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The system is composed of fuselage or wing-mounted angle of attack (AOA) sensors that are connected to an avionics computer, which receives inputs from the AOA sensors along with a variety of other flight systems. When this data indicates an imminent stall condition, the computer actuates both the stick shaker and an auditory alert. [8]
In generic terms, a stick pusher is known as a stall identification device or stall identification system. [73] A stick shaker is a mechanical device that shakes the pilot's controls to warn of the onset of stall. A stall warning is an electronic or mechanical device that sounds an audible warning as the stall speed is approached. The majority ...
A system for this purpose is known as a stick pusher. The safety requirements applicable to fixed-wing aircraft in the transport category, and also to many military aircraft, are relatively demanding in the area of pre-stall handling qualities and stall recovery. Some of these aircraft are unable to comply with these safety requirements relying ...
In the 1960s, a basic pitch control system known as the stick shaker was installed in the Boeing 707 to avoid stalling. [6] Later, a similar system to avoid stalling, in this case specifically called the Maneuvering Characteristics Augmentation System (MCAS), was implemented on the Boeing KC-46 Pegasus military aerial refueling tanker. [7]
In aviation, and in particular in helicopters, servo transparency (also called servo reversibility or jack stall), [1] is a phenomenon affecting the servomechanisms (or servos) that assist a helicopter's flight controls, which, in certain flight conditions, can result in a significant stiffening of the controls handled by the pilot.
This happens when the wing exceeds its critical angle of attack. Greene realized that the accident could have been avoided if the pilot had been warned of an imminent stall. Aerodynamic stalls caused the majority of aviation deaths at the time. [2] In the mid-1940s, Greene developed the first practical way to warn the pilot of the aerodynamic ...
SEATTLE/LONDON (Reuters) - A Boeing Co software fix for the grounded 737 MAX will prevent repeated operation of an anti-stall system at the centre of safety concerns and deactivate it altogether ...
The falling leaf is often used as a training maneuver, teaching the pilot to control the plane during a stall and helping beginners to overcome the fear that happens when a plane stalls unexpectedly. It is generally performed from a low-speed, straight, level stall, to avoid the buffeting, departure from the normal flightpath, and flat spin ...