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New F3A belt driver system from Graupner?

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New F3A belt driver system from Graupner?

Old 12-26-2013, 06:56 AM
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extraline
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Default New F3A belt driver system from Graupner?

http://www.graupner-sj.com/bldcmotor_air/1975

Very light. Who used?
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Last edited by extraline; 12-26-2013 at 07:09 AM.
Old 12-26-2013, 09:46 AM
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Anthony-RCU
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Interesting! About an ounce heavier than a Neu and same KV but max prop 20x15. Only two mounting tabs on the front? What ESC can handle a sensor motor?

Last edited by Anthony-RCU; 12-26-2013 at 09:48 AM.
Old 12-26-2013, 01:49 PM
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Dean Pappas
 
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Hi Anthony,
You can always just ignore the sensors and run the ESC you already have.
Happy New Year to All,
Dean P.
Old 01-09-2014, 01:32 PM
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Originally Posted by Anthony-RCU View Post
Interesting! About an ounce heavier than a Neu and same KV but max prop 20x15. Only two mounting tabs on the front? What ESC can handle a sensor motor?

I might be mistaken but I see two lugs (top and left) what would indicate there are four in total.

volkert
Old 01-09-2014, 02:03 PM
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This is the belt drive Mr. Akiba was using prior to the OS belt drive.
http://www.50products.com/motor/belt...ltspecial.html

There are several different belt drives.
http://www.50products.com/motor/belt...pecialA_E.html
http://www.50products.com/motor/belt...tspecialG.html

Regards,
Henning
Old 01-10-2014, 02:04 PM
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Jetdesign
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Originally Posted by wagen017 View Post
I might be mistaken but I see two lugs (top and left) what would indicate there are four in total.

volkert
Yeah I agree, it's hard to see them all but it looks like the black piece has 8 'ears', 4 for mounting to airframe or mount, and other 4 have the red 'standoffs' to mount to the motor.

I remember seeing a Hacker belt drive awhile back, it was to combine several electric motors to power a giant electric aerobatic plane, similar to this (although what I recall seeing was for A100 outrunners, this is for the C50 which utilizes a reduction as well):
http://static.rcgroups.net/forums/at...estfit1-05.jpg

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