Surak was a long ranged shuttle seen in Star Trek: The Motion Picture:
Memory Alpha describes a long ranged shuttle as:
These long range shuttles featured a detachable fuselage pod, capable of acting as an independent craft from the stardrive section.
Here it is separating to deliver Spock to the Enterprise:

What happens to the stardrive section at this point? Is there a pilot in there to guide it back post separation?
