pitch control


Also found in: Wikipedia.

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 ?
Next time you're in cruise flight, apply gentle nose-down pressure on the pitch control to establish, say, a 500-fpm descent.
Mills can readily monitor this ester pitch:acid pitch ratio and use it as a gauge for evaluating the potential for pitch outbreaks and adjustments to the pitch control program.
iPod remote controlled Wireless PA System includes a video-out, with which you can watch DVDs (plug-in a projector or other video device), a carrying case, a built-in anti-shock DVD/CD/MP3 disc player with pitch control, and USB.
At the published speed, does moving the pitch control aft raise the nose?
Lawsuits are also being filed based on the paper industry's use of asbestos as a retention, drainage and pitch control agent prior to the mid-1960s.
Standard equipment includes a UHF 8-channel diversity internal wireless receiver (with choice of mic and transmitter,) a CD/RW/MP3 disc player with pitch control plus SD card slot and USB input.
Through technology, we will advance the performance of these machines with our fourth generation blades, augmented with improved pitch control systems, and by introducing carbon fiber in a unique industry application.
Although the tail normally is thought of as keeping things in balance along the longitudinal axis (the pitch axis), it's actually forcing the airplane to pivot about the CG: Relax back pressure on the pitch control, and the nose drops as downforce decreases.
On the pulping side or at the paper machine wet end, minerals contribute to pitch control and continue to serve as fillers--at levels sometimes as high as 40% of the sheet.
package width, pneumatic traverse reversals, variable pitch control, and a 16:1 speed ratio.
This unique active pitch control capability helps optimize its aerodynamic performance for the same reasons a bird changes the shape of its wings in flight.
2 MW (alternatives allowed)- At least 135 m hub heights,- Tubular steel tower, concrete tower or hybrid tower (concrete and steel),- Rotor diameter at least 115 m,- Power limitation: pitch control of the rotor blades,- Optimized site structure way for forest sites (as small as possible crane Pitch and assembly and warehouse space as well as single-sheet assembly)- In compliance with SDLWindV unit,- Type Certificate IEC WT01, as amended, created by an accredited institution such as GL Wind, TE[pounds sterling]V Nord and TE[pounds sterling]V SE-d- Required foundations for soils up to soil class 5,- WTG transformer 20 kV,- Medium voltage switchgear SF6.