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Old 03-31-2014, 04:30 AM   #2
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I assume you mean a GLOW engine of 45 size (7.5cc) ?

Simple .... check out Hobby King or any other general online site for 45 - 50 equivalent E-motors ... and the specs.

EG :

Direct swap in ..

60A ESC, 4 - 5S LiPo, ~13 - 15" prop ...

Personally I would be using a 5S pack and a 12" prop as a 45 Glow is actually not usually a big prop motor. The glow motor would probably be turning about 10,000 rpm on a 11x7 prop ? So you need to use at least 5S on the E-Motor...

A 60 sized motor if you want to be sure of enough power :

Needs 5 - 7S and 60A ESC, 14 - 17" prop.

Probably too much as the prop to load the motor is too big.


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