electric clutches

JETLAG03

Active Member
Joined
Jul 6, 2019
Messages
147
Location
Virollet 17260 FRANCE
Total Flight Time
300+ flexwing (pendulaire) newly trained on gyrocopter ((autogire)11h)
I am using a high torque opel starter from WOSP

With the 1.4kw and 8.3m resin rotors I achieve 150RRPM disc flat no wind input, just returned for an exchange for the 2.Okw hoping to hit or get near 200RRPM fingers very crossed.

phil
 

robhodgman

Gyroplane Pilot
Joined
Jun 10, 2013
Messages
25
Location
Olympia
Aircraft
Sparrowhawk gyroplane
Total Flight Time
1000 hrs helicopter
Good Morning Rob,

Here is a picture of The Predator’s Denso geared starter from a Toyota.
I am down at the hangar and my log book says I am on starter number five and ring gear number three in 2,071 hours.

I have logged 2,672 landings: lots of the takeoffs are stop and goes so I an not using the pre-rotator.

100 rotor rpm in still air with 30 foot eight and a half chord Sport Rotors.

The radio doesn’t work when I am pre-rotating because the voltage drops below eight volts.

I would stick with the flexible drive and clutch you have now.

People who have worked on their RAF or Sparrow Hawk pre-rotators have regularly seen 200 rotor rpm with 30 foot blades.

The flexible cable is still available as is the bendix and ring gear.

The clutch is not hard to repair if it has been warped and overheated and the pads are easy to replace.
Thanks Vance. Yes, I like the idea of using existing equipment, reconfiguring the drive from engine power to electric. Thanks for the photo.

Rob
 

robhodgman

Gyroplane Pilot
Joined
Jun 10, 2013
Messages
25
Location
Olympia
Aircraft
Sparrowhawk gyroplane
Total Flight Time
1000 hrs helicopter
BTW, I also have 30' 8.5" sportcopter blades.
 

Mike G

Junior Member
Joined
Jun 16, 2005
Messages
1,509
Location
Lillebonne France
Aircraft
Owned Magni M16 now ELA 07
Total Flight Time
550FW + 500 gyro
Looks like a Wagtail rotor, not sure who makes the pump and motor.
 
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