Those are some interesting bits of history from your life, Bill, thanks for sharing. Yes, I remember those 18" wingspan 1/2-A's. After the engine quit, they'd more or less just mush and fall out of the sky without much glide. I still have an unbuilt Scientific Piper Cub Cruiser and a Sterling Beginner's Hellcat. Latest acquisition of a few years ago was Estes Star Wars X-Wing and Y-Wing .049 kits.
I gather then that the OK Cub is probably okay, will know more on its maiden flight. I also have a Goldberg Little Toot with one of the last Testors McCoy .049 with black mount/tank (late 1970's) I built some time ago. AFAIK
, performance of the later McCoys was on par with a Cox Babe Bee. Will know more when I maiden it also.