Hey folks,

I have a Great Planes kit of a Cap 21. 40 size with a 60" wingspan.

I will be building it this winter and am looking for answers to the following questions.

What engine would you suggest? Also muffler?

I read of a mod to move the landing gear forward of the wing to avoid the dreaded "snap" on takeoff. Is this neccessary? Or as long as I use plenty of takeoff speed is that sufficient?

What other mods will help with the "snap"?

Thanks in advance

Del

I had 2 of these maaaaany years ago. The first one had an OS 45 in it and needed a LOT of lead to balance, nosed over all the time and I think the finished weight was 6+ lbs. Performance was NOT stellar. The second one had an OS .61 ABC and I moved the LG ahead into the fuse and because I needed less dead weight it still weighed about the same. Now I had a fine plane, lots of power and no more nose overs. I never had problems with the dreaded snap maybe because I made sure it was a bit nose heavy. But do yourself a BIG favor and put the landing gear in the fuse for all kinds of reasons and one of the best is that it now will stand on it's own without a cradle.

If I ever built another it would have a .91 4 - stroke in it.


I just noticed that you had this in the 3D forum. There was no such thing when this plane was designed and I'm 99.9% sure it would not do 3D. The plane is too much of a Lady for that.

Is it more of a pattern style plane? Or simply aerobatic?

Thanks,

Del

It's actually both of these. It's been 20 years since I flew mine and believe it or not #2 is still kicking around in one of our basements somewhere. I also had the .60 size ( 72" wing ) and if I could find a N.I.B. kit of the .60 I would buy it in a heartbeat. I would put something like a YS 1.40 in that. They were both excellent flers but simply not 3D stuff.