strong 70ish two stroke

No such thing as too much!!! The OS 90 Fx weighs essentially the same as the 61 and fits the same mounting pattern. I'd use it before a 60 size motor. Tower has a .76 and GMS has one aboutthat size too. It may even be the same engine, just a different name in the casting. Iv'e heard that before. OS has a 70 heli engine but it's a bit pricey.
Matt

I had a sport cap for a while....never actually flew it but they are a tad on the heavy side....about 7.5 lbs I think with only 600inchish of wing area. Point being a .90 would work just fine. I had a GMS .76 that was a decent running engine an would be a good choice for this plane. Dont plan on doing any 3D with it though. :wink:

just got back with a os 91 fx forgot the pits muffler whats a good free flowing pitts for it yea i loved my old one it would harrier roll great hovered good wish it had ailerons like the bme maniac

i think the real question is do you really want a "sport" cap :?

yea i know shaking head i loved my old one :lol: