page_title: USS Mackerel (SST-1)
hierarchical_section_title: USS Mackerel (SST-1)
caption_attribution_description: English: United States Navy training submarine
context_page_description: USS Mackerel (SST-1), originally known as USS T-1 (SST-1), was the lead ship of the T-1-class of training submarines. She was the second submarine of the United States Navy named for the mackerel, a common food and sport fish, and was in service from 1953 to 1973. She was one of the smallest operational submarines ever built for the U.S. Navy.
context_section_description: USS Mackerel (SST-1), originally known as  USS T-1 (SST-1), was the lead ship of the T-1-class of training submarines. She was the second submarine of the United States Navy named for the mackerel, a common food and sport fish, and was in service from 1953 to 1973. She was one of the smallest operational submarines ever built for the U.S. Navy.
caption: USS Mackerel (SST-1)
    Off Key West 1964 "... with rubber girdle"
    Original Navy photo documentation on reverse
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