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Old Jun 25, 2011, 10:04 AM
vienquach is offline
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Chicago, IL
Joined Nov 2009
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14" prop might not be necessary and pushing the motor limit (Infinite A3025-770) if WOT is used a lot.

If ground clearance is not a problem, the APC thin electric 12 x 8 prop would give you plenty of speed and thrust. The APC thin electric 13 x 6.5 gives you more thrust but slower flight speed due to lower pitch (ground clearance issue ??).

I did a static thrust measurement with the Infinite A3025-770 several months ago:

_ Blue Lipo 4s-4000 30C, APC 14x7E prop, 125 oz thrust @ 53A current draw, 127 F motor temp.

The 12x8 would give about 75-80oz of static thrust at approximately 35A. Motor runs barely warm.

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