I was out of the hobby when the SF series of OS engines was popular. I bought a used one in decent condition a while back, but haven't used it. What is it like? Is it stronger than the FSR it replaced? Is its successor significantly stronger? Just curious.
I know that the SF/RF series of .61 sized engines were intended to lug large props, but I haven't heard anything like this about the .46SF ABN engine, which is what I have. What's the deal? TIA
Ed Cregger
I have one that has been on several planes, Personally I can't tell any difference in performance between it and a 46FX. I usually fit it with an APC 11x5 prop to suit the way I fly.
YMMV
bob
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Thanks, Bob. That's encouraging.
I still have the FX series to add to my OS collection too. I wonder if they made a ringed version of the .46 FX?
Ed Cregger
It's a great engine, similar in performance to the .46 AX. I still have one on my 19 year old Super Kaos and it really winds up on a 10x6.
Dave
Thanks, Dave.
Ed Cregger
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