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View Full Version : which os-engine 70SZH or 91SXH c-spec ?


Paris
May 01, 2004, 10:00 PM
hi all,

I recently "killed" my TT70H engine in my raptor60, and I decided to try a
Os-Max this time.(they are great in my planes)

the price difference for a 70SZH or a 91SX C-Spec is almost the same,and I'm
having trouble to decide.
I know the gearing should be changed for the 91,and it needs more fuel,
but what engine should I choose? and why? I am not seeking high
performance,I'm just a sport flyer.

thank you in advance.
Paris