ORIGINAL: jerrymac
I am not familiar with that helicopter, but it is normal for a helicopter with tail rotor blades to drift left when taking off. The tail blades are used to counteract the torque of the main blades and keep the helicopter from spinning, and this in turn causes the helicopter to drift in the direction that the tail blades are pushing it.
Once the helicopter is in the air it will not drift as much since the tail blades are lower than the main blades, which causes it to tilt to the right a little. Keep in mind that when setting up the helicopter, the swash plate must be level, and the center of gravity as close as possible to the main shaft. If the set up is not correct it will never fly properly.
If it is nose heavy or tail heavy it will drift in that direction.
Thank you for the detail explanation regarding to the drift when heli was light on skid. Iam a beginning in electric helicopter. How should Iget the heli to take off ? When Iincreased the throttle slowly while the heli was drifting on the ground, it drifted more faster but still not off the ground !! Should I increase the throttle slowly until the heli is almost light on skid but before drifting and then increase throttle a much more (instead of slowly) to push it up into air ?
Ching-Ho Cheng