This is a carrier-borne variant of the Wyvern heavy escort, for use with the Baltic class frigate tender made by HGE.
The ship has been equipped with a teleporter in the crew cabin and a new docker on the ventral pylon below the camera, but otherwise has identical capabilities to the E5553. However, the universal standard dock adapters either side of the craft do not have docking beams attached, as the carrier recall function will not use the correct docker when there are multiple blocks on the incoming ship.