"O" Class Submarine (1917)

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Sixteen "O" class submarines were completed for the U.S. Navy in 1918.

Overview of 16 vessels
Citations for this data available on individual ship pages
Name	Builder	Laid Down	Launched	Completed	Fate
O-1	Portsmouth Navy Yard	26 Mar, 1917	9 Jul, 1918	5 Nov, 1918	Stricken 1938
O-2	Puget Sound Navy Yard	27 Jul, 1917	24 May, 1918	19 Oct, 1918	Broken up 1945
O-3	Fore River Shipbuilding Company	2 Dec, 1916	29 Sep, 1917	13 Jun, 1918	Broken up 1946
O-4	Fore River Shipbuilding Company	4 Dec, 1916	20 Oct, 1917	29 May, 1918	Broken up 1946
O-5	Fore River Shipbuilding Company	8 Dec, 1916	11 Nov, 1917	8 Jun, 1918	Collision 28 Oct, 1923
O-6	Fore River Shipbuilding Company	6 Dec, 1916	25 Nov, 1917	12 Jun, 1918	Broken up 1946
O-7	Fore River Shipbuilding Company	14 Feb, 1917	16 Dec, 1917	4 Jul, 1918	Broken up 1946
O-8	Fore River Shipbuilding Company	27 Feb, 1917	31 Dec, 1917	11 Jul, 1918	Broken up 1946
O-9	Fore River Shipbuilding Company	15 Feb, 1917	27 Jan, 1918	27 Jul, 1918	Lost 20 Jun, 1941
O-10	Fore River Shipbuilding Company	27 Feb, 1917	21 Feb, 1918	17 Aug, 1918	Broken up 1946
O-11	Lake Torpedo Boat Company	6 Mar, 1916	29 Oct, 1917	19 Oct, 1918	Broken up 1930
O-12	Lake Torpedo Boat Company	6 Mar, 1916	29 Sep, 1917	18 Oct, 1918	Broken up 1931
O-13	Lake Torpedo Boat Company	6 Mar, 1916	27 Dec, 1917	27 Nov, 1918	Broken up 1930
O-14	California Shipbuilding Company	6 Jul, 1916	6 May, 1918	1 Oct, 1918	Broken up 1930
O-15	California Shipbuilding Company	21 Sep, 1916	12 Feb, 1918	27 Aug, 1918	Broken up 1930
O-16	California Shipbuilding Company	7 Oct, 1916	9 Feb, 1918	1 Aug, 1918	Broken up 1930