The was a large class of submarine chasers built during World War I for the United States Navy. They were ordered in very large numbers in order to combat attacks by German U-boats, with 442 vessels built from 1917 to 1919. This article lists details of the third 50 ships of the class.
| Number | Builder | Commissioned | Fate | Notes | |
|---|---|---|---|---|---|
| Elco Bayonne, New Jersey | 2 March 1918 | Sold 24 June 1921.[1] | Based at Plymouth, England[2] and Brest, France during World War I Re-acquired by US Navy in 1942 as YP-180, resold in 1945, later named Fidus, Palace II and Fiscus III. Scrapped 1971.[3] | ||
| Elco | 12 March 1918 | To War Shipping Administration 3 January 1947. | Sunk by collision with on 11 February 1942 but salvaged on 24 February 1942 and repaired.[4] | ||
| Elco | 7 March 1918 | Sank at pierside September 1939 Later salvaged and scuttled by burning. | Stationed at Brest, France during World War I. Lent to Michigan Naval Militia on 1 July 1926 and to Buffalo Council, Boy Scouts of America on 25 September 1936. | ||
| Elco | 12 March 1918 | Sold 22 December 1922. | |||
| Elco | 9 November 1917 | Sold 20 July 1921. | |||
| 31 December 1917 | Sold 10 November 1921. | ||||
| Charleston Navy Yard | 19 January 1918 | Sold 24 June 1921. | |||
| Charleston Navy Yard | 12 February 1918 | Transferred to War Department 18 September 1918. | |||
| Charleston Navy Yard | 12 February 1918 | Sold 24 June 1921. | |||
| Charleston Navy Yard | 30 March 1918 | Sold 24 June 1921. | Based at Plymouth, England and Queenstown (now Cobh), Ireland in World War I. Took part in minesweeping operations in North Sea after end of war.[5] | ||
| Charleston Navy Yard | 30 March 1918 | Sold 24 June 1921. | Based at Plymouth, England during World War I. | ||
| Charleston Navy Yard | 22 April 1918 | Sold 24 June 1921. | Based at Key West.[6] | ||
| Charleston Navy Yard | 3 May 1918 | Sold 24 June 1921. | |||
| Naval Station, New Orleans | 28 March 1918 | Sold 24 June 1921. | Based at Pensacola.[7] | ||
| Naval Station, New Orleans | 3 May 1918 | Sold 24 June 1921. | |||
| 14 November 1917 | Sold 24 June 1921. | ||||
| Norfolk Navy Yard | November 1917 | Destroyed in fire 22 December 1917. | |||
| Norfolk Navy Yard | 26 November 1917 | Sold 24 June 1921. | |||
| Norfolk Navy Yard | 19 November 1917 | Sold 20 December 1921. | |||
| Norfolk Navy Yard | 4 October 1917 | Sold 20 July 1921 | Served in Atlantic Fleet.[8] | ||
| Norfolk Navy Yard | 16 October 1917 | Sold 24 June 1921. | |||
| Norfolk Navy Yard | 21 October 1917 | Sold 24 June 1921. | Used as fishing vessel after sale. Renamed Effort III in 1927 and Belboy III in 1949. Scrapped 1957.[9] | ||
| Norfolk Navy Yard | 5 November 1917 | Sold 24 June 1921. | Served off East coast of United States during war.[10] | ||
| Norfolk Navy Yard | 11 December 1917 | Sold 11 May 1921. | Based at Corfu during war. Served in Mediterranean post-war.[11] | ||
| Norfolk Navy Yard | 27 December 1917 | Sold 24 June 1921. | Served in Azores.[12] | ||
| Norfolk Navy Yard | 14 January 1918 | Sold 24 June 1921. | |||
| Norfolk Navy Yard | 15 January 1918 | Sold 24 June 1921. | Served in Mediterranean.[13] Used as ferry/mail boat between 1924 and 1957.[14] | ||
| Norfolk Navy Yard | 18 January 1918 | Sold in Italy June 1919. | Served on Otranto Barrage.[15] | ||
| Norfolk Navy Yard | 17 January 1918 | Sold 24 June 1921. | Served on Otranto Barrage.[16] | ||
| Norfolk Navy Yard | 21 December 1917 | Sold 11 May 1921. | |||
| Norfolk Navy Yard | 19 January 1918 | Sold 24 June 1921. | Served on Otranto Barrage.[17] | ||
| Norfolk Navy Yard | 2 February 1918 | Sunk in collision 5 June 1918. | |||
| Norfolk Navy Yard | 13 March 1918 | Sold 20 July 1921. | |||
| Norfolk Navy Yard | 13 March 1918 | Sold 20 July 1921. | |||
| Norfolk Navy Yard | 13 March 1918 | Sold 24 June 1921. | |||
| Norfolk Navy Yard | 19 March 1918 | Sold 24 June 1921. | |||
| 14 December 1917 | Sold 24 June 1921. | ||||
| Hodgdon Brothers East Boothbay, Maine | 24 January 1918 | Sold 24 June 1921. | Served on US East coast during war.[18] | ||
| Hodgdon Brothers East Boothbay, Maine | - | - | Cancelled | ||
| 5 October 1918 | To France as C-43. | Sunk in collision with the destroyer, 3 July 1918. | |||
| Hartman-Greiling Green Bay, Wisconsin | 22 December 1917 | Sunk in collision with | Planned to be transferred to France | ||
| 30 March 1918 | To France as C-34 | ||||
| Rocky River Dry Dock Rocky River, Ohio | 10 November 1917 | Sold 9 September 1936. | Based at Plymouth, England during World War I[19] | ||
| 30 March 1918 | Sold to state of Florida 3 February 1923. | Based at Philadelphia during war.[20] | |||
| Vinyard Shipbuilding Milford, Delaware | 13 March 1918 | Sold 7 July 1921. | |||
| Vinyard Shipbuilding Milford, Delaware | 30 March 1918 | To France as C-35. | |||
| 13 December 1917 | Sold 25 February 1922. | Served in Otranto Barrage.[21] | |||
| L E Fry Clayton, New York | 10 December 1917 | Sold 24 June 1921. | Based at Plymouth, England during World War I[22] | ||
| 15 January 1918 | Sold 24 June 1921. | ||||
| Dubuque Boat & Boiler Works Dubuque, Iowa | 2 March 1918 | Sold 24 June 1921. |