Definition 1 of 2
Definition
An unintended climb or upward pitch of the airplane during landing flare or after flap extension, caused by a sudden increase in lift relative to the airplane's weight. Ballooning typically results from excessive airspeed at the flare, an abrupt or excessive flap deployment, or over-rotation during the round-out, and it leaves the airplane higher than the intended landing path with decaying airspeed.
Plain English
Ballooning is when the airplane unexpectedly rises into the air during landing instead of settling onto the runway. It usually happens because the pilot pulled the nose up too much, came in too fast, or added flaps too quickly, so the wing produced more lift than expected and the airplane floated upward.
Context Anchor
Seen in landing discussions and flap-use training, especially when the airplane reacts to flap extension or to an overly strong nose-up input near the runway.
Derivation
From the everyday word 'balloon,' meaning an object that rises into the air. The aviation use borrows that picture: the airplane briefly behaves like a balloon, climbing away from the runway when the pilot expected it to land.
Why Pilots Care
Unanticipated ballooning can cause the airplane to float beyond the intended touchdown point, leading to a long landing or runway overrun.
Grounding Statement
Picture the airplane close to the runway, then suddenly floating upward instead of settling down.
Intuition Check
Balloon does not mean the aircraft is acting like a lighter-than-air balloon. Here it means the airplane unintentionally rises or floats upward because its lift or nose position changed.
Example Sentence 1
When the student flared too high and too fast, the airplane ballooned, and the instructor called for a go-around.
Example Sentence 2
The student learned to reduce power before lowering flaps to prevent the airplane from ballooning and landing long.