T2-SE-A3 tanker

The T2-SE-A3 was a Maritime Commission tanker design that was essentially the Marinship T2-SE-A2 built to Navy standards from the start, with the same 10,000 horsepower turbo-electric plant. In October 1944 the Chief of Naval Operations asked for nine more oilers, and on 2 November 1944 the Maritime Commission added four ships of this design at the Marinship yard in Sausalito, California, alongside five T3 tankers at Bethlehem Steel. Building a fleet oiler this way avoided the four to six months of conversion work that a civilian tanker needed after delivery. The last three ships were completed without the naval features after the Navy cancelled them in the closing days of the war. USS Cohocton (AO-101) appears to be the only one that entered Navy service as an A3, while Concho, Conecuh and Contocook were laid down as A3s but completed as T2-SE-A2 tankers.