Tal'Kyr class

The Tal'Kyr class was a class of shuttlecraft designed by the Vulcans and was uesd by the Confederacy of Vulcan and were often attached to D'Kyr class Science Vessels. Whilst initially the Vulcans made use of these craft, they did make the design available to Starfleet to build. Tal'Kyr Support Craft held a crew of 25 which included two bridge officers. 

Classified as a Support Craft, this was because they were not designed to be combat vessels but rather aimed to support their carrier craft along with ally ships. This was done through the use of Structural Integraity Force Fields that were used by the shuttle to repair the damage sustained on a targets shield or hull. Whilst not an attack ship, Tal'Kyr Support Craft were capable of making use of their weapons array that consisted of a plasma turret and photon torpedo weapon to attack targets of opportunity. 

External link

 * STO Wiki