I'm glad to hear your YS is running well. Yes, they are very powerful indeed. They will almost turn the same prop as the Saito 180. I love YS engines and have three 120AC's sitting here for future projects. OK, I better change the subject before we get the "slimer" police after us. . . . .
I'd love to see some pics of your Skybolt. . . . .
. Speaking of Skybolts, a friend of mine sent me a couple of pictures the other day of Hanno Prettner and his Skybolt at the TOC when they were held near where we live.