Lift Production LOW PRESSURE HIGH PRESSURE Level Three 416.01 OHP # 1

The Propeller BLADE HUB ROOT TIP Level Three 416.01 OHP # 2

Propeller Pitch BLADE ANGLE PLANE OF ROTATION LONGITUDINAL AXIS Level Three 416.01 OHP # 3

PITCH The pitch is the forward distance traveled by the propeller in one revolution. It is defined by the blade angle. When the propeller blade is set at a large angle it is called course pitch. When the propeller blade is set at a small angle it is called fine pitch. Level Three 416.01 OHP # 4

TYPES OF PROPELLERS Fixed-pitch Adjustable-pitch Controllable-Pitch Propeller Constant Speed Propeller Level Three 416.01 OHP # 5