Contact

Corrections to any published figure, formula or translation on this site are welcome.

Reporting a Correction

A correction is most useful when it names the page, the figure as shown and the source that contradicts it.

Aircraft crosswind values vary by model year, variant and wing, so a demonstrated figure that looks wrong for one airframe may be correct for another. Citing the specific flight manual edition resolves that quickly.

What to Include by Report Type

Calculator result

Numbers

The four inputs used, the figure returned and the figure expected. Runway heading, wind direction, wind speed and the unit selected are enough to reproduce any result.

Aircraft figure

Reference

The type and variant, the value listed here, the correct value and the manual section it appears in. Demonstrated crosswind sits in the performance section of most light aircraft manuals.

Translation

Language

The language code from the URL, the sentence as rendered and a suggested replacement. Machine translation covers 17 languages here, so phrasing corrections from native speakers carry weight.

Scope of This Site

This site publishes reference figures and a calculation tool, and it does not provide operational guidance for a specific flight.

Questions about whether a particular wind is acceptable for a particular aircraft, pilot and runway fall to the flight manual, the operator's procedures and the pilot in command. The method behind every number is set out on the formula reference sheet, and the assumptions behind the tool are listed on the about page.