Let’s take a look at the skies and see just how high airplanes fly. For most commercial flights, the sweet spot lies between ...

Source: Jim Gregory, Professor of Mechanical & Aerospace Engineering at Ohio State University Footage courtesy: Stefano Ciciarello How do massive airplanes fly ... an area of high air pressure ...

Issue 2: Less oxygen means less combustible fuel to power the engine. So how high can planes actually fly? Commercial airliners generally don't surpass 45,000 feet. But some pilots have pushed ...