And what happens if there is only one runway and winds are at 90* ...Much like the ferries, it’s all about wind direction. I can take off in a ripping headwind, but my crosswind tolerances are actually pretty limited. Once we’re aloft, yeah wind doesn’t matter that much.
Runways are always constructed to be parallel to prevailing winds. If the wind shifts (reveres) which is relatively common, you just go to the other end of the runway to take off.
