This is a vessel of specialised commercial application - a medium sized tug/oil carrier.

Construction is hard chine and the twin GM 6-71M 257 SHP diesels provide plenty of bollard pull.
Accomodation of two berths is all in the deckhouse, complete with galley and dinette.
It carries just over 25 tons of cargo oil in storage tanks fore and aft in addition to its own running tanks.
Plans contain general arrangement, lines and offsets, structural details, engineering, plumbing and wiring.