United Kingdom (retired)
Traveling under the surface to search, track, and / or engage or reconnoiter areas.
Active patroling of vital waterways and maritime areas; can also serve as local deterrence against airborne and seaborne threats.
Serving in support (either firepower or material) of the main surface fleet in Blue Water environments.
2 x Admiralty Standard Range 16 (SR16) VMS diesel generators with 2 x Electric motors outputting 3,000 horsepower to 2 x Shafts astern.
(11,900 miles | 19,151 km)
1 knot = 1.15 mph; 1 nm = 1.15 mile; 1 nm = 1.85 km
8 x 21" (533mm) torpedo tubes at the bow (all bow-facing).