David J. Beaulieu
  • Bangor, ME
  • United States
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David J. Beaulieu's Friends

  • Werner Fourie
  • Jacob Bragg
  • Andrew Gaut
  • Bob Widmer
  • Paul Henry Davis
  • Matt Crosby
  • Joshua Bardell
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  • Nelson Orta
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David J. Beaulieu's Discussions

Cylinder head woe!!

Started this discussion. Last reply by Bob Widmer Sep 20. 8 Replies

Submitted for you reading pleasure...Been having gradually increasing CHT on my #4 cylinder over the past two weeks.  Last flight resulted in a immediate return to the airport at minimum throttle to…Continue

Ray Allen POS-12 wiring Found my answer

Started this discussion. Last reply by David J. Beaulieu Aug 19. 2 Replies

I have the POS-12 laying around so thought I would fabricate mount and linkage to have the position sensor give my Dynon setup a signal for flap position.  The POS-12 is simply a 0-5K resistor pot. …Continue

New Service Bulletin 2021-02

Started this discussion. Last reply by David R Ferrell May 31. 2 Replies

Relates to the throttle position sensorContinue

Unused Fuel pumps and 6 Port Motor Driven Fuel Valve Kit - GONE Gone Gone...

Started this discussion. Last reply by David J. Beaulieu Apr 5. 2 Replies

Two Airtex E8228 fuel pumps, one Pollak 42-300P kit -  cover shipping and packaging and I'll send them out.  These were going to be used with my project and were supplied with the Zenith FWF kit for…Continue

 

David J. Beaulieu's Page

Latest Activity

David J. Beaulieu posted a discussion

Cylinder head woe!!

Submitted for you reading pleasure...Been having gradually increasing CHT on my #4 cylinder over the past two weeks.  Last flight resulted in a immediate return to the airport at minimum throttle to maintain CHT below max limit* (just barely and in a slight descent while setting up for landing.)  *Downside of ECU is that we have no mixture to cool things down with.All this was after trying to isolate/resolve the issue by verifying/troubleshooting probes and a new injector with no improvements…See More
Sep 12
David J. Beaulieu posted a discussion

Ray Allen POS-12 wiring

I have the POS-12 laying around so thought I would fabricate mount and linkage to have the position sensor give my Dynon setup a signal for flap position.  The POS-12 is simply a 0-5K resistor pot.  I have 5V and ground wires from the Dynon EMS as well as the general purpose input pin/wire ready to wire to the POS-12.  The POS-12 has three wires; white/blue, white/orange, and white/green.  Th white/green is the signal wire.I cannot find which leads of the POS-12 accept the positive and ground…See More
Aug 17
David J. Beaulieu posted videos
Jul 29
David J. Beaulieu posted a photo

Sailing the 750

Shutdown on the water trying to "sail" back to a point on the beach. No need due to water/wind conditions but strictly to practice at a skill I need to develop.
Jul 11
David J. Beaulieu posted photos
Jun 29
David J. Beaulieu posted a status
"Three water landings and takeoffs today with perfect weather/wind conditions. Got my currency requirement done!"
Jun 18
David J. Beaulieu posted a photo

float flight

Got the floats installed this week and getting ready for a quick post install test flight now that winds and weather are cooperating.
Jun 17
Bobby Allen Pepper left a comment for David J. Beaulieu
"David, very impressed with and very interested in purchasing a set of brackets for Dynon auto pilot for my Zenith 750. Already have all except brackets. Please email Allen at apepper72@gmail.com. Thanks. N750AP"
Jun 2
David J. Beaulieu posted a discussion

New Service Bulletin 2021-02

Relates to the throttle position sensorSee More
May 23
David J. Beaulieu posted a photo

Evening flight

Took my wife out for a short evening flight in "Sky Turtle" She got a smooth ride and took a nice picture!
May 21
David J. Beaulieu posted photos
May 6
David J. Beaulieu posted a photo

Horizontal Stab Fairing

Finally got around to making some fairings to block off the gap under the stab. Used a #6 screw and nutplate to attach to the top fairing and Scotch brand dual lock fastener along the lower edge. Should blend in well once I get some paint on it.
Apr 26
David J. Beaulieu posted photos
Apr 25
David J. Beaulieu posted photos
Apr 8
David J. Beaulieu posted a discussion

Unused Fuel pumps and 6 Port Motor Driven Fuel Valve Kit - Free

Two Airtex E8228 fuel pumps, one Pollak 42-300P kit -  cover shipping and packaging and I'll send them out.  These were going to be used with my project and were supplied with the Zenith FWF kit for the UL Power engine. Need to start cleaning up in the garage/hangar!Cheers!Dave"Sky Turtle" N826DESee More
Apr 5
David J. Beaulieu posted a status
"Worked on servo mount kit - posted pic in classified section"
Apr 3

