Definition
The total horizontal distance required for an airplane to accelerate from a standing start, lift off the runway, and climb to a specified height above the takeoff surface (commonly 50 feet) under the prevailing conditions of weight, wind, runway surface, temperature, and pressure altitude.
Plain English
How far down the runway and into the air it takes for an airplane to go from sitting still to being 50 feet above the ground.
Context Anchor
You see this term in performance charts, preflight planning, runway-length decisions, and obstacle-clearance planning before takeoff.
Why Pilots Care
Tells the pilot whether the available runway meets safety requirements under current weight, wind, and temperature conditions.
Grounding Statement
Before takeoff, the pilot compares the airplane’s required takeoff distance with the runway available under the current conditions.
Intuition Check
Takeoff distance does not always mean only the distance to lift off. In performance planning, it often includes the distance needed to climb to a stated height after liftoff.
Example Sentence 1
Before departing the short grass strip, the pilot checked the performance chart and confirmed the takeoff distance was well within the runway length available.
Example Sentence 2
A headwind reduced the required takeoff distance for the loaded airplane.