Thread: Discussion MJX-F45 Single Rotor FP
View Single Post
Old Sep 05, 2012, 12:09 PM
Rollmops67 is offline
Find More Posts by Rollmops67
Eternal beginner
Rollmops67's Avatar
France, Alsace, Strasbourg
Joined Jun 2012
673 Posts
Quote:
Originally Posted by Stoersender View Post
Some time ago word was going around that a heat sink won't be able to lower the heat significantly.
Today I measured the temperature of two more flights, giving a total amount of 6 times flying with heatsinks installed head and tail.
It does help a lot! Not only during the flight, but the cool-off effect after landing is also much faster...
I didnt look at the temperature at each flight. But the head + tail motor are still running smooth after a total of 48 flights.
Hell Störsender, the word was from me !
Of course the heatsink helps to lower the temp, but essentially at the outside of the motor (housing and magnets of the stator)
But what gets the hotest are the rotor and the brushess, wich are not in contact with the heatsink, and are therefore just marginally cooled by the heatsink.
On my first F45, both motors have heatsinks, tail motor died after 50 flights, and main motor after 55 flights.

But again, just my 2 cents
Rollmops67 is offline Find More Posts by Rollmops67
Reply With Quote