| Career | |
|---|---|
| Name: | HMS E21 |
| Builder: | Vickers, Barrow |
| Laid down: | 29 July 1915 |
| Commissioned: | 1 October 1915 |
| Fate: | Sold, 14 December 1921 |
| General characteristics | |
| Class and type: | E class submarine |
| Displacement: | 662 long tons (673 t) surfaced 807 long tons (820 t) submerged |
| Length: | 181 ft (55 m) |
| Beam: | 15 ft (4.6 m) |
| Propulsion: | 2 × 1,600 hp (1,193 kW) diesel 2 × 840 hp (626 kW) electric 2 screws |
| Speed: | 15 knots (28 km/h; 17 mph) surfaced 10 knots (19 km/h; 12 mph) submerged |
| Range: | 3,000 nmi (5,600 km) at 10 kn (19 km/h; 12 mph) surfaced 65 nmi (120 km) at 5 kn (9.3 km/h; 5.8 mph) submerged |
| Complement: | 30 |
| Armament: | • 5 × 18 in (457 mm) torpedo tubes (2 bow, 2 beam, 1 stern) • 1 × 12-pounder gun |
HMS E21 was a British E class submarine built by Vickers, Barrow-in-Furness. She was laid down on 29 July 1915 and was commissioned on 1 October 1915.
HMS E21 was sold on 14 December 1921.
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