Definition
The maximum speed at which the flight controls can be fully or abruptly deflected, or at which the aircraft can be flown into a sharp gust, without exceeding the airframe's design load limit. At or below this speed, the wing will stall before structural limits are reached, protecting the airframe from overload. Maneuver speed decreases as aircraft weight decreases. It is published in the Pilot's Operating Handbook and is commonly abbreviated VA.
Plain English
The fastest speed at which you can yank the controls all the way or hit rough air without bending or breaking the airplane. Above this speed, hard control inputs or strong gusts can damage the structure.
Context Anchor
Seen in load factor discussions, the airplane flight manual, and training decisions before abrupt practice maneuvers or flight in rough air.
Derivation
From 'maneuver' (to handle or move with skill, from French manoeuvre, ultimately Latin manu operari, 'to work by hand') plus 'speed.' The name reflects what the speed protects: it is the limit for handling the aircraft with full control inputs.
Why Pilots Care
Knowing maneuver speed prevents overstressing the airframe during sudden maneuvers or in rough air.
Grounding Statement
At or below maneuver speed, the airplane is meant to give up lift before it gives up structure during one abrupt control input.
Intuition Check
Do not read “maneuver speed” as “the best speed for doing maneuvers.” It means a structural protection speed for one abrupt control input, and it does not make every kind of maneuver safe.
Example Sentence 1
Entering an area of moderate turbulence, the pilot reduced power and slowed to maneuver speed before continuing.
Example Sentence 2
During stall practice the instructor kept the airplane below maneuver speed to allow safe full-deflection inputs.