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PC Paintbrush Image  |  1996-06-17  |  90KB  |  624x400  |  8-bit (192 colors)
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OCR: HELICOPTER CONTROLS Foot pedals control the direction the Tail Rotor helicopter faces by varying the thrust of the tail rotor, causing the aircraft to yaw Just as in an airplane, a helicopter's yaw is controlled by foot clockwise or counterclockwise. pedals. The mechanism, though, is quite different, since a helicopter has no rudder to control. With only a main rotor, a helicopter would immediately More thrust = spin out of control; it needs a yaw left tail rotor producing its own thrust to counteract the spin. To steer the helicopter, the thrust of the tail rotor is changed in relation to the main rotor. By changing the tail rotor's thrust, the pilot can swivel in place, pointing the Less thrust = nose of the craft left or right. yaw right Yaw left Straight O Yaw right Captions/Links Lift Yaw Thrust Helicopter Controls