anem8or

I have a Speed 300 motor with a 4.5-1 gearbox, trunning a 7x5 prop. and my temp is 130 F running and 140+ F when the prop stops.

It is being powered by an 8 cell 1800 mAH battery pack.

Is this temp normal, or is it too high?

I also had a bit of arching going on in the motor, is that also normal?

Should I reduce the prop. size, pitch amount, or lower battery count to 7 or 6 cell?

Please Help, I don't want to burn out the motor.

Thanks,

Anem8or.

danleon

My Feedback: (1)

Brushed can motors can run on the warm side. You need to find the motor maximum current draw data, and then measure with a reliable ammeter, Like a Fluke 73. This is how I do it for my 400 can motors.

Hope this helps. These motors don't last forever - fortunately they are not too expensive!

RC_Eflyer-RCU

The speed 300 motors don't like 8 cells, they dont' last long on 8 unless you do a lot of throttle maneagement. At 4.5:1 gear ratio you should be able to run a larger prop, perhaps an 8 x 6 or 9 x 5. Try running 7 cells on those above props.

I used to run 7 x 600 AE's, 5:1 gearbox on a 9 x 6 and 10 x 4.7 prop on my Champion with the Speed 300 and it was an excellent setup. It pulled about 10-11 amps IIRC.

--Paul

anem8or

Thanks a lot for your info.

So if I upgraded to a 400 motor and smaller prop could i use an 8 cell pack?

Thanks

Anem8or

anem8or

bump