Was facing heating issues with motor/esc/tail servo for the last few weeks.
ConfigHK 450 PRO
SuperBrain 40A | Hk 2223 3500Kv | 14T
Quark | JR 3500G
ESC Settings : Low timing | 8 PWM | Governor @ 3000 RPM
Gear mesh was good and no bindings on Tail
But still at the end of 5 mins - the motor was very hot (can't touch more than 5 sec, especially the top area)
Similarly the tail servo was also very hot.
ESC also felt hot, but couldn't touch it since it was under the battery tray
Surprisingly, the battery was never hot (40C zippys)
Tried 13T @ 2800 RPM, but no improvement.
--
Finally, decide to replace motor with Turnigy 2218 3450Kv.
Today morning did a 5 mins test with 13T at 2600RPM.
Unbelieveable - everything seemed okay.
So something wrong with the motor that cause everything to heat up??
So far seems that way - will further test at higher RPMs and confirm the results.
I just hope my servo/ESC/battery are safe and have not been affected (performance wise).