Translations:KAVAN FT160AR - Instruction Manual/26/en

4. Install your propeller properly (looking from the cockpit of your model, the propeller of an engine installed in the nose rotates clockwise, looking from the front of the model it rotates counter clockwise). Use a proper wrench to tighten the propeller nut. Do NOT use pliers. Four stroke engines and large two stroke ones should use special safety locking propeller nuts.