2. A propeller on a gas turbine rotates 64° every 2.70 minutes. What is the angular velocity in rev/s? What is the linear speed of a point at the tip of the blade if the diameter of the blade is 5.37 ft?

Question

2.	A propeller on a gas turbine rotates 64° every 2.70 minutes. What is the angular velocity in rev/s?  What is the linear speed of a point at the tip of the blade if the diameter of the blade is 5.37 ft?

Henry · Answer

a. 64o/2.70min * 1rev/360o * 1min/60s= = 1.1 rev/s. b. C = pi*D = 3.14*5.37=16.9 Ft=5,12 m. The Circumference. b. 64o/2.70min * 1rev/360o * 5.12m/rev * 1min/60s = 5.62 m/s.