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searching for Blade pitch 39 found (165 total)

Sean Bonney (657 words) [view diff] case mismatch in snippet view article find links to article

has published a special edition on Bonney. His publications include Blade Pitch Control Unit (2005), Baudelaire in English (2008), Document (2009), The

Cyclogyro (543 words) [view diff] exact match in snippet view article find links to article

wheel, with airfoil blades replacing the paddles. Like a helicopter, the blade pitch (angle of attack) can be adjusted either collectively all together or

Autorotation (1,694 words) [view diff] exact match in snippet view article find links to article

regions vary with the blade pitch, rate of descent, and rotor rotational speed. When changing autorotative rotational speed, blade pitch, or rate of descent

Power trowel (358 words) [view diff] exact match in snippet view article find links to article

joystick/levers (these can be either mechanical or electronic/hydraulic). Blade pitch is controlled either by manual turn handles, (usually both spiders are

CubeSail (UltraSail) (1,034 words) [view diff] exact match in snippet view article

direction, would be controlled by changing the cyclic and collective blade pitch similar to a helicopter. Although the Heliogyro design has no mass advantage

Radio-controlled helicopter (3,326 words) [view diff] exact match in snippet view article find links to article

as inverted flight (where collective pitch control provides negative blade pitch to hold heli up inverted, and pitch/yaw controls must be reversed by

Astern propulsion (475 words) [view diff] exact match in snippet view article find links to article

propeller-driven aircraft using controllable pitch propellers can change the blade pitch sufficiently to provide astern propulsion. This facility is sometimes

Variable speed wind turbine (2,051 words) [view diff] exact match in snippet view article find links to article

efficiency, or coefficient of power, C p {\displaystyle C_{p}} for a fixed blade pitch angle is obtained by operating the wind turbine at the optimal tip-speed

Eemmeerdijk Wind Park (734 words) [view diff] exact match in snippet view article find links to article

fallen down on January 4, 2023, due to the heavy winds and a faulty blade pitch and braking system. The breaking of turbine 7 was the reason for the

Gamma 60 wind turbine (3,475 words) [view diff] exact match in snippet view article find links to article

power regulation through yaw control, rather than industry-standard blade pitch control, including broad range variable speed in a two-bladed teetering

Wind turbine design (10,945 words) [view diff] exact match in snippet view article find links to article

technique was successfully used on many early HAWTs. However, the degree of blade pitch tended to increase noise levels. Vortex generators may be used to control

Grigore Brișcu (174 words) [view diff] exact match in snippet view article find links to article

first engineer to begin experimenting with the cyclic variation of rotor blade pitch to ensure horizontal flight and stability in helicopters. He invented

Industrial fan (2,100 words) [view diff] exact match in snippet view article find links to article

blades are adjusted periodically to optimize efficiency by matching the blade pitch to the varying conditions for the application. These fans are often used

Landgraf H-2 (363 words) [view diff] exact match in snippet view article find links to article

tension-rod drive system to drive the side-by-side rotors. Control of blade pitch was also unconventional, with the blade shells rotating freely about

Black start (2,416 words) [view diff] exact match in snippet view article find links to article

relatively small amount of electric power for such things as adjusting blade pitch and direction. Normally, the electric power used within the plant is

Republic XF-84H Thunderscreech (1,937 words) [view diff] exact match in snippet view article find links to article

390 kW) was installed but never used. Thrust was adjusted by changing the blade pitch of the 12 ft (3.7 m) diameter Aeroproducts propeller, consisting of three

Turbomeca Astazou (965 words) [view diff] exact match in snippet view article find links to article

adjusted automatically to maintain a constant propeller or rotor speed as blade pitch varies. As of the Astazou X, the engine received a second axial compressor

Water turbine (4,049 words) [view diff] exact match in snippet view article find links to article

turbines are used for low head sites. Kaplan turbines with adjustable blade pitch are well-adapted to wide ranges of flow or head conditions, since their

LTV XC-142 (1,942 words) [view diff] exact match in snippet view article find links to article

were also high side forces which resulted from yaw and weak propeller blade pitch angle controls. The new "2FF" propellers also proved to generate less

Ground effect (aerodynamics) (2,098 words) [view diff] exact match in snippet view article

square foot of its area. This gives a thrust increase for a particular blade pitch angle, or, alternatively, the power required for a thrust is reduced

