Gato-Class

Lead Boat: SS-212, U.S.S. Gato Length: 312′ Beam: 27′ Draft: 17′ (Surface trim) Displacement: 1,800 tons (surfaced); 2,400 tons (submerged) Speed: 20-1/4 knots (surfaced); 8-3/4 knots (submerged) Diving Depth: 300′ (test depth); 450′ (emergency) Range: 20,000 miles Endurance: 75 days Crew: 6-10 (officers); 60-70 (enlisted) Crew size increased as war progressed. Deck Gun: 1 3″/50-calibre, … Read more

Gar-Class

Gar Class Specifications Lead Boat: SS-206, U.S.S. Gar Length: 307′ 2″ Beam: 27′ 7-1/2″ Draft: 14′ 3″ (Surface trim) Displacement: 1,475 tons (surfaced); 2,370 tons (submerged) Speed: 20 knots (surfaced); 8.75 knots (submerged) Diving Depth: 250′ (test depth); ‘ (emergency) Range: 11,000 miles @ 10 knots Endurance: days Crew: 6 officers, 54 enlisted Deck Gun: … Read more

Mackerel-Class

Mackerel Class Specifications Lead Boat: SS-204, U.S.S. Mackerel Length: 243′ 1″ Beam: 22′ 1″ Draft: 14′ 6″ (Surface trim) Displacement: 825 tons (surfaced); 1179 tons (submerged) Speed: 16 knots (surfaced); 11 knots (submerged) Diving Depth: 250′ (test depth) Range: 6,500 miles Crew: 4 officers, 33 enlisted Deck Gun: 1-3″/50-calibre Torpedoes: 4-21″ torpedo tubes (bow), 2-21″ … Read more

Tambor-Class

Tambor Class Specifications Lead Boat: SS-198, U.S.S. Tambor Length: 307′ 2″ Beam: 27′ 3″ Draft: 15′ (Surface trim) Displacement: 1,475 tons (surfaced); 2,370 tons (submerged) Speed: 20 knots (surfaced); 9 knots (submerged) Diving Depth: 250′ (test depth) Range: 11,000 miles Crew: 6 officers, 54 enlisted Deck Gun: 1-3″/50-caliber Torpedoes: 6-21″ torpedo tubes (bow), 4-21″ torpedo … Read more