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Old Feb 26, 2004, 02:36 PM
foamflyer is offline
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Trapped in California
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United States, CA, Arcadia
Joined Nov 2003
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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
Megowcoupe is offline
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Balsa Flies Better!
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Joined Oct 2000
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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.

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