Andi G
Veteran
Location: Switzerland
| Hi,
I read some previous posts about the YS91 gearing, and most end like "more testing has to be done"...
What's the consence now? I have a robbe Nova, YS91, Funtech HN90 F muffler and the 7.57:1 ratio which I just sold. BBT 70cm Evo FAI and Evo 3D blades (I guess nowbody knows them in the States )
I'm not yet sure whether 7.86 or 8.18 would be better with CP15% - the fuel is thinner than what most US pilots use so there will be less torque than with 20% and an MP2.
What do you think? I would say that 7.86 is a good compromise between high head speeds for FAI, silent hovering and just cruising around, fuel consumption and so on.
I don't run a Governor so overspeeding might be a problem with 8.18 as well. I don't want to get one anyway, one more piece to break...
Regards,
Andi |
