Shuttle

A shuttle is a vehicle which does regular transfers between two locations. In Orbiter this name gets used for various spacecraft:

• The NASA Space Shuttle, also known as Space Transportation System.
• Shuttle-A, a medium cargo shuttle for celestial bodies without atmosphere.
• The Shuttle-D, another cargo shuttle inspired by the Shuttle-A.
• Shuttle-PB, a tiny personal spacecraft.

Other Orbiter spacecraft, which also fulfil the role of a shuttle, but are not named like that are:

• Delta-glider
• DeltaGliderEX, a large spaceplane inspired by the Delta-glider.
• Aries, Orion, Titov and Gagarin from the World of 2001 addon. Also the Moonbus and the Rocketbus can be considered shuttles.
• Starclipper, one of the proposals for the STS project.