Mechanical device in an aircraft cockpit to warn the pilot of an imminent stall
The BAC-111 cockpit includes a stick shaker/pusher following its 1963 crash
A stick shaker is a mechanical device designed to rapidly and noisily vibrate the control yoke (the "stick") of an aircraft, warning the flight crew that an imminent aerodynamic stall has been detected. It is typically present on the majority of large civil jet aircraft, as well as most large military planes.
The stick shaker comprises a key component of an aircraft's stall protection system. Accidents, such as the 1963 BAC One-Eleven test crash, were attributable to aerodynamic stalls and motivated aviation regulatory bodies to establish requirements for certain aircraft to be outfitted with stall protection measures, such as the stick shaker and stick pusher, to reduce such occurrences. While the stick shaker has become relatively prevalent amongst airliners and large transport aircraft, such devices are not infallible and require flight crews to be appropriately trained on their functionality and how to respond to their activation. Several instances of aircraft entering stalls have occurred even with properly functioning stick shakers, largely due to pilots reacting improperly.
A stickshaker is a mechanical device designed to rapidly and noisily vibrate the control yoke (the "stick") of an aircraft, warning the flight crew that...
to 135 knots (250 km/h; 155 mph). Six seconds later, the aircraft's stickshaker activated, warning of an impending stall, as the speed continued to slow...
function in much the same way as the stick pusher. However, a stick pusher should not be confused with a stickshaker, the latter being a device that warns...
of the control stick, giving force feedback that was proportional to the airplane's normal acceleration.[citation needed] A stickshaker is a device that...
was flying above Patna's Secretariat Tower. During the left turn, the stickshaker activated, warning the crew on the impending stall condition. The aircraft...
would slow the aircraft down until the stickshaker activated, record the stall speed and that of the stickshaker activation, and then recover control...
inputs by the pilot flying generated stall warnings and activation of the stick pusher to which the crew did not respond in a timely and effective manner...
attitude and it should remain in that position until the stickshaker stops. The stickshaker should have immediately stopped by the time the flight crew...
electrical systems to go offline, most notably the captain's instruments, his stickshaker, and the slat disagreement sensors. A switch in the overhead panel would...
of hands on throttle-and-stick, is the concept of placing buttons and switches on the throttle lever and flight control stick in an aircraft cockpit. By...
293 km/h). The first abnormality was indicated at 17:41:11 when the stickshaker activated. First officer Hergert said, "Gettin' a stall. You got it."...
of attack is measured, and as the critical stall point approaches a stickshaker is engaged which simulates the response of a simpler control system....
A centre stick (or center stick in the United States), or simply control stick, is an aircraft cockpit arrangement where the control column (or joystick)...
disagree message did not appear. The left minimum operating speed and left stickshaker speed was computed to be greater than the maximum operating speed without...
altitude of 1,250 ft (380 m) when the stickshaker activated and sounded for 3 seconds. After 1.5 seconds, the stickshaker sounded again. The aircraft continued...
was flying too fast.: 18 This action immediately triggered the 757's stickshaker stall alert, warning the confused pilots that the aircraft was flying...
that the plane's fuel had been exhausted. In addition, sounds of the stickshaker and the disconnection of the autopilot can be heard. With the engines...
the stickshaker activated and the airplane entered an aerodynamic stall, caused by the wing's critical high angle of attack. As the stickshaker activated...
was not enough to maintain level flight without losing speed.: 29 The stickshaker, a stall warning device attached to the pilots' control yoke, activated...
officer to alert him to the potential stall danger. At that point, the stickshaker system activated and the captain took over control of the aircraft. The...
column or joystick is located centrally (centre stick), although in some military fast jets the side-stick is located on the right hand side. In some commercial...
turn, caused the activation of the stickshaker, warning the crew of an impending stall. Alarmed by the stickshaker, Captain Afridi immediately made a...
documentation in the aircraft flight and maintenance log about the continuous stickshaker and use of the runaway stabilizer NNC meant that information was not...
was close to stalling. The flight from Perth to Kalgoorlie had two 'stickshaker' (stall) warnings. They were caused by the pilot entering the wrong weight...
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