Translations:KAVAN Alpha 1500mm - Instruction manual/213/en

Powered and unpowered flight

The model has already been fine-tuned for the unpowered phase of flight. When you turn on the motor your model might tend to pitch the nose up when full throttle is applied. You cannot completely trim out this tendency with any motor-powered glider – just be aware of this characteristic when flying your model. In practice, you might have to make slight elevator corrections to maintain a gentle but positive climb. In some cases, there might be a trim change difficult, and the only cure for this is to modify the thrust line of the motor. In order to reduce the nose up-pitching, you have to increase the down thrust of the motor (by using a card or scrap ply packing pieces). The opposite problem is quite rare, but it is possible that a model correctly set up for the glide requires a lot of up elevator to maintain a climb when power is applied. The cure: decrease the down thrust of the motor.