I'm a current gasser and have decided to go to electric in order to get my kids involved in r/c flying. I bought the Tensor 4-D with all the recommended equipment. The list includes my JR 8103 tx, Park 370 brushless motor, 20-amp brushless esc, three Hi-Tech HS-55 micro-servos, micro-receiver, and an 860mAH Li-Po battery.

I've built the airplane and hooked all the electrical up, exactly as the directions stated.

My receiver is a four channel. The battery is fully charged. I can get the motor to arm and run in the proper direction. I can't get anything else to work. The receiver is an FM (PPM) receiver, by the way. I'm getting ticked off with this thing.

Everyone around here is gas all the way and can't/won't offer any help.

Can anyone give me any idea as to what I'm doing wrong?

Thanks,

Dan

Can you be more specific about the "can't get anything else to work" part?

Do you mean tht your ESC/motor works fine but the servos don't work at all? Do the servos chatter at all, or not even budge? If the latter is the case, I'd guess you have the servo plugs in backwards...

I ran by the house at lunch time and pulled one of my spare receivers out of the box. I plugged everything up to that and got normal operation out of my rudder and aileron servos with nothing from my elevator servo. I unplugged the rudder and elevator servos from the receiver and plugged the elevator servo into where the rudder was ... result, still nothing from the elevator servo. From that, I think that the rudder servo is dead, right out of the box.

Now, on to the motor. When I plugged it in, I still got an arming tone and rotation in the proper direction; however, the motor now "chatters" and won't accelerate.

Could I have a bad ESC or motor?

Hopefully this will help.

Thank you for replying.

Dan

All brushless motors will chatter a little at startup. Usually you won't even notice it, it's so quick and subtle. The chattering is the ESC trying to figure out which way to run the motor.

Excessive chattering is a timing issue. Either the timing setting is incorrect in the ESC, or you have a bad connection between the motor and ESC. There's no hard-and-fast rule for timing; if the current setting doesn't work, change it to something else and try again.

If your ESC doesn't have programmable timing (very few don't), then you might need a different ESC. The Eflite 20A ESC should work fine with any Eflite brushless motor, though, so you may need to call Horizon and get them to look at it.