pitch control

i. That giving manual control of the propeller pitch as is done in a constant-speed unit where datum is moved manually. In a variable-pitch propeller, the act of changing the pitch of the propeller. The pitch changes are done through pitch-control devices.
ii. The combined cyclic/collective system of a helicopter. See collective and cyclic-pitch control column.
iii. In fixed-wing aircraft, the control effected by the yoke or stick, moving control surfaces to bring about some changes in the pitch.
iv. That giving control of the pitch in a VTOL (vertical takeoff and landing) aircraft at zero or a low forward speed. This normally is effected by the control stick.

单词	pitch control
释义	pitch control pitch control i. That giving manual control of the propeller pitch as is done in a constant-speed unit where datum is moved manually. In a variable-pitch propeller, the act of changing the pitch of the propeller. The pitch changes are done through pitch-control devices. ii. The combined cyclic/collective system of a helicopter. See collective and cyclic-pitch control column. iii. In fixed-wing aircraft, the control effected by the yoke or stick, moving control surfaces to bring about some changes in the pitch. iv. That giving control of the pitch in a VTOL (vertical takeoff and landing) aircraft at zero or a low forward speed. This normally is effected by the control stick.
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