What size speed control?
 

I burnt up the ESC in my mini ultra stick.
I was using a 40A el-cheapo and it went up in smoke.
The motor is a 2814-6 from BP Hobbies, running a 10x5E APC prop.
3S 2200 battery.
It ran quite a bit warm, one could touch it after flying but it was hot. I put a heat
sink on the speed control, don't guess that helped too much.
It lasted probably 12 - 15 flights before croaking.
The BP website indicates that this should be an adequate size
ESC for this motor.
I have added more cooling to the MUS - a "scoop" on top of the battery hatch.
Any thoughts?
Buy a better/more expensive ESC?
Brad

RE: What size speed control?
 

It should have been big enough, but..... el cheapo ESCs are often not up to their rating.

Here is a posting from RC Groups:

I like cheap ESCs too, but I also like some minimum level of quality. If you go for the lowest price ESCs, you should derate them to maybe 70-80% of their stated capacity and never run them above that.

For my money, the Hobbywing Pentium ESCs (and their rebranded cousins, such as the Turnigy Plush/Sentry, EMAX, Don's RC, and others) are the best value. I've had over a dozen over the last few years, from 6A to 25A, and only one ESC has ever failed on me (10A, in flight, for unknown reasons). I also have the program card, that works across all of the compatible ESCs and makes it a no-brainer to set the various options.

RE: What size speed control?
 

Thanks,
I will get another 40A one, try a different brand.