|BMJR Sky Demon|
With the e20 Sky Demon I had straightened out a warp in the wing and gave it more downthrust. The power portion of the flight looked good but it was stalling in the glide. I put a tiny shim under the trailing edge and the flight looked much better. For my first attempt at towing up the Retro Gnome I had a friend launch it and I ran with some of the string. It went up but as I looked back I was blinded by the sun so did not see the rest of the flight. My friend said it stalled; the towline was still attached by the auto rudder pin. There was some damage to the wing but I tried it with the hi-start and a small amount of stretch. The glider went up fairly straight but the pin did not want to come out, after a few tries I gave up.
|Retro Gnome Good Flight|
|Leading Edge Damage|
That evening I repaired the glider and tried to stretch the rudder line and added a weight to the towline. The next morning before the wind came up I tried again. After several attempts I was still having trouble with the line not releasing at the pin. On one flight it did release and the glide looked really good, just before it landed the DT went off bringing it quickly down. I have since redone the auto rudder line with less tension and using a washer that slips over a pin.
|Polecat X P30|
I have four more planes that are almost done but I am finishing up final details, mainly rigging the DT; Wilbur old time rubber model, Starduster e36 electric, Polecat X P30, and Jetstream towline model. I learned a lot building those models and I asked a lot of questions. I am going to Thank the people I remember giving me suggestions, no doubt I missed some people. In no particular order: Bob Hanford, Dan Berry, Jack Murphy, Hank Sperzel, Hank Nystrom, Dohrm Crawford, Rudy Kluiber, Norm Furutani, Ronnie Espolt, Paul Bradley, Brian Malin, Jim O’Reilly, Don DeLoach, Larry Davidson, Lee Campbell, Mike Myers, Steve Pollina, George Bredehoft, Gary Hinze, Harry Grogan, Chuck Powell, John Barker, Manuel Cisneros, Simon Blake, and Denny Dock. Also a list of the vendors that I used.
Larry Davidson - http://www.modelflight.com/larrydavidson.html - parts
Texas Timers – http://www.texastimers.com mechanical & electronic timers
BMJR Models - http://www.bmjrmodels.com/ Sky Demon Starduster e36
PearlFreeFlight - http://www.pearlfreeflight.com/Home_Page.html Polecat X
Jim O’Reilly Plans - http://www.jimoreillymodelplans.com/ Jetstream & Wilbur
Volare Products - http://volareproducts.com/ Propeller
FAI Model Supply - http://www.faimodelsupply.com/
Starlink Flitech - http://www.starlink-flitetech.com/ Bandburner timers
BSD Micro - http://www.bsdmicrorc.com/ elecronic timers
Everything Hobby – http://www.everythinghobby.com local hobby shop
Retro RC - http://retrorc.us.com/ Retro Gnome
Wilbur - http://scienceguyorg.blogspot.com/2017/01/building-wilbur-nos-rubber-model.html
Retro Gnome - http://scienceguyorg.blogspot.com/2016/12/building-retro-gnome-ff-hi-start-glider.html
Starduster e36 - http://scienceguyorg.blogspot.com/2017/01/starduster-bmjr-e36-build-report.html
Sky Demon e20 - http://scienceguyorg.blogspot.com/2016/12/sky-demon-e20-build-report.html