Align Dominator BL850MX Super Hot

[JDubb]

I have the Align BL850MX motor with the Phoenix edge esc on my Trex 800. I noticed that the motor gets super hot after about 5 minutes of flight. Is this normal or do I need to be concerned? My head speed on normal mode is 1750, stunt 1 1850 and stunt 2 1950.

[Woodsta888]

Just bought a TREX 800 myself and have an offer on an 850MX. But I do know you need to change the gearing. INstead of the 110T main you need 112T. The pinion needs to be a 12T. You got these?

Dont know how much differnce these make for temps.

My Q in addition to the OP is that if I do change the gearing DO I NEED to get the tail drive gear and swap out both the front and back sets of tail gears?

[JDubb]

I have the 112T main gear and 12T pinion on my 800. To answer your question about the tail drive, you don't need to swap out the tail gearing.

[jsbach#1]

esc settings I use 12 frequency and 10ish gov gain on a castle. They land warm for sure, how hot and what kind of flying.

[JDubb]

Originally Posted by jsbach#1

esc settings I use 12 frequency and 10ish gov gain on a castle. They land warm for sure, how hot and what kind of flying.

My pwm rate is 12khz and I'm using 6 gain on my esc. No hard core 3d just regular circuits around the field. It's hot to the touch after flying for about 4 minutes.

[jsbach#1]

ya thats normal, don't sweat it. After hard 3d my friends is hot enough you can just touch it for a nano second, impossible to keep fingers on it. Been like that for years.

[nmdesertracer]

You got to remember when you land and hit TH the motor expels heat to the motors can/outside. So while in flight its actually operating at a cooler temp do to the air going through the motor.

[JDubb]

Thank you all for the info!

[Mike Padron]

I had similar heat issues/concerns. Reducing motor timing to low (0) and PWM to 8 Khz lowered the temps on the motor, ESC, and batteries.

FYI, I run VBAR GOV at 1800, 1900, and 2000.

Cheers,

Mike