It was on the morning of March 25, 1915, that F-1, F-3, and F-4 left Honolulu for local operations. F-4 did not return and the eventual detection and recovery was a classic of naval salvage.

She was later “interned” at the bottom of Pearl Harbor after it was discovered that she had suffered a leak in the. battery compartment and the crew had been killed by chlorine gas. This was the Navy’s first submarine disaster.

The loss of F-1 so soon after this dealt the fledgling, submarine service a heavy blow

The F-1 Started out as the Carp (SS-20)

The submarine torpedo boat Carp (SS-20), the latest and most efficient type of underwater fighter, was launched on September 6, 1911 at the Union Iron Works. Miss Josephine Tynan, little daughter of Joseph. J. Tynan, general manager of the Iron Works, christened the fish-like craft, and the launching was accomplished on time and without a hitch. On the launching platform were officers of the army and navy, members of the national legislature, representatives of foreign governments – and ” men and women prominent in society. Before the launching, W. R. Sands, representing the Electric – Boat Company, pinned a dainty gold watch on little’ Miss Tynan’s breast, and President McGregor of the Union Iron Works “decorated the girl with a jeweled locket.