D'kyr type support craft
The D'kyr-type support craft was a relatively large mid-22nd century support craft carried aboard Vulcan  starships. The support craft was docked inside the engine hoop of its mother ship. ()

In 2154, a craft of this type was among the air traffic near the Vulcan capital city. ()

Appendices

Appearances

Background information
Designer John Eaves regarded the support craft as a kind of rescue vessel similar to a DSRV used by the US Navy. 

This craft is known as the "Tal'Kyr Support Craft" in Star Trek Online.

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ja:ディキーア型の艦載艇
Vulcan starship classes