USS R-4
R-1-class submarine
Service
- as R-528 March 1919 — 18 June 19452,117 days of the war
- Name
- USS R-4
- Pennant / hull number
- SS-81
- Builder
- Fore River Shipbuilding Company, Quincy, Massachusetts
- Ordered
- 29 August 1916
- Laid down
- 16 October 1917
- Launched
- 26 October 1918
- Commissioned
- 28 March 1919
- Decommissioned
- 18 June 1945
- Struck
- 11 July 1945
- Fate
- Sold for scrap, 22 January 1946 (1946)
- Status
- Scrapped
Specifications
- Displacement, surfaced
- 574 long tons (583 t)
- Displacement, submerged
- 685 long tons (696 t)
- Length
- 56.69 m (186 ft)
- Beam
- 5.49 m (18 ft)
- Draught
- 4.57 m (15 ft)
- Speed
- 12.5 knots (23.2 km/h, 14.4 mph)
- Range
- 4,700 nmi (8,704 km)
- Complement
- 29
- Main gun
- 76 mm (3 in)
USS R-4 was a R-1-class submarine built for the United States Navy. She carried the pennant number SS-81. Fore River Shipbuilding Company, Quincy, Massachusetts laid her keel on 16 October 1917. Launched on 26 October 1918, she entered service on 28 March 1919.
The boat displaced 574 long tons surfaced and 685 long tons submerged. She measured 56.7 m (186 ft) long with a beam of 5.5 m (18 ft). Her designed speed was 12.5 knots, and she carried a complement of 29.
Her main battery was one 76 mm (3 in) guns. Her machinery developed 880 bhp.
She was in commission for 2,117 days of the Second World War. She was decommissioned on 18 June 1945. She was struck from the register on 11 July 1945.
She was broken up for scrap on 22 January 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 × NELSECO 6-EB-14 diesel engines
- 2 × Electro-Dynamic Company electric motors
- 2 × 60-cell batteries
- 2 × Propellers
- Power
- 880 bhp diesel
- 934 hp electric
- Armament
- 4 × 21 in torpedo tubes (8 torpedoes)
- 1 × 3 in/50-caliber deck gun
Sister ships
Sources
- Facts harvested from USS R-4 on Wikipedia. Figures only — no wording is taken from it.
- Photograph: U.S. Navy photograph — https://www.navsource.net/archives/08/08081.htm — Public domain — Wikimedia Commons