Tug

A tug is a limited role starship designed to tow starships or other large objects to another destination. Also known as a towing vessel, a tug is almost always fitted with a tractor beam. 

In 2372, the USS Swiftsure (NX-71843) was towed from Deep Space 9 for repairs.

In the early days of the Dominion War, the USS Fredrickson (NCC-42111) had to be towed to Federation space for repairs. 

In the late 2370s, the USS Acavus (NCC-1025) was converted into a transport/tug, and eventually assigned to Pharos Station. (: "Into the Reach")

Tugs by common races

 * USS Moncrief (NCC-3800)
 * USS Al-Rashid (NCC-3802)
 * USS Ambartsumian (NCC-3817)
 * USS Aristarchus (NCC-3805)
 * USS Chandrasekhar (NCC-3923)
 * USS Humason (NCC-3861)
 * USS Kepler (NCC-3816)
 * USS Lagrange (NCC-3916)
 * USS Leavitt (NCC-3849)
 * USS Masada (NCC-293391)
 * USS Ptolemy (NCC-3801)
 * USS Rittenhouse (NCC-3851)
 * USS Tombaugh (NCC-3853)
 * USS Van Maanen (NCC-3940)
 * USS Vogel (NCC-384)
 * USS Wolf (NCC-3921)
 * USS Van Maanen (NCC-3940)
 * USS Vogel (NCC-384)
 * USS Wolf (NCC-3921)