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

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

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

4. 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
OHP # 4

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