The German planes did not only fly for 30 minutes; their flight duration varied depending on the mission and operational requirements. For example, during World War II, some missions involved longer flights, while others were shorter, lasting around 30 minutes. The specific context—such as the type of aircraft, mission objectives, and tactical situation—determined flight times.
There are a few reasons that German planes might have flown over a city after it had surrendered. For example, they may have been recording propaganda.
No only on planes.
Nobody can fly only birds ,planes and helicopters so no
Of course, planes can fly.
As opposed to flying what else - -
it can fly
In my plane it is about 15 minutes. Planes vary in speed and capability though.
Only for short periods.
Only jet fighter planes break sound barrier now.
At night - or in bad weather where visibility is too poor to fly by using landmarks.
How do heat engine allow planes to fly
They both fly. The only difference is that a ballon has helium to make it fly but air planes use gas to make it fly.