Scout ship

Scout ships were reconnaissance craft that could be detached from a mothership. The Hydrax had three scout ships fronted with bolts of steel. One of these was used by the Fourth Doctor to impale and kill the King Vampire. (TV: State of Decay)

The Sontarans had spherical scout ships that each contained a single Sontaran. (TV: The Time Warrior)

Cybermen Bremm and Gramm from Mondas were sent in a scout craft on a mission to find Earth. Their craft crash-landed in the mountains of Austria in 19th century. (AUDIO: The Silver Turk)