The essential structure of a certain type of aircraft turn indicator is shown. Each spring has a constant of 40 lb/ft, and the 7-oz uniform disk of 2-in. radius spins at the rate of 10 000 rpm. The springs are stretched and exert equal vertical forces on yoke AB when the airplane is traveling in a straight path. Determine the angle through which the yoke will rotate when the pilot executes a horizontal turn of 2250-ft radius to the right at a speed of 500 mi/h. Indicate whether point A will move up or down.

Transcribed Image Text:

5 in. for C B D