[i] A total of 109 N3 ship were built by: [1] The N3-S, with "S" designating "steam," came in two versions patterned on and sometimes themselves termed Baltic Coasters.

All of the 36 N3-S-A1 vessels, 2,800 DWT, delivered from December 1942 through May 1945, went to Britain and those surviving the war tended to be sold commercial but one; built as the Freeman Hatch and lastly named Houston, gaining some notoriety being sunk during the failed Bay of Pigs invasion in 1961.

[1][5][6] Of the 76 proposed N3-S-A2, 2,757 DWT, vessels 59 were built with the first delivered March 1944 and the last after the war in November 1945 with 17 scheduled ships canceled.

[7] Of those, 19 were operated in the Southwest Pacific Area as part of the Army's permanent local fleet with the first arriving 5 September 1944 and the last in December 1945.

Naval service by way of Army as postwar auxiliaries with at least some leased to Korea: Alchiba (AK-261), Algorab (AK-262), Aquarius (AK-263), Centaurus (AK-264), Cepheus (AK-265) and Serpens (AK-266).

[11] Four of the fourteen ships of this type retained the original form and were transferred to Britain as BAK-1, BAK-2, BAK-3 and BAK-4 and operated by Currie Line for the Ministry of War Transport as Asa Lothrop, Lauchlan McKay, John L. Manson and Nathaniel Mathews.

The conversion placed machine, welding and carpenter shops in number two hold along with generators and air compressors supporting engineering work.