Yes, the SAITO .30. Truly a wonderful little engine.
If you want to try a great setup, build an Argus around the .30.
I have had judges tell me that it's about the best flying Argus they've ever seen.
At the last contest I flew it in, it became quite windy and the little plane went through as well as any .60 powered plane that was flying that day.
It even looks great with the engine sticking out from the cowl the way it does.
This combination has become my all-time favorite stunt plane.
AND, by the way, when I first built it, it was 34 ounces and flew just OK. Now, at 39 ounces, it's terrific.
Bob Z.
ps - check out the Zamco spinner.