A2208-12 1800kv What Prop?

by Donald
(Windsor, NC)

The motor I have is A2208-12 1800kv, that’s all I know. I have used the 9x5 and 8x4 props on it. I ran it with a 11x6 but after 30 sec the ESC was warm.
What is the best prop for a foam plane 14oz in the air. Also the same motor can I put a 7x4 on it for a pusher jet?

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A2208-12 1800kv What Prop?

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Feb 11, 2009
 A2208-12 1800kv What Prop
by: Anonymous

Matching props to electric motor set ups is always a bit of trial and error. Personally I'd recommend putting the model data through the MotoCalc program (www.motocalc.com) for a choice of best recommendations.
Also this post at rcgroups - http://www.rcgroups.com/forums/attachment.php?attachmentid=1595512 - may be of use, there's a comprehensive test of different props for that motor but, again, it's going to be trail and error to see which works best with the model.
May 11, 2010
 High Kv motors
by: Roger-A

Your Prop ideas are much too large for a motor with Kv=1800. With these conditions look to use 6" or less with 3S and 7" with 2S batteries. If you want to swing large props choose a motor with a Kv of 1200 or lower.

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