A business transport aircraft with a cruising speed of 300 knot at 26 000 ft employs two 1200-hp turboprop engines. A regular four-blade composite prop is going to be used for each engine. Assume C_LP = 0.35, AR_P = 9.

(a) Estimate the propeller diameter for this engine.

(b) What would be the propeller rotational speed (in rpm) for this cruising flight?

(c) The engine shaft rotational speed is 5200 rpm. What gearbox ratio must be employed?

PLEASE EXPLAIN IN DETAIL. THANK YOU.

Question

A business transport aircraft with a cruising speed of 300 knot at 26 000 ft employs two 1200-hp turboprop engines. A regular four-blade composite prop is going to be used for each engine. Assume C_LP = 0.35, AR_P = 9.

(a) Estimate the propeller diameter for this engine.

(b) What would be the propeller rotational speed (in rpm) for this cruising flight?

(c) The engine shaft rotational speed is 5200 rpm. What gearbox ratio must be employed?

PLEASE EXPLAIN IN DETAIL. THANK YOU.

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