RE: Don Smith Cessna T-50
Jack: I'm currently building a Don Smith Cessna T-50, and am using Zenoah G-26's...with electronic ignition, not magnito's. Should be ample power. I built a similar sized twin recently using 2 G-20EI's. This 2nd twin was a bit lighter than the T-50 but was more than adaquately powered...so I think I'm OK power wise.
Are you building it after a specific plane? I have quite a number of photos I'd be happy to share, as well as sources for other accessories...just letme know.
I'm finishing mine as the "Songbird" from the 50-60's TV show SKY KING...
Murphey