What Temperature Is Too Hot for Planes to Fly?

What Temperature Is Too Hot for Planes to Fly?

The first time I saw a visible sign of how heat can affect flying was while boarding a flight in Louisiana: Fog was pouring from the vents inside the cabin. It was pretty alarming, but I eventually realized that the witch’s-cauldron effect was caused by the soupy, humid air seeping in as we boarded mixing with the plane’s ice-cold AC, creating extreme—and very eerie—condensation. Once the cabin’s air temperature and humidity evened out, the fog …