Mine-Warfare Boats
(MSB, MSL) Built Since WWII
In the 1950s, the Navy built a series of Minesweeping Boats (MSB) and another of Minesweeping Launches (MSL). There appear to have been 54 MSBs and 56 MSLs, but the records are very sketchy. The standard MSB was 44 tons and 57 feet long, while the MSL was 10 tons and 36 feet long.
| Builder | LDT | LOA | Built | Customer | Notes | ||
| Minesweeping Boats (MSB) | |||||||
| MSB-1 | Norfolk NSY | 44 | 57 | 1946 | US Army | early design, to USN 1949, discarded 1960s | |
| MSB-2 | Norfolk NSY | 44 | 57 | 1946 | US Army | early design, to USN 1949, to South Korea 1962 as Pi Bong (MSB-1) | |
| MSB-3 | Mare Island NSY | 44 | 57 | 1946 | US Army | early design, to USN 1949, discarded 1960s | |
| MSB-4 | Mare Island NSY | 44 | 57 | 1946 | US Army | early design, to USN 1949, to Taiwan 1962 | |
| MSB-5 | Trumpy Yachts | 44 | 57 | 1952 | US Navy | to Pate Museum 1973, scrapped 2011 | |
| MSB-6 | Trumpy Yachts | 44 | 57 | 1952 | US Navy | ||
| MSB-7 | Trumpy Yachts | 44 | 57 | 1952 | US Navy | ||
| MSB-8 | Trumpy Yachts | 44 | 57 | 1952 | US Navy | ||
| MSB-9 | Trumpy Yachts | 44 | 57 | 1952 | US Navy | ||
| MSB-10 | Simms Bros. | 44 | 57 | 1953 | US Navy | ||
| MSB-11 | Simms Bros. | 44 | 57 | 1953 | US Navy | later Junie B 1971, foundered 1976 | |
| MSB-12 | Simms Bros. | 44 | 57 | 1953 | US Navy | later MS-12 1966, Flamingo, NLD 1990 | |
| MSB-13 | Simms Bros. | 44 | 57 | 1953 | US Navy | ||
| MSB-14 | Tacoma boat | 44 | 57 | 1952 | US Navy | sunk in Vietnam 1967 | |
| MSB-15 | Tacoma boat | 44 | 57 | 1952 | US Navy | sunk in Vietnam 1966 | |
| MSB-16 | Tacoma boat | 44 | 57 | 1952 | US Navy | ||
| MSB-17 | Tacoma boat | 44 | 57 | 1952 | US Navy | ||
| MSB-18 | Tacoma boat | 44 | 57 | 1952 | US Navy | ||
| MSB-19 | South Coast Co. | 44 | 57 | 1952 | US Navy | ||
| MSB-20 | South Coast Co. | 44 | 57 | 1952 | US Navy | ||
| MSB-21 | South Coast Co. | 44 | 57 | 1952 | US Navy | sold 1974 as Cheri Lyn (ON 555202) | |
| MSB-22 | South Coast Co. | 44 | 57 | 1952 | US Navy | ||
| MSB-23 | Defoe SB | 44 | 57 | 1956 | US Navy | prototype of fiberglass-hulled design, burned | |
| MSB-25 | Trumpy Yachts | 44 | 57 | 1954 | US Navy | to Panama 1993 as Santa Clara (L-15), retired 1996 | |
| MSB-26 | Trumpy Yachts | 44 | 57 | 1954 | US Navy | ||
| MSB-27 | Trumpy Yachts | 44 | 57 | 1954 | US Navy | ||
| MSB-28 | Trumpy Yachts | 44 | 57 | 1954 | US Navy | to Panama 1993 as Nombre de Dios (L-16) | |
| MSB-29 | Trumpy Yachts | 81 | 80 | 1954 | US Navy | prototype of larger design, to Panama 1993 as Punta Mala (P-205) | |
| MSB-30 | Peterson Builders | 44 | 57 | 1954 | US Navy | ||
| MSB-31 | Peterson Builders | 44 | 57 | 1954 | US Navy | later HOC-1 1973, Sumo (ON 544687) | |
| MSB-32 | Peterson Builders | 44 | 57 | 1954 | US Navy | ||
| MSB-33 | Peterson Builders | 44 | 57 | 1954 | US Navy | later Taku 1973 (ON 546698) | |
| MSB-34 | Peterson Builders | 44 | 57 | 1954 | US Navy | later Sea Psalm 1975 (ON 566408), Ericsson | |
| MSB-35 | Owens Yachts | 44 | 57 | 1954 | US Navy | ||
| MSB-36 | Owens Yachts | 44 | 57 | 1954 | US Navy | ||
| MSB-37 | Owens Yachts | 44 | 57 | 1954 | US Navy | later Jo Ann 1972 (ON 539833) | |
| MSB-38 | Owens Yachts | 44 | 57 | 1954 | US Navy | later Harbor Queen 1977 (ON 582589) | |
| MSB-39 | Owens Yachts | 44 | 57 | 1954 | US Navy | ||
| MSB-40 | Simms Bros. | 44 | 57 | 1954 | US Navy | ||
| MSB-41 | Simms Bros. | 44 | 57 | 1954 | US Navy | to Panama 1993 as Bastimentos (L-17), retired 2003 | |
| MSB-42 | Simms Bros. | 44 | 57 | 1954 | US Navy | ||
| MSB-43 | Simms Bros. | 44 | 57 | 1954 | US Navy | ||
| MSB-44 | Simms Bros. | 44 | 57 | 1954 | US Navy | ||
| MSB-45 | 44 | 57 | 1954 | US Navy | sunk in Vietnam 1967 | ||
| MSB-46 | 44 | 57 | 1954 | US Navy | |||
| MSB-47 | 44 | 57 | 1954 | US Navy | |||
| MSB-48 | 44 | 57 | 1954 | US Navy | |||
| MSB-49 | 44 | 57 | 1954 | US Navy | sunk in Vietnam 1967 | ||
| MSB-50 | 44 | 57 | 1954 | US Navy | |||
| MSB-51 | 44 | 57 | 1954 | US Navy | |||
| MSB-52 | 44 | 57 | 1954 | US Navy | |||
| MSB-53 | 44 | 57 | 1954 | US Navy | |||
| MSB-54 | 44 | 57 | 1954 | US Navy | sunk in Vietnam 1966 | ||
| Minesweeping Launches (MSL) | |||||||
| MSL-1 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-2 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-3 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-4 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-5 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-6 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-7 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-8 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-9 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-10 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-11 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-12 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-13 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-14 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-15 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-16 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-17 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-18 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-19 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-20 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-21 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-22 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-23 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-24 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-25 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-26 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-27 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-28 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-29 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-30 | Sagstad SY | 10 | 36 | 1958 | US Navy | ||
| MSL-31 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-32 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-33 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-34 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-35 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-36 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-37 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-38 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-39 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-40 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-41 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-42 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-43 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-44 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-45 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-46 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-47 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-48 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-49 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-50 | Uniflite | 10 | 36 | 1966 | US Navy | ||
| MSL-51 | Trumpy Yachts | 10 | 36 | 1966 | US Navy | ||
| MSL-52 | Trumpy Yachts | 10 | 36 | 1966 | US Navy | ||
| MSL-53 | Trumpy Yachts | 10 | 36 | 1966 | US Navy | ||
| MSL-54 | Trumpy Yachts | 10 | 36 | 1966 | US Navy | ||
| MSL-55 | Trumpy Yachts | 10 | 36 | 1966 | US Navy | ||
| MSL-56 | Trumpy Yachts | 10 | 36 | 1966 | US Navy | ||