To add a *little* to Keith's comments, I still have the '52 Air Trails and the plans that were offered then, and it varied a touch from the one he flew at the '60 WCs. That '60 WC plane was the one that Ambroid kitted, how accurately I don't know since I have never seen the kit.
The Fox 25 Don used was the '57 version that was built in the .19 case by using a .29 sleeve and piston to bump th e.19 up to .25. I haven't weighed mine to compare , but it is a little bit lighter *I think* and is almost the equal to a "stock" Fox 35. The '57 Fox 25 is a really nice "vintage" stunt engine with a 4-2 break to rival the best Fox 35s.
I remember a story told around that time that mentioned Don painting his Stuka in "non-German" red/white/blue, since it had not been that long since WW II.
Keith, a comment on my post to you above??
Bill <><
Bill,
I did not realize until I read the Aeromodeller article on Don Still's Stuka that his 1960 version flown at the World Championships was different than the 1950 original published in the 1952 Air Trails.
The Jan 1961 Aeromodeller article stated "At the moment the design is in the engineering stage for kitting by the Amnerican Ambroid Company ..." The article also stated "In fact, the design originated in 1950 and has changed only in detail and length of nose."
I checked the magazine plans shown in Air Trails and Aeromodeller:
Stuka nose length, wing LE to prop driver:
1952 Air Trails: 6 1/2 inches
1961 Aeromodeller: 8 3/16 inches
I did not check any other details regarding areas, and tail moment. The airfoil appears to be the same.
So, if the Ambroid kit is baed on the 1960 version, it is not OTS legal. That is probably not earth shaking news because I do not think there are very many Still Stuka models buillt from the Ambroid kit that have been flown in OTS. And I do not believe there would be very many scratch built models from the Ambroid kit plans because I do not think the plans reallly showed full size drawings of the model.
You asked me to comment on your question regarding the Chizler and my Focke Wulf.
I feel that the two Chizlers that I had (particularly the second one - it was lighter) were the best airplanes that I have had. They competed successfully against piped ships, even in the wind, though the piped ships have an advantage in the wind.
My next Classic ship will be my 68/70 Focke Wulf. I have no excuse for not flying my own Classic design other than I had not thought about it before and I wanted to build the several Classic airplanes that I have had over the past several years. That Focke Wulf did everything I wanted except it did not have the blinding corners that people in the Northeast were flying at that time. I can remember that the Focke Wulf did not have the corners or the appearance of turning good corners like the Chizlers I hve flown. That Focke Wulf had fairly small flaps and horizontal tail/elevators compared to current desingns. However, I think a more satisfactory corner can be found in the new Focke Wulf with an adjustable flap/elevator ratio, adjustable leadouts, stiffer pushrods, taped hinge lines (at least on the elevators), and a more powerful engine using the Randy Smith Aero Tiger compared to the OS 35 S. Hopefully, we will find out in a couple of months.
(I still plan on building another Chizler someday. It flies too good not to have one.)
Thanks for asking.
Keith Trostle
Topic: What if you could only use a .35 motor? (Read 13535 times)