Definition
An aerobatic maneuver in which the aircraft is pushed forward through an outside loop from level flight, passing through the inverted position on the bottom half of the loop. The pilot applies forward stick, causing negative G forces as the nose pitches down and the aircraft rolls over the top of the maneuver while inverted.
Plain English
A maneuver where the pilot pushes the nose down and flies the aircraft through a forward loop, going over the top while upside down. It produces negative G — the kind of force that pushes you up out of your seat instead of pressing you down into it.
Context Anchor
Used in aerobatic flying, unusual-attitude discussions, and aircraft limitation discussions involving negative loads.
Derivation
From the aerobatic term 'bunt,' meaning a forward (outside) loop entered by pushing rather than pulling, combined with 'over' to describe rolling over the top while inverted. 'Bunt' itself comes from older English usage meaning to push or butt forward — fitting, since the maneuver is flown by pushing the stick forward instead of pulling it back.
Why Pilots Care
Buntovers create sustained negative G, which is physically demanding and only safe in aircraft certified for negative-G aerobatics. Attempting one in a non-aerobatic aircraft can damage the airframe, unport fuel and oil systems, and incapacitate the pilot.
Grounding Statement
Picture the pilot gently but deliberately pushing the controls forward and the nose dropping while the pilot feels lighter in the seat.
Intuition Check
Do not read “buntover” as just any nose-down movement. It specifically involves pushing the controls forward to pitch the aircraft nose-down, often with negative G.
Example Sentence 1
The pilot briefed the buntover carefully, confirming the aircraft was rated for sustained negative-G maneuvers.
Example Sentence 2
An abrupt buntover at high speed increased the risk of exceeding structural limits.