Whats up with my trex450

[Wheels]

strange really...post crash flights just spooling up...rotors sound like they are powered by an engine thats missing when at mid stick. tail coming round a little as its spooling up...give it a little rudder either way and the head speed ramps up (revs)...stutters a bit, rudder again and up goes the head speed...all this while at mid stick just before lift off...

im lost for ideas...help.

[Wheels]

no one got any ideas....you guys have allways got ideas (usually).

i myself being a lesser mortal in this situation have literally no ideas.?

[Tim Procter]

I would re-program the esc mate, Try again then look further if its still not working right.

Have you checked the connectors from the motor to the esc and lipo connectors, Sounds like somethings not making contact properly.

[Wheels]

check connections and all seems okay. though during re-build i did disconnect one the the 3 motor wires for a point..maybe that was not back in quite right...anyway all fully home now,,speed controller beeping like it should etc...will try spinning it up tommorow now.

thanks.

[Janek]

Did you check the main and tail drive gears for missing teeth ?, and also check the belt. . . . . also check the mesh of the drive gear and the main gear.