F-1 (SS-20)

Date of Accident: 16 December, 1917

Returned to Service: No

Collided with sister ship F-3 (SS-22) while manuevering on the surface during an exercise off the California coast. F-1 was struck on the port side, just forward of the engine room and sank in approximately 10 seconds.

Nineteen men lost, three survivors.

(U.S. Navy DANFS 2: 381)

Contine to next submarine, H-1 (SS-28).

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This page last updated on 31 July, 1997