Profile Information

Aircraft Model
STOL CH 750
Project Status
Flying
Building From
Kit
Engine installed (or plan to install)
UL Power
Building Experience
Have already built an airplane
Flying Experience
Commercial / CFI
Building and Flying Info / Your Profession / Other Background Info
Retired Military Pilot / Engineer by Education / Retired Commercial Pilot

Loving the "Great North Woods" of Maine
Home Airport (ie. KMYJ)
KOLD (Old Town, ME)

David J. Beaulieu's Blog

A Zenith Builder in Ghana

Posted on March 24, 2018 at 9:30pm 3 Comments

Interesting clip regarding a couple of people mentioned within our forum previously...inspiring!

https://www.liveleak.com/view?t=uLUxz_1521935468

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Comment Wall (14 comments)

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At 12:10pm on September 21, 2021, Bob Widmer said…

Morning David

I'm just finalizing my order to Advanced Flight Systems (thought I'd use them as it will speed up installation of the Dynon package considerably).

I believe I read somewhere that you have a "red box" i.e. a fuel flow transducer in your UL engine/Dynon system - as I understand it you need 2 transducers, 1 to the engine and 1 calculating the return flow so the Dynon calculates actual usage.

Anyway, if I install 2 transducers do I need to, or do I want to, install Zenith's fuel gauges in the tanks?

Cheers

Bob

At 6:34pm on June 2, 2021, Bobby Allen Pepper said…

David, very impressed with and very interested in purchasing a set of brackets for Dynon auto pilot for my Zenith 750. Already have all except brackets. Please email Allen at apepper72@gmail.com. Thanks.

N750AP

At 8:31am on October 6, 2020, Nelson Orta said…

Hi David,

Thanks for wanting to share your knowledge with me.

I’m in your same time zone, anytime that is good for you to call me works for me.

Thanks,

Nelson 

(305) 525-7803

At 7:17am on July 5, 2020, Daniel Booker said…

David,

sorry about delay, not good on this Zenith site!  Looking to get a set of Zenair plans to install my floats. Do you have a set I could purchase/copy?  Thanks,

dan

At 3:28pm on December 22, 2018, Wayne Woloshin said…

Hi David, I am curious about your UL Engine , what was the problem that you have to change the #3 Cylinder . And how many hours on your Engine. Tks Wayne 

At 6:01pm on January 10, 2018, Thomas Jackson said…

David, I saw that you are interested in Datum skis. I have been flying with the skis for 4 years and am very satisfied with them. If you have any questions forward them to me and I will be gald to answer the best as possible.

Tom

At 5:45pm on November 28, 2017, Danal Estes said…

David,

You asked what we were seeing with the bad injector.  The above is typical.  #3 cylinder just was "not tracking" with the others. 

Digging a little deeper, it is a bit hotter than others at idle (lean, where everything should be very rich), gets even hotter if the power is up only a tiny bit (even leaner), and actually "goes cold" when the power is advanced anywhere above about 1500 RPM, because it gets so lean it is not burning. Too lean for the plugs to ignite. 

And... we thought this was a bad injector for a long time.  After chasing down similar problems several times, we came to the conclusion the injectors were fine... that the ECU had an inadequate ground.  

Conclusions:

First, check that all EGTs and CHTs "Track" each other in ALL conditions before first flight. 

Second, check for very, very, very good grounds in an airplane that is so dependant on electronics. DO NOT count on the frame.  Strap and/or "Star" (i.e. home run wires) everything. 

Feel free to ask questions. 

P.S. Graphs produced from Dynon logs via custom software that I wrote.  Feel free to send me a log file if you want it graphed. 

danal (dot) estes (at) gmail (dot) com


At 11:23pm on August 5, 2016, Kurt Satter said…

David,

You can reach me about the charger at ksatter@Verizon.net ...  I can get it off to you by Monday.

At 9:24pm on May 16, 2016, Doug Malloy said…

Hi David. Hey, need to ask you about your experience with the Skytek tank. I talked to Keith at Skytek and watched the Rotax videos and am impressed with the product. Not impressed with the price and not sure about the 1 gal capacity. They say 7 and half minutes at full power for a Rotax engine if you are down to just the header. Assume then for a UL it would be about half that. I plan on a UL350is. I have seen the pics on your installation but do you still think this tank is the way to go?

At 5:25pm on March 17, 2014, Walt Snyder said…

David, too funny, I happened to zoom in on your dog because I kept thinking he really had a short muzzle for a German shepherd, and he looked like a cool mix………..then I saw someone stole his legs…… Pretty cool dog, purebred? I don't see many out here with shepherd markings like that.

Walt Snyder 

 
 
 

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