San Diego Marine

San Diego Marine was a shipbuilding company in San Diego, California. To support the World War 2 demand for ships San Diego Marine built: minesweepers and sub chasers. San Diego Marine was opened in 1915 as San Diego Marine Construction shipyard Captain Oakley J. Hall. The company was sold to Campbell Industries in 1972. It was sold again in 1979 and renamed Southwest Marine. Boatbuilding ended in 1983. Southwest Marine was sold to U.S. Marine Repair in 2003. The named changed to BAE Systems Ship Repair in 2005. The shipyard is located at 2205 East Belt Street, San Diego.

YMS-1-class minesweeper
San Diego Marine built YMS-1-class minesweepers for the United States Navy in 1942 and 1943. The ships had a displacement of 270 tons, a length of 136 ft, a beam of 24 ft, a draft of 10 ft, and a top speed of 15 kn. The ships had a crew of 32. The vessels were armed with one 40 mm gun.

Ships:
 * YMS-113 (later USS Brant (AMS-43))
 * YMS-114 (later USS Courlan (AMS-44)
 * YMS-115
 * YMS-116
 * YMS-143
 * YMS-144
 * YMS-145
 * YMS-146
 * YMS-281
 * YMS-282 (later HMS BYMS-2282)
 * YMS-283
 * YMS-284

PCS-1376-class patrol craft sweeper
San Diego Marine built PCS-1376-class patrol craft sweepers (planned as a submarine chaser) that had displacement of 245 LT light, and 340 LT full load. They had a length of 136 ft, a beam of 24 ft, a draft of 7 ft. Power from two General Motors 8-268A diesel engines with 800 bhp each. They used a Snow and Knobstedt single reduction gear to two shafts. The vessels had a top speed of 14 kn. They housed complement of 57 officers and enlisted. The patrol craft sweepers were armed with one 3"/50 caliber gun, one 40 mm gun, two 20 mm guns, four depth charge projectors, one Hedgehog anti-submarine mortar and two depth charge tracks.

Built:
 * PCS-1445
 * PCS-1446
 * PCS-1447, renamed YMS-475
 * PCS-1448, renamed YMS-476

District Patrol Craft
San Diego Marine built District Patrol Craft of, , a length 90 to 110 ft, a beam of 23 ft, and a draft of 10 ft. They were powered by one diesel engine connected to one propeller with 275 hp. These were built in 1930 and 1931 and taken over by the United States Navy in 1941.
 * YP-264
 * YP-236
 * YP-283
 * PYc-16, later became a submarine chaser

Landing Craft Mechanized
San Diego Marine built 15 Landing Craft Mechanized (LCM) or "Mike Boat" in 1979. LCMs are river boats and mechanized landing craft. These are used by the United States Navy and Army during the Vietnam War. LCM stands for "Landing Craft Mechanized, Mark 8", a use of the phonetic alphabet, LCM being "Lima Charlie Mike". LCMs have a displacement of 57.8 LT, and 58.7 LT light and 111.4 LT loaded. The LCM had a length of 73 ft, a beam of 21 ft, a draft of a draft of 4 ft and draft of 5 ft loaded. Power is from two Pak GMC 6-71 or Gray Marine 6-71 diesels paired to two hydrostatic transmissions Detroit 12V-71 diesel engines, with twin screws. LCM have a top speed of 12 kn light and 9 kn loaded. LCM have a capacity of 53.5 LT of cargo and a crew of 4 to 6. They were armed with two .50 caliber M2 Browning machine guns.