pitch control


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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.
References in periodicals archive ?
The lawsuit alleges that the combination of excessive weight and maintenance errors relating to the repair of the pitch control system two days before the accident caused the fatal crash.
He said: "Notwithstanding France's superiority today in terms of ball possession and pitch control, this match confirms the overall level in international football.
It has reduced vehicle roll, improved pitch control, reduced bump steer and increased body stiffness."
Another pet peeve I see a lot is when pilots apply the brakes at the end of a long taxi or short-field landing: The nose dips as the tricycle-geared airplane decelerates while the pitch control is ignored.
A vital aspect of wind turbine operation is pitch control, keeping the blades turning at optimum speed.
For example, any time Black Hawk rotor head maintenance is done, the TM requires track and balance of the PC links of the pitch control rods including adjustments.
Compared to the craft's pitch control, the roll rate is much more predictable and stable, about 11 degrees per second at full deflection.
In neutral and acidic conditions, such as in mechanical pulping, the extractives are difficult to remove, and resinous woods are more of a problem in pitch control.
Standard features include single- (+ winding) or twin-winding heads (+/- winding); independent, fully closed-loop control; online variable, pitch control; die and mandrel location for enhanced accuracy; impregnation system as standard; and fully guarded.
I also told the crew and the CATCC rep (our CO) that, while I still had pitch control, the control stick was very stiff in the fore and aft direction.
In making its request EgyptAir cited an incident involving an American Airlines Boeing 767 that experienced pitch control problems as it descended at the end of a Dallas, USA to Paris, France flight in March, according to The Associated Press.