Pitch drop-back is the phenomena by which an aircraft which is perturbed in flight path angle from its trim position by a
step input
Step(s) or STEP may refer to:
Common meanings
* Steps, making a staircase
* Walking
* Dance move
* Military step, or march
** Marching
Arts Films and television
* ''Steps'' (TV series), Hong Kong
* ''Step'' (film), US, 2017
Literature
* ''S ...
exhibits an output which is indicative of a second order system.
A pilot who actuates an elevator input may find that the aircraft then "droops" or "drops back" to a position further toward the start position. The phenomenon is particularly marked in
tilt-rotor
A tiltrotor is an aircraft which generates lift and propulsion by way of one or more powered rotors (sometimes called ''proprotors'') mounted on rotating shafts or nacelles usually at the ends of a fixed wing. Almost all tiltrotors use a trans ...
aircraft. Pitch drop-back may be controlled using a
Stability Augmentation System
An autopilot is a system used to control the path of an aircraft, marine craft or spacecraft without requiring constant manual control by a human operator. Autopilots do not replace human operators. Instead, the autopilot assists the operator' ...
or Stability Control and Augmentation System.
See also
*
*
Index of aviation articles
Aviation is the design, development, production, operation, and use of aircraft, especially heavier-than-air aircraft. Articles related to aviation include:
A
Aviation accidents and incidents
– ADF
– Adverse yaw
– Aerobatics
– Aerodro ...
References
Aerospace engineering
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