They fly helicopters.
Yes you can fly helicopters in the multiplayer game mode that comes with DLC,its called vehicle mayhem.In this DLC you can drive all vehicles also you can fly ceph gunship.Also you can fly helicopters in the singleplayer level called "Ace of Sky".
No, Helicopters cannot fly in Stratosphere. It is too high for them. They do not produce that much lift. But they can fly in the Troposphere.
They fly in California.
You can fly helicopters.
no
There are many different helicopters. Most small civilian helicopters may fly for about an hour, but large passenger or military helicopters can fly for 6 hours or more.
so we can fly
No
Helicopters can fly directly up or down.
Yes, there are helicopters available.
Some experimental helicopters can fly as fast as 300 mph. However most helicopters in service fly less than 200 mph.