Answer:

helicopter

Answer	Crossword Clue
HELICOPTER	One of 63 Across's plans
HELICOPTER	Chopper in the sky
HELICOPTER	Sikorsky's brainchild

HELICOPTER	VIP's transport
HELICOPTER	Police-department hoverer
HELICOPTER	Vehicle that hovers in air
HELICOPTER	Airship.
HELICOPTER	Feature of Mt. McKinley rescue.
HELICOPTER	Something seen on a pad
HELICOPTER	Igor Ivan Sikorsky's 1939 good idea