Hi guys,

Just got a used TRex and everything seems to be fine, with the exception of going to FULL POWER. I have everything trimed, the gyro gain is set perfect, blades in line and balanced.

Here is what is being used.

JR 8103 Radio
Align BL25T ESC
New 11.1v 1300Ma battery
Align 420LF motor

I go to power up and when the heli is at half or less power all is fine. This will get me up to about eye level. When I go to give a little more power, it starts shaking (missing power) and then comes down. I have locked the heli to the floor to check the power and when I go above half throttle, the power just quits.

Is the ESC wrong, or what do you think?
Thanks