What term describes the distance a propeller advances in one revolution with no slip?

What term describes the distance a propeller advances in one revolution with no slip?

• A. RPM
• B. Diameter
• C. Pitch
• D. Efficiency

Answer: (C)

Pitch is the distance a propeller would move forward in one revolution if there were no slip. It’s a geometry measure, usually given in inches per revolution, that describes the theoretical axial advance of the blade. RPM tells you how many revolutions occur each minute, but it doesn’t specify how far you’d travel per revolution. Diameter is the size of the propeller and affects thrust and water flow, not the distance advanced per turn. Efficiency is about how effectively power is converted to thrust, not a distance per revolution. In practice, water slip means the actual forward distance per revolution is less than the pitch, but pitch remains the fixed reference for the ideal advance per turn.

Pitch is the distance a propeller would move forward in one revolution if there were no slip. It’s a geometry measure, usually given in inches per revolution, that describes the theoretical axial advance of the blade. RPM tells you how many revolutions occur each minute, but it doesn’t specify how far you’d travel per revolution. Diameter is the size of the propeller and affects thrust and water flow, not the distance advanced per turn. Efficiency is about how effectively power is converted to thrust, not a distance per revolution. In practice, water slip means the actual forward distance per revolution is less than the pitch, but pitch remains the fixed reference for the ideal advance per turn.