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A Boeing 737 uses an adjustable stabilizer, moved by a jackscrew, to provide the required pitch trim forces. Generic stabilizer illustrated. A horizontal stabilizer is used to maintain the aircraft in longitudinal balance, or trim: [3] it exerts a vertical force at a distance so the summation of pitch moments about the center of gravity is zero. [4]
The vertical stabilizer is the fixed vertical surface of the empennage. A vertical stabilizer or tail fin [1] [2] is the static part of the vertical tail of an aircraft. [1] The term is commonly applied to the assembly of both this fixed surface and one or more movable rudders hinged to it.
Grumman F-14 Tomcat jet fighter during a takeoff, with stabilators deflected upwards. A stabilator is a fully movable aircraft horizontal stabilizer.It serves the usual functions of longitudinal stability, control and stick force requirements [1] otherwise performed by the separate parts of a conventional horizontal stabilizer (which is fixed) and elevator (which is adjustable).
The Maneuvering Characteristics Augmentation System (MCAS) is a flight control law [34] built into the Boeing 737 MAX's flight control computer, designed to help the aircraft emulate the handling characteristics of the earlier Boeing 737 Next Generation. According to an international Civil Aviation Authorities team review (JATR) commissioned by ...
When the aircraft banked due to the shift in weight, the autopilot immediately stabilized the wings. On his final pass, Sperry climbed out onto the opposite wing, leaving the pilot seat empty. The observers were amazed at the aircraft's ability to maintain level flight without a pilot manually controlling it.
As such, while the missile is in motion through the air, the resulting air current generated causes the rolleron to rotate. [8] Rollerons are also used on 9M31 and 9M37 surface to air missiles of Strela-1 and Strela-10 air defense systems, with former using wires wound on the flywheel discs to spin them on launch while the latter uses small gas ...
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The elevator is a usable up and down system that controls the plane, horizontal stabilizer usually creates a downward force which balances the nose down moment created by the wing lift force, which typically applies at a point (the wing center of lift) situated aft of the airplane's center of gravity.