Solution Found!
An engine delivers 175 hp to an aircraft propeller at 2400
Chapter 4, Problem 30E(choose chapter or problem)
An engine delivers 175 hp to an aircraft propeller at 2400 rev/min. (a) How much torque does the aircraft engine provide? (b) How much work does the engine do in one revolution of the propeller?
Questions & Answers
QUESTION:
An engine delivers 175 hp to an aircraft propeller at 2400 rev/min. (a) How much torque does the aircraft engine provide? (b) How much work does the engine do in one revolution of the propeller?
ANSWER:Solution 30E Step 1: Data given Power P = 175 hp P = 130497 watts Velocity = 2400 rev /min = (2400 rev/min × 60) × 2/1rev = 251.33 rad/s We need to find the torque provided by the engine We know P = Rearranging the equation we get = P/ Substituting values we get = 130497 watts/251.33 rad/s = 519.2 Nm Hence the torque of the aircraft engine is 519.2 Nm