Wind power in Ohio (2,421 words) [view diff] exact match in snippet view article find links to article

modern design concepts such as tubular towers and computer control of blade pitch and rotor yaw. Most of the MOD-series wind turbines went to sites outside

Tesla turbine (3,159 words) [view diff] exact match in snippet view article find links to article

the optimal regime, the orientation of the blades minimizes the angle (blade pitch) with which the steam is hitting their surface area, to create smooth

Caproni Ca.1 (1910) (1,887 words) [view diff] exact match in snippet view article

block both propellers in case of the failure of one of the chains. The blade pitch could be adjusted while the aircraft was on the ground. The prairie around

Seawind Ocean Technology (3,200 words) [view diff] exact match in snippet view article find links to article

works in conjunction with a yaw power control system that eliminates all blade pitch control mechanisms. Seawind's floating wind turbines, which allow for

Boeing A160 Hummingbird (3,203 words) [view diff] exact match in snippet view article find links to article

less fuel - than comparable conventional helicopters, which only adjust blade pitch and keep the rotor at constant rpm. In August 2005, Frontier Systems

Autogyro (6,575 words) [view diff] exact match in snippet view article find links to article

to start it spinning before takeoff, and collective pitch to reduce blade pitch before driving the rotor. Collective pitch controls are not usually fitted

Wind power (10,954 words) [view diff] exact match in snippet view article find links to article

ladder Wind orientation control (yaw control) Nacelle Generator Anemometer Electric or mechanical brake Gearbox Rotor blade Blade pitch control Rotor hub

Evopod (1,484 words) [view diff] exact match in snippet view article find links to article

tidal stream velocity as the wave passes the turbine. Without proper blade pitch or power take-off control systems this could lead to the blade stalling

Leonardo AW609 (5,823 words) [view diff] exact match in snippet view article find links to article

flight rules conditions. Several of the aircraft's controls, such as blade pitch, are designed to resemble and function their counterparts on conventional

Kaman K-MAX (5,174 words) [view diff] exact match in snippet view article find links to article

for the U.S. Air Force in the 1950s and 1960s. The pilot controls the blade pitch via steel tubes running inside the mast and rotor blades to move servo

Ceiling fan (8,594 words) [view diff] exact match in snippet view article find links to article

either not reversible at all or mechanically reversible (have adjustable blade pitch) instead of an electrically reversible motor. In this case, the blades

Albert Gillis von Baumhauer (1,016 words) [view diff] exact match in snippet view article find links to article

rotor and adjusted blade angles via rods. This enabled adjustment of blade pitch according to the blade's current angle, a mechanism which is still used

Kish Air Flight 7170 (3,330 words) [view diff] exact match in snippet view article find links to article

hydraulics no time to compensate. The counterweights eventually caused the blade pitch of the left propeller to fully decrease. Instead of increasing the airspeed

Embraer EMB 312 Tucano (8,198 words) [view diff] exact match in snippet view article find links to article

the constant-speed mechanism to be manually overridden to reverse the blade pitch angle, thus providing excellent ground-handling characteristics, helping

Floating wind turbine (9,148 words) [view diff] exact match in snippet view article find links to article

works in conjunction with a yaw power control system that eliminates all blade pitch control mechanisms. Seawind's predecessor wind turbines include the Gamma

Unadilla-class gunboat (2,959 words) [view diff] exact match in snippet view article find links to article

ships' propellers were four-bladed, and nine feet in diameter with a mean blade pitch of 12 feet 6 inches. Sources vary as to the speed of the ships. Some

ARC Aerosystems (802 words) [view diff] exact match in snippet view article find links to article

starts as the pilot pulls the collective pitchlever, increasing rotor blade pitch and simultaneously pushes engine throttles to full power. The rotor lifts

Supercapacitor (19,949 words) [view diff] exact match in snippet view article find links to article

provide backup power for actuators in wind turbine pitch systems, so that blade pitch can be adjusted even if the main supply fails. Supercapacitors can stabilize

Development of tidal stream generators (6,036 words) [view diff] exact match in snippet view article find links to article

simple, with a direct-drive generator (without gearbox) and no yaw or blade pitch adjustment. It also had no dynamic seals, thus the generator was cooled