Hi there everybody

I need some help to understand a few things about propellers

I'm mounting a Suppo BL motor with an 40A ESC and 3s 1800mAh Lipo battery (20C)
on a 800gr (1.7 pounds) aerobatic plane, the BL has these specifics:

<font size="2">- 70g Outrunner
</font><font size="2"><font face="Arial, Helvetica, sans-serif">- Kv: 1100, Rm: 0.125, io: 1.0A, Poles: 14
</font>- Max amps: 18A for 60sec
</font>
Now ...i'venoticed, around the web , and using motocalc and similar software's, that the good choice of propeller is an Apc 10x5 or 11x6 ..... so i went in a shop and bought both
then locking the plane on my table and trying an 80 % thrust for less than 1 minute , i've noticed that with both props , the motor , the esc and batteries becomes quite hot ....
Why ???? what did I do wrong ???

Changing the prop with and old 7x5 APC after 8-9 minutes of 70-80% thrust , electronics is barely warm....
but of course the 7x5 has only a 600-700 max thrust , this won't allow me to do acro with my plane...
Instead mounting a 8x5 GWS i should have a max thrust of 988gr

Which propeller do you suggest ??

By your experience what could i do for it ???

Thanks in advance


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