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General control line discussion => Open Forum => Topic started by: Allen Eshleman on July 25, 2017, 07:40:57 PM

Title: CG for Trixie
Post by: Allen Eshleman on July 25, 2017, 07:40:57 PM
I have an old Trixie.  Does anyone know where the CG is for this swept wing plane?
Title: Re: CG for Trixie
Post by: dale gleason on July 27, 2017, 08:39:30 PM
Not many know/remember the "Trixy". The plans show a three inch bellcrank....the rear leadout goes straight out the wing, 90 degrees to the fuselage. The forward leadout leaves the bellcrank at an angle such that it crosses the rear leadout in mid wing and  exits the wingtip behind the rear leadout. The pushrod is connected to the bellcrank on the inside wing, but is curved to exit the trailing edge on the outside wing.

Plans show a Fox 35 and a Veco 21C I think) tank, but, no C/G location. When I build mine for the VSC (in the planning stage for the last 15 years) I will use at least an ounce of nose weight for the first flights...

dg

The kid kneeling holding a red and yellow plane is holding a 'Trixy".....or is it "Trixie"?
Title: Re: CG for Trixie
Post by: Allen Eshleman on July 28, 2017, 04:41:12 AM
Yes, I think the best thing to do is just go fly it.  I expect mine to be nose heavy now.  It has a new nose with heavier landing gear. Also, the new nose is a bit longer, I think. So, I'll just do a flight or 2. As long as it's not tail heavy, it will be manageable.  I'll work from there.  Thanks.  It was a decent flying plane. I started with a Fox 35 which burped at the top of a vertical 8.  It now has an FP 25.  It came to me half built, no plans.  Nice sport plane.  I believe it could do the pattern.  Only problem, the pilot can't.

Thanks
Title: Re: CG for Trixie
Post by: dennis lipsett on July 28, 2017, 04:42:56 AM
I built a Trixie in. 1968 and powered it with an OS 35S. There were no cg problems. It flew reasonably well. Left it at Langly AFB when I finished my enlistment

Dennis
Title: Re: CG for Trixie
Post by: EddyR on July 28, 2017, 11:42:23 AM
I have one and he had several different motors on it and never checked the cg    Always flew the same.  I had one problem that came back each time I flew it.     It would suddenly turn it at me in inside loops. It has adjustable lead outs and they may be to far forward. Plans show th lead outs crossed over each other. I did not do that. Pictures later
Ed