Motors Mechanics Main Rotor Tail Rotor Rotor blades Exhaust Systems Field
TECHNICAL
DRAWINGS Go here for complete replacment
part lists and drawings.
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.91 Motor related drive parts:
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7:7.1
Gear sets for large four/two stroke motors
We
recommend this Gearstage for the O.S Max.91
motor,
order number 1922,and
similar powerplants.
The result is unchanged main rotor rotaional speed but lower
motor revs , producing a considerable reduction
in
noise, combined with higher power reserves compared with
.61 motors. A particularly easy method of obtiaining
a
steady , reproducible rotor speed and pleasant overall sound
is to use the mc-heli control speed governer, part
no.
3286.
If you wish to use this ratio you will need to order the
following addtional parts below.
Note: The cooling head is only needed on conversion motors , the
O.S. .91FX-HG has this as STANDARD equipment
and
also uses a different clutch bell and conical
taper collet . Please specify which motor
you have or intend to purchase
before
ordering clutch parts. Also, now available 10:1
ratio gear set for larger up to 1800mm
rotor diameters.
.
Available
in 22, 24 , 26 and 28 tooth
pinions,
or complete Alu bell.
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Long
shaft, non ball bearing.
Four stroke / max speed 12,000 rpm
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Short
shaft / Ball bearing
Low rev clutch/ 2 and 4 stroke
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Ring
Gear Uni-Expert
Special High strength ring Uni-Expert
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