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Old Oct 13, 2012, 07:18 PM
jackerbes is offline
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Jack
USA, ME, Ellsworth
Joined May 2008
18,101 Posts
Quote:
Originally Posted by manuel v View Post
with this numbers, this motor is only good for around 180 watts.
around only 90-95 watts out in the propeller, the rest is heat.


Manuel V.
And if the rest is heat, would that mean the motor should be getting hot?

One of the reasons I was testing with that APC 10 x 14 was because the motor was not even getting warm. That is with the eLogger temp sensor in direct contact with the windings and checking with my fingers too. There is no doubt or confusion at all that the motor was not getting hot.

At any rate, tomorrow I'm going to go through three props in the size range I think I want to use on the motor and get new data just make sure I have nothing mixed up.

@ yomgui,

The numbers on the no loads tests are as follows, I did those several times, the numbers are the averages for 8 to 15 seconds at continuous full throttle, taken with the eLogger:

no load = 10,014 RPM 12.47V, 1.92A = 803.05 kV

no load = 9,922 RPM, 12.36V, 1.86A = 802.8 kV

Jack
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