RE: Sky Bolt engine choice, input requested...
Wow! What a blast from the past!
I found a good used OS 91 four stroke
to go on my Sig Sky Bolt & it's wonderful.
I have taken the last 18 months off from
flying RC because I have been working to
finish my full size, but I have been itching
to get back into RC again. Maybe next spring.
Later!
John