An airplane flies at 300 km/h at sea level at 20°C. The propeller diameter is 1.8 m, and the velocity of the air through the propeller is 360 km/hr. Find: ( a) The slipstream velocity relative to the airplane. (b) The thrust. (c) The power input. (d) The power output. (e) The efficiency. (f) The pressure difference across the propeller disk.

An airplane flies at 300 km/h at sea level at 20°C. The propeller diameter is 1.8 m, and the velocity of the air through the propeller is 360 km/hr. Find: ( a) The slipstream velocity relative to the airplane. (b) The thrust. (c) The power input. (d) The power output. (e) The efficiency. (f) The pressure difference across the propeller disk.

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Question

An airplane flies at 300 km/h at sea level at 20°C. The propeller diameter is 1.8 m, and the velocity of the air through the propeller is 360 km/hr. Find: (

a) The slipstream velocity relative to the airplane.

(b) The thrust.

(d) The power output.

(e) The efficiency.

(f) The pressure difference across the propeller disk.

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