Hi Larry:
That first picture MUST be a government project; four guys standing there with hands in their pockets watching one guy work!
No flying for me today, too much office work. Hoping for next Sat then Sun at Napa.
I went back to my "government job" pretty much as soon as I had lunch!
This was the first 1/2A flights I have flown in about 25ish years. Last one ended in a crash.
The engine ran great even with the weird tank for Jim's "special project". AP .061 with an RSM venturi - pretty good on 10% Powermaster, better on 15% powermaster, WAY better and much faster on Cox Racing fuel from a rusty can I found in my collection from, well, 25 years ago. ~22000 and pretty steady with a Top Flite 5.5-3. Not a huge powerhouse for an .061 but power is not the problem with the airplane we had it on or with Jim's project. With a less radical tank I think it would be a decent replacement for a Medallion .049. It started easily right from the beginning and there was very little break-in. That's a huge improvement over the engine Jim started with, it was hopeless.
It was on a Brodak ARF flying clown, which flew pretty OK once we got the controls slowed down and enough tip weight. But boy, once the wing gives up, it really gives up! The thin pointy airfoil works just like the books say - can't tell the difference until it stalls, a nice soft stall, and then, nothing. The regular stunt airfoils usually do something pretty dramatic and abrupt. This one, it will be doing fine, but then you cross the line, and there's no drama except that the turn radius went up by a factor of 10! And to my surprise, sealing the elevator hinge line made a HUGE difference in the controllability. It was a pretty typical 1/2A twitchy and unpredictable, then we sealed the hinge lines, and even though it was even more sensitive on the controls it was FAR more predictable and Jim and I both did far more respectable flights. Not good flights, but at least less-embarrassing. We both managed full stunt patterns, mostly recognizable but very very large. And Jim timed it, and we were finished in 2:45. Whee!
I did have a few moments of terror when it did something unexpected and I lost sight of it, like exiting the 4-leaf, but we both managed to keep it out of the ground for 4-5 flights, so, successful day.
Brett