A three-blade propeller of a diameter of 1.5 m has a rotational speed is 60 Hz, the activity factor AF is 200 and its static torque coefficient is 0.05. The propeller’s integrated lift coefficient is 0.3 b) Calculate the velocity downstream of the propeller and its blade average drag coefficient while the propeller is mounted on a stationary rig. c) The same propeller engine while flying, has a propulsive efficiency of 0.8 and a thrust coefficient that is 2/3 of its static value. Calculate the propeller advance ratio and flightspeed.
A three-blade propeller of a diameter of 1.5 m has a rotational speed is 60 Hz, the activity factor AF is 200 and its static torque coefficient is 0.05. The propeller’s integrated lift coefficient is 0.3 b) Calculate the velocity downstream of the propeller and its blade average drag coefficient while the propeller is mounted on a stationary rig. c) The same propeller engine while flying, has a propulsive efficiency of 0.8 and a thrust coefficient that is 2/3 of its static value. Calculate the propeller advance ratio and flightspeed.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A three-blade propeller of a diameter of 1.5 m has a rotational speed is 60 Hz, the activity factor AF is 200 and its static torque coefficient is 0.05. The propeller’s integrated lift coefficient is 0.3 b) Calculate the velocity downstream of the propeller and its blade average drag coefficient while the propeller is mounted on a stationary rig.
c) The same propeller engine while flying, has a propulsive efficiency of 0.8 and a thrust coefficient that is 2/3 of its static value. Calculate the propeller advance ratio and flight
speed.
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