History-
Thie was a larger, Dockport-Equipped Warpshuttle, equipped with a standard cockpit, forward and side doors, forward ventral mounted phasers and tracter beam, and 6.8 meter long Microwarp Engines, bunks and computer terminals to the side, followed by head, then replicator and bunks with a small table to the back.
They were sometimes used as Couriers, and as early Runabouts, although they were somewhat rickety, and lacked some of the flexibility of the soon-to-arrive Danube and Nile Classes.