Recognition Guide Warships of the Second World War
Royal Navy — Submarine N57

HMS Severn (N57)

River-class submarine

Displacement
2,206 long tons (2,241 t)
Length
105.16 m (345 ft)
Beam
8.53 m (28 ft)
Speed
22 knots (40.7 km/h, 25.3 mph)
Complement
61
Main gun
102 mm (4 in)

Service

  1. Royal Navy as HMS Severn? — 23 December 19441,940 days of the war
River-class submarine Particulars
Name
HMS Severn
Pennant / hull number
N57
Builder
Vickers Armstrong, Barrow
Ordered
1931
Launched
16 January 1934
Decommissioned
23 December 1944
Fate
Sold for scrapping, 30 July 1946 (1946)
Status
Scrapped

Specifications

Displacement, surfaced
2,206 long tons (2,241 t)
Displacement, submerged
2,723 long tons (2,767 t)
Length
105.16 m (345 ft)
Beam
8.53 m (28 ft)
Draught
4.85 m (15.9 ft)
Speed
22 knots (40.7 km/h, 25.3 mph)
Range
12,000 nmi (22,224 km)
Complement
61
Main gun
102 mm (4 in)

HMS Severn was a River-class submarine, operated by the Royal Navy. She carried the pennant number N57. She was built by Vickers Armstrong, Barrow. She was launched on 16 January 1934.

Five ships of the class were built.

The boat displaced 2,206 long tons surfaced and 2,723 long tons submerged. She measured 105.2 m (345 ft) long with a beam of 8.5 m (28 ft). Her designed speed was 22 knots, and she carried a complement of 61. Her main battery was of 102 mm (4.0 in) calibre.

She was in commission for 1,940 days of the Second World War. She was decommissioned on 23 December 1944.

She was broken up for scrap on 30 July 1946.

Written from the harvested record. Every figure above is sourced; the wording is this site's own.

Armament and machinery

Armament and machinery
Propulsion
  • 2 shaft diesel electric
  • 2 supercharged diesels 10,000 hp max
  • 2 electric motors 2500 hp
Armament
  • 6 × 21 inch (533 mm) torpedo tubes (bow)
  • 1 × 4 inch Mk XVI deck gun

Sister ships

Sources

  • Facts harvested from HMS Severn (N57) on Wikipedia. Figures only — no wording is taken from it.