United Kingdom (retired)
Operators
1917
Commissioned
United Kingdom
National Origin
59
Complement
K-class
Hull Class
18
Number-in-Class
K1; K2; K3; K4; K5; K6; K7; K8; K9; K10; K11; K12; K13; K14; K15; K16; K17; K26
Ships-in-Class
Submerged Attack
Traveling under the surface to search, track, and / or engage or reconnoiter areas.
Maritime Patrol
Active patroling of vital waterways and maritime areas; can also serve as local deterrence against airborne and seaborne threats.
Fleet Support
Serving in support (either firepower or material) of the main surface fleet in Blue Water environments.
339.0 feet
(103.33 meters)
Length
26.7 feet
(8.14 meters)
Beam
20.1 feet
(6.13 meters)
Draught
1,980
tons
Displacement
2,560
tons
Displacement (Submerged)
2 x Yarrow oil-fired boilers with 1 x Parsons or Brown-Curtis geared steam turbines developing 10,500 shaft horsepower to 2 x screws; 4 x Electric motors developing 1,440 horsepower.
Propulsion
24.0 knots
(27.6 mph)
Surface Speed
15.0 knots
(17.3 mph)
Submerged Speed
799 nm
(920 miles | 1,481 km)
Range
1 knot = 1.15 mph; 1 nm = 1.15 mile; 1 nm = 1.85 km
4 x 18" (460mm) torpedo tubes
4 x 18" (450mm) torpedo tubes
2 x 18" torpedo tubes on swiveling mounts (later removed).
2 x 4" (102mm) deck guns
1 x 3" (76mm) deck gun