User Guide

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T-Class
Displacement (in tons): . . . . 1475 when surfaced; 2370 when submerged
Dimensions (in feet): . . . . . . 307 x 27 x 14
Machinery: . . . . . . . . . . . . . . 2 diesel engines; 2 electric motors
Max. Power (in hp): . . . . . . . 5400 surfaced; 2740 submerged
Max. Speed (in knots): . . . . . 20 surfaced, 8.75 submerged
Test Depth (in feet): . . . . . . . 200
Range (in miles): . . . . . . . . . 8000 at 10 knots surfaced
60 at 5 knots submerged
Torpedo Tubes: . . . . . . . . . . 6 forward; 4 aft; 24 torpedoes
Guns: . . . . . . . . . . . . . . . . . . 1 – 5 inch
An increase in displacement of fifteen tons added two torpedoes in front
and increased the total number of torpedoes carried to 24. The vessels in
the T-class had the distinction of being the last peace-time submarines
commissioned, and were thus forced to carry the load for the Navy during
the opening months of the war until the Gato class submarines arrived
later in 1942. The crew complement was 60.
The highest scoring submarine of the Pacific campaign in number of ves-
sels sunk was the Tautog, a T-class submarine, with 26 confirmed sinkings.
SILENT
HUNTER
46 SUBMARINES: T-Class
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Salmon
Displacement (in tons): . . . . 1449 when surfaced; 2198 when submerged
Dimensions (in feet): . . . . . . 310 x 27 x 14
Machinery: . . . . . . . . . . . . . . 2 diesel engines; 2 electric motors
Max. Power (in hp): . . . . . . . 5500 surfaced; 3300 submerged
Max. Speed (in knots): . . . . . 20 surfaced, 9 submerged
Test Depth (in feet): . . . . . . . 256
Range (in miles): . . . . . . . . . 10000 at 10 knots surfaced
85 at 5 knots submerged
Torpedo Tubes: . . . . . . . . . . 4 forward; 4 aft; 20 torpedoes
Guns: . . . . . . . . . . . . . . . . . . 1 – 4 inch
The Salmon class consisted of six submarines which were nearly identical
to the ten submarines of the Sargo class. Both types had been increased in
length by ten feet and had their battery capacity substantially increased for
a submerged cruising range of 80 miles or more. Two additional rear-firing
tubes brought the total up to eight, and the overall torpedo capacity was
increased to 20.
The vessels of these classes had one dangerous problem early in their his-
tory in the form of a faulty hatch covering the main diesel induction. This
caused the loss of Squalus and twenty-three crew members in 1939, and
both Snapper and Sturgeon experienced similar, though not fatal, failures
of the induction hatch during the war.
SILENT
HUNTER
45 SUBMARINES: Salmon