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HomeAircraftHelicopterRobbe Cuatro - Millennium - Nova - Dyna-X › YS 91ST gear ration question
11-14-2011 03:22 PM  6 years agoPost 1
Wemo

rrApprentice

Hampton Roads, VA

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Hello Robbe breathen,

I Have a gear ratin question(s). ARe you any of you running a gear ratio of 9:23 to 1 with a YS 91 ST? The reason I asked is because I just read in the manual, as it reads " using gear ratios higher than 9.0 to 1 may result in engine damage to overspeed" . What have been the result for the headspeed?

Does anyone have a 27T clutch bell(aluminum) they want to sell at a good price?

Thanks

"How high do they go? Are those things hard too fly? How much do they cost?

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11-14-2011 03:34 PM  6 years agoPost 2
Wemo

rrApprentice

Hampton Roads, VA

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never mind. I have a 42T that would work with my 26T..that would make it the ration 8:08 to 1 ratio.

"How high do they go? Are those things hard too fly? How much do they cost?

PM  EMAIL  GALLERY  Attn:RR
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HomeAircraftHelicopterRobbe Cuatro - Millennium - Nova - Dyna-X › YS 91ST gear ration question
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