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Aggressive Class Minesweeper: Laid down 6 October 1952 by the Luders Marine Construction Co., Stamford,
Conn; Launched, 26 February 1954; Commissioned USS Sagacity (AM-469), 20 January 1955; Redesignated MSO-469,
7 February 1955; Decommissioned and struck from the Naval Register, 1 October 1970; Sold for scrapping in 1971 to Steve B.
Clemens, Miami, Fla., for $7,890.
These new minesweepers were smaller and built primarily of wood , with bronze and stainless (non-magnetic)
steel fittings to minimize their magnetic signature. All of the 1950 era MSOs had UQS-1 mine-locating sonar, later updated
with SQQ-14 sonar. MSOs were capable of sweeping for moored, bottom contact, magnetic and acoustic mines.
Specifications: Displacement 630 t.(lt), 755 t.(fl); Length 172'; Beam 35'; Draft 10'; Speed
14 kts; Complement 6 Officers, 74 Enlisted; Armament as built, one single 40mm gun mount, two .50 cal. machine guns; Final
configuration, bow gun replaced by one twin 20mm gun mount, two .50 cal. machine guns remain; Propulsion, four Packard ID1700
diesel engines, two shafts, two controllable pitch propellers.
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WOODEN SHIPS AND IRON MEN a book by CDR David D.Bruhn USN RET. A complete history of our MSO's from 1953
to 1994.To learn more about this excellent minesweeper book please visit CDR Bruhn's website at the link below.
David Bruhn
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UPDATED:JUN 13 2008
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