM
>> To: aeroelectric-list@matronics.com
>> Subject: AeroElectric-List: First Start of my rotary
>>
>>
>> Just a quick note to announce the first starts of my 13b rotary
>> engine in my Velocity SE wired with Bob's Z-14 diagrams. Thanks for
the
>> great info in the book and on this list. It provides a great deal of
>> piece of mind. If you are interested in more details check out my
posts
>> or those of my buddy David Staten who is helping me in the build, on
>> www.canardaviation.com or the flyrotary email list. Thanks Bob.
>>
>> All the best,
>>
>> Chris
>> www.LoneStarVelocity.com
>> Houston, Texas
>>
>>
>>
>>
href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.
m
>> atronics.com/Navigator?AeroElectric-List
>> href="http://forums.matronics.com">http://forums.matronics.com
>>
>>
>>
>>
>>
>>
>>
>>
>
>
> --
> N93BD - Rotary Powered BD-4 - http://www.bob-white.com
> 3.8 Hours Total Time and holding
> Cables for your rotary installation - http://www.roblinphoto.com/shop/
>
>
>
>
>
>
Message 8
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| Subject: | Isolated DC-DC Electronics design pointers |
I have attached a schematic and photo's of the 9VDC ANR supply I
have built for my RV7A (Headsets Inc ANR conversion) I have tested the
supply for basic DC voltage. I added a load of about 60ma. The ripple
looked OK (I do not remember the exact numbers) I will measure again
when it is wired into the plane and running the Headphones. The Headsets
Inc. modules draw about 15ma in a quiet shop rising to about 20ma if I
yell. (Don't know what the neighbors thought!)
I'll report the final results when everything is powered up and
operating. The focus now is on getting the panel wiring finished so the
final skin can go on.
Getting close!!
--
Ralph C. Hoover
RV7A
hooverra at verizon dot net
Message 9
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A few days ago a Citation jet carrying a crew of two and 4 medical
personnel including organ transplant doctors, went down in Lake Michigan
just off shore from Milwaukee, WI shortly after takeoff. The pilot
declared an emergency due to severe control problems and was cleared to
return to MKE. No survivors. First my condolences to the families and
friends. Next, preliminary reports are that the crash may have been due
to "Runaway trim." Our RV-10s have electric trim. Should we or has
anyone installed a trim power disconnect of some sort? I realize that
the forces to overcome full trim on the 10 are not as great as a
Citation, but would this be prudent? After Attending Bob Nuckolls
seminar and hearing his reasons for not installing circuit breakers
which I generally agree with, would this be a reason for a pullable
breaker on this circuit? What do you guys and gals think? Mr.
Nuckolls, how about your thoughts?
Dave Leikam
40496 RV-10
QB Wings
Message 10
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I have experienced a runaway trim in an RV4 (full nose down). I had
installed a pull-type circuit breaker, but there was no time to intervene.
The situation became more manageable when airspeed was reduced. Not a happy
event, but caused by a rare and catastrophic short circuit when the
stick-grip (with trim switch) broke off while inverted.
Kenneth Melvin, N669TJ.
Message 11
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Dave,
You can have a pullable breaker for the trim, but I think that it will be at
the stop before the pilot realizes what's happened. The pullable breaker
will only shut down the motor after the trim is at the extreme position.
Don't quote me but I've read on these lists that landings have been safely
made in RV's with full up and down elevator trim, albeit with much higher
stick forces, but manageable. Anyone may correct me if I'm wrong. I plan
to test it at altitude during the test phase. I'm not flying yet so take
this as opinion only. I have not heard of anyone experiencing runaway trim
in an RV10 yet.
Further, those that fly formation really like (and may require) electric
trim on the stick. Others may comment here.
Bevan
RV7A finishing
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Dave
Leikam
Sent: Wednesday, June 06, 2007 10:01 PM
Subject: AeroElectric-List: Runaway trim
A few days ago a Citation jet carrying a crew of two and 4 medical personnel
including organ transplant doctors, went down in Lake Michigan just off
shore from Milwaukee, WI shortly after takeoff. The pilot declared an
emergency due to severe control problems and was cleared to return to MKE.
No survivors. First my condolences to the families and friends. Next,
preliminary reports are that the crash may have been due to "Runaway trim."
Our RV-10s have electric trim. Should we or has anyone installed a trim
power disconnect of some sort? I realize that the forces to overcome full
trim on the 10 are not as great as a Citation, but would this be prudent?
After Attending Bob Nuckolls seminar and hearing his reasons for not
installing circuit breakers which I generally agree with, would this be a
reason for a pullable breaker on this circuit? What do you guys and gals
think? Mr. Nuckolls, how about your thoughts?
Dave Leikam
40496 RV-10
QB Wings
Message 12
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The following link provides details of another Citation that experienced
runaway trim. In this case, pulling the trim circuit breaker would not
have helped.
http://www.ntsb.gov/ntsb/brief2.asp?ev_id 030724X01192
<http://www.ntsb.gov/ntsb/brief2.asp?ev_id 030724X01192&ntsbno=SEA03FA
147&akey=1> &ntsbno=SEA03FA147&akey=1
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of B
Tomm
Sent: Wednesday, June 06, 2007 11:53 PM
Subject: RE: AeroElectric-List: Runaway trim
Dave,
You can have a pullable breaker for the trim, but I think that it will
be at the stop before the pilot realizes what's happened. The pullable
breaker will only shut down the motor after the trim is at the extreme
position. Don't quote me but I've read on these lists that landings
have been safely made in RV's with full up and down elevator trim,
albeit with much higher stick forces, but manageable. Anyone may
correct me if I'm wrong. I plan to test it at altitude during the test
phase. I'm not flying yet so take this as opinion only. I have not
heard of anyone experiencing runaway trim in an RV10 yet.
Further, those that fly formation really like (and may require) electric
trim on the stick. Others may comment here.
Bevan
RV7A finishing
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Dave
Leikam
Sent: Wednesday, June 06, 2007 10:01 PM
Subject: AeroElectric-List: Runaway trim
A few days ago a Citation jet carrying a crew of two and 4 medical
personnel including organ transplant doctors, went down in Lake Michigan
just off shore from Milwaukee, WI shortly after takeoff. The pilot
declared an emergency due to severe control problems and was cleared to
return to MKE. No survivors. First my condolences to the families and
friends. Next, preliminary reports are that the crash may have been due
to "Runaway trim." Our RV-10s have electric trim. Should we or has
anyone installed a trim power disconnect of some sort? I realize that
the forces to overcome full trim on the 10 are not as great as a
Citation, but would this be prudent? After Attending Bob Nuckolls
seminar and hearing his reasons for not installing circuit breakers
which I generally agree with, would this be a reason for a pullable
breaker on this circuit? What do you guys and gals think? Mr.
Nuckolls, how about your thoughts?
Dave Leikam
40496 RV-10
QB Wings
href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.m
atronics.com/Navigator?AeroElectric-List
href="http://forums.matronics.com">http://forums.matronics.com
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