The Batcopter is the fictional personal helicopter

Helicopter

A helicopter is a type of rotorcraft in which lift and thrust are supplied by one or more engine-driven rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forwards, backwards, and laterally...

 of comic book

Comic book

A comic book or comicbook is a magazine made up of comics, narrative artwork in the form of separate panels that represent individual scenes, often accompanied by dialog as well as including...

 superhero

Superhero

A superhero is a type of stock character, possessing "extraordinary or superhuman powers", dedicated to protecting the public. Since the debut of the prototypical superhero Superman in 1938, stories of superheroes — ranging from brief episodic adventures to continuing years-long sagas —...

 Batman

Batman

Batman is a fictional character created by the artist Bob Kane and writer Bill Finger. A comic book superhero, Batman first appeared in Detective Comics #27 , and since then has appeared primarily in publications by DC Comics...

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The military aviation branch designs and manufactures jet fighters and helicopters for the U.S. military. The most notable models of these are the W-4 Wraith fighter and the Kestrel attack helicopter.
The Whirly-Bat was Batman's single-occupant mini-copter. It was swift and highly-maneuverable. However, the Whirly-Bat's lightweight design prohibited the additional weight of offensive weaponry.
The "Flying Batcave" was a giant helicopter with many of the real Batcave

Batcave

The Batcave is the secret headquarters of fictional DC Comics superhero Batman, the alternate identity of playboy Bruce Wayne, consisting of a series of subterranean caves beneath his residence, Wayne Manor.-Publication history:...

's scientific amenties.