When driving a car, you're on the ground if you run out of fuel. But what about in the air? You crash.
When you are flying a vertibird and run out of fuel, or deterioration becomes 100%, you crash it and it becomes a safe place like this for 1 hour:
Crash location would be random, within some range of wherever you were when it crashed, with some chance the location becomes new public PvP place on map, after your 1 hour safe time.