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Old Feb 26, 2004, 02:36 PM
Trapped in California
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United States, CA, Arcadia
Joined Nov 2003
1,829 Posts
Astroflight Firefly

What is the best prop to use with the Astroflight Firefly (brushless), and what typically would be the size and weight of the plane this would successfully power?
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Old Feb 26, 2004, 02:53 PM
Balsa Flies Better!
Stamford, CT
Joined Oct 2000
6,690 Posts
1) The Firefly isn't brushless- it's coreless.
2) Depends on the gearing and the prop. With the 4:1 gearing, I think a 5" prop is typical, with the 16:1 gearing- a 9" prop is closer to it.
3) Airplanes very close to rubber power- this is typically about a 10 watt motor, and probably has less power than an IPS. It's lighter and uses much lighter batteries as well though.

I'm currently building an airplane (Antoinette- not the Sig kit) for the 16:1 motor.

Like a lot of Astro Bob's smaller stuff, these motors really like li-poly as opposed to nickel cells.

Sam
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