Help please
05-01-2014 | 08:51 AM
#1
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Help please
I have a blade sr and for some reason i can not trim out the esc so that my heli wont stop spinning to the left. When i try to hover the heli spins all most as fast as the blades i have already replaced the esc due to a burn out. Anybody got any ideas, i am lost as to what could be wrong.
Thanks
Thanks
05-01-2014 | 10:45 AM
#2
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Ok, let get some things straight so you get the answer you need intead of 15+ views and no replies....
The ESC controls the motor. On your case, where you a have two electric motors (a main motor, and a tail motor) you should have 2 ESCs controlling the motors. Keep in mind the ESC could be built into the controlling board.
A gyro controls the torque of the helicopter by doing one of two things. On fixed tail rotor helis, the gyro increases or decreases the input to the tail ESC to increase or decease the speed of the fixed blade tail rotor. On variable pitch tail rotor helis, the gyro will send a signal to the tail rotor servo to change the angle of the blades of the tail rotor. This controls the torque of the helicopter and also controls the left and right rotational movement.
If your tail rotor is spinning properly, it seems to me that your problem might not be the ESC but a gyro problem. Your gyro might be programmed incorrectly and may be givving the tail rotor the wrong inputs. You might want to start by reversing the gyro and see what happens from there. Increasing the sensitivity of the gyro amy also help if the gyro is not reversed.
DO NOT DO THIS PART IF YOU ARE READING THIS AND OWN A HELICOPTER BIGGER THAT THE EXACT ONE BEING DISCUSSED HERE.
Since this is a small helicopter, you might want to hold it in your hand and try to feel the torque as it is being generated by the helicopter. See if there is any decrease in torque from the tail rotor. Move the rudder stick on the transmitter and feel the torque generated. By doing this you might be able to feel if the gyro is reversed, or if you need to increase the sensitivity. Or if the tail rotor is not spinning, you might need to replace the control board.
Hope that helps a little and please post any observations or results you get.
Rafael
The ESC controls the motor. On your case, where you a have two electric motors (a main motor, and a tail motor) you should have 2 ESCs controlling the motors. Keep in mind the ESC could be built into the controlling board.
A gyro controls the torque of the helicopter by doing one of two things. On fixed tail rotor helis, the gyro increases or decreases the input to the tail ESC to increase or decease the speed of the fixed blade tail rotor. On variable pitch tail rotor helis, the gyro will send a signal to the tail rotor servo to change the angle of the blades of the tail rotor. This controls the torque of the helicopter and also controls the left and right rotational movement.
If your tail rotor is spinning properly, it seems to me that your problem might not be the ESC but a gyro problem. Your gyro might be programmed incorrectly and may be givving the tail rotor the wrong inputs. You might want to start by reversing the gyro and see what happens from there. Increasing the sensitivity of the gyro amy also help if the gyro is not reversed.
DO NOT DO THIS PART IF YOU ARE READING THIS AND OWN A HELICOPTER BIGGER THAT THE EXACT ONE BEING DISCUSSED HERE.
Since this is a small helicopter, you might want to hold it in your hand and try to feel the torque as it is being generated by the helicopter. See if there is any decrease in torque from the tail rotor. Move the rudder stick on the transmitter and feel the torque generated. By doing this you might be able to feel if the gyro is reversed, or if you need to increase the sensitivity. Or if the tail rotor is not spinning, you might need to replace the control board.
Hope that helps a little and please post any observations or results you get.
Rafael
