Definition
A device that applies a rearward (nose-up) force to the control stick or yoke when the airplane approaches a flight condition the manufacturer wants to discourage, such as exceeding a maximum operating speed (VMO/MMO). The pilot feels a pull urging the controls aft, prompting a pitch-up to slow the airplane.
Plain English
A safety system that physically tugs the control stick back toward the pilot when the airplane is going too fast, encouraging the pilot to raise the nose and slow down.
Context Anchor
Seen in discussions of aircraft flight-control protection systems, especially in airplanes with automatic systems that help prevent unsafe high-speed flight.
Derivation
Named directly for what it does — it pulls the stick. The pairing with 'stick pusher' (which pushes the stick forward to prevent a stall) makes the symmetry easy to remember: pusher prevents going too slow, puller prevents going too fast.
Why Pilots Care
A stick puller is a tactile warning the pilot can feel through the controls, even if they miss a visual or aural overspeed alert. Recognizing it for what it is — and responding by reducing speed rather than fighting the input — is essential to avoiding structural overspeed damage.
Intuition Check
A stick puller is not just a pilot pulling back on the controls. In this aviation use, it means an automatic system that applies the pull to help protect the airplane from excessive speed.
Example Sentence 1
As the jet accelerated past VMO in the descent, the stick puller activated and the captain felt a firm rearward pressure on the yoke.
Example Sentence 2
Smooth control inputs help prevent the tendency to act as a stick puller during recovery from a high angle of attack.