Editing Balao-class submarine (section)

===Cargo submarine===

[[USS Barbero|'' Barbero'']] was converted to a cargo submarine and redesignated as an [[hull classification symbol|SSA]] in 1948. The forward engine room, after torpedo room, and all reload torpedo racks were gutted to provide cargo space. From October 1948 until March 1950, she took part in an experimental program to evaluate her capabilities as a cargo carrier. Experimentation ended in early 1950, and she was decommissioned into the reserve on 30 June 1950. In 1955, she was converted to a Regulus missile submarine and redesignated as an SSG.<ref>Friedman since 1945, p. 89</ref>