The Fleet Rehabilitation and Modernization program of the United States Navy extended the lives of World War II-era destroyers by shifting their mission from a surface attack role to that of a submari
USS George K. MacKenzie, after her FRAM I conversion.
Sarsfield (top) as delivered and Rowan (bottom) after FRAM I.
Nicholas, a Fletcher-class destroyer, after her FRAM II upgrade.
Bryce Canyon with FRAM II-modernised Lyman K. Swenson, Collett and Blue. Shelton, closest to camera, received FRAM I (note the ASROC launcher on the mid-deck).
The Allen M. Sumner class was a group of 58 destroyers built by the United States during World War II. Another twelve ships were completed as destroyer minelayers. The class was named for Allen Melanc
Fleet Rehabilitation and Modernization
…and 10 Type 16 limited conversions, pending the construction of new Type 12 and Type 14 frigates. Among the destroyers, conversion of the Gearing and Allen M. Sumner classes took precedence over the Fletcher and Benson classes. Destroyer conversions relied on experience with Fletcher-class destroyers modernized for…
USS Lyman K. Swenson in 1955
USS De Haven c.1970 fitted with FRAM II modifications.