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SESK: Stuff Everyone Should Know · sesk.info/pilot-runway-lengths-every-flight

For every flight, what airport information must the PIC know before departure under rule 91.103?

Runway lengths at the airports of intended use, plus takeoff and landing distances.

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  1. The tower controllers' names
  2. Runway lengths at airports of intended use ✔
  3. The fuel price at each stop

Why: Rule 91.103 says the PIC must become familiar with all available information about a flight. For any flight, that includes runway lengths at airports of intended use and takeoff and landing distance data.

Huh, didn't know that: For IFR flights or flights away from the airport, the rule adds weather, fuel needs, alternatives and known traffic delays.

The dad joke
Why did the pilot measure the runway? He wanted to know if it was long enough for his long story.
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References

Answer: Runway lengths at airports of intended use. Rule 91.103 says the PIC must become familiar with all available information about a flight. For any flight, that includes runway lengths at airports of intended use and takeoff and landing distance data.

  1. 14 CFR 91.103 Preflight action www.ecfr.gov/current/title-14/section-91.103
    For any flight, runway lengths at airports of intended use, and the following takeoff and landing distance information
    Checked 2026-10-09.

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