Shuttlebay

From Memory Alpha, the free Star Trek reference.

The shuttlebay (variously called the flight deck, hangar deck or shuttlecraft bay) is a facility on a starship where shuttlecraft are launched, received, stored and maintained.

The space doors are usually closed, and are replaced with a force field when a shuttlecraft is about to land or to be launched. This force field can be penetrated by the shuttlecraft itself, while it prevents decompression of the shuttlebay.

On at least Constitution-class starships, flight decks were overlooked by an observation deck. (TOS: "The Conscience of the King")

Most shuttlebays are equipped with a tractor beam emitter in order to facilitate the landing procedure. During the 22nd century, these facilities were referred to as "launch bays". (ENT: "Broken Bow", et al.)

Deep Space 9's landing pads provide a similar storing location for small starships such as Danube-class runabouts, Ferengi shuttles and Romulan shuttles. (DS9: "Emissary", "The Magnificent Ferengi", "In the Pale Moonlight")

The hangar deck aboard a Constitution-class starship

The shuttlebay of a Constitution-class starship

The shuttlebay of a Galaxy-class starship

Interior view of an Intrepid-class shuttlebay

Exterior view of an Intrepid-class shuttlebay

The main shuttlebay of a Sovereign-class starship