Definition
The shortest ground roll and total distance over a 50-foot obstacle that an aircraft requires to take off, achieved when the airplane is operated at its precise recommended takeoff speed and configuration under the existing conditions. It is the published or calculated benchmark distance against which actual takeoff performance is measured.
Plain English
The shortest takeoff distance the airplane can achieve when flown exactly the way the manufacturer recommends. Any deviation from the correct speed, flap setting, or technique will make the actual takeoff longer than this number.
Context Anchor
Seen in takeoff performance planning, especially when checking whether a runway is long enough for the aircraft, weight, wind, temperature, and field elevation.
Why Pilots Care
Determines whether the chosen runway allows a safe departure or if weight, wind, or temperature adjustments are required.
Analogy
It is like knowing the shortest safe stopping distance for a car, but in reverse: you need enough room to speed up and leave the ground safely, not just barely move.
Grounding Statement
Before takeoff, the pilot compares the aircraft’s required distance with the runway actually available.
Intuition Check
Minimum does not mean “barely possible” or “always the same number.” Here it means the shortest safe takeoff distance for a specific aircraft, loading, runway, weather, and procedure.
Example Sentence 1
The chart showed a minimum takeoff distance of 1,400 feet over a 50-foot obstacle, so the pilot added a margin before committing to the short strip.
Example Sentence 2
Hot weather and a heavy load increased the minimum takeoff distance beyond the available runway, so the pilot reduced fuel.