You ground the aircraft because helicopters build up static electricity in flight. You then connect a hose to the filler neck and pump in the fuel the helicopter uses - either jet fuel or gasoline.
A purple helicopter is a helicopter of the color purple. Really?
Everybody I know says A helicopter.
For the helicopter body to be in balance and direction to steer the helicopter.
A helicopter pilot flies a helicopter in the army.
Helicopter pilots do
In their helicopter.
There is no helicopter.
fueled
in a helicopter musem
it's a helicopter
No
with helicopter mod