Translations:KAVAN FT160AR - Instruction Manual/58/en

As starting points, suggested propellers are 14x9-11“, 15x8-10“, 16x6-8“, 17x6“ and 18x6“. For safety, keep your face and other parts of the body well away from the propeller when starting the engine or when adjusting the needle-valve while the engine is running. Remember that the propeller turns through a much wider arc with the larger sized propellers that this engine is capable of driving.