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HomeAircraftHelicopterHIROBOHirobo Freya › Gear ratio recommendations on Freya
02-03-2010 06:48 PM  8 years agoPost 1
cowetachopper

rrApprentice

Newnan, Georgia

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What gear ratio should I be using for my Freya with an OS.91SZ and 690's on it?

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02-03-2010 06:54 PM  8 years agoPost 2
Dr.Ben

rrMaster

Richmond, VA, USA

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11/91 for tight(er), hard(er) 3D and 12/95 for big air, more FAI style aeros.

Do NOT use 11/93.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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02-03-2010 07:07 PM  8 years agoPost 3
cowetachopper

rrApprentice

Newnan, Georgia

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Thanks alot! I was running a YS till I got my new OS and wasnt sure if there was a change.

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02-04-2010 05:20 PM  8 years agoPost 4
John Benario

rrVeteran

Las Vegas

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I don't know if you mistyped, but if your OS is the SZ rather than the HZ you should stay with the YS. The SZ has a terrible vibration issue.

JOhn Benario

Team highest quality
Futaba radios
Cool Power fuel
John's Ultimate building school

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02-09-2010 03:33 AM  8 years agoPost 5
cowetachopper

rrApprentice

Newnan, Georgia

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No i did not mistype. I used to have YS. Heli had been without an engine for a little while and bought a new OS91SZ pumped.

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