HMS H42
| Career |  |
|---|---|
| Name: | HMS H42 |
| Builder: | Armstrong Whitworth, Newcastle Upon Tyne |
| Laid down: | September 1917 |
| Commissioned: | 1 May 1919 |
| Fate: | Sunk in collision 23 March 1922 |
| General characteristics | |
| Class and type: | H class submarine |
| Displacement: | 423 long tons (430 t) surfaced 510 long tons (518 t) submerged |
| Length: | 171 ft 0 in (52.12 m) |
| Beam: | 15 ft 4 in (4.67 m) |
| Propulsion: | 1 × 480 hp (358 kW) diesel engine 2 × 620 hp (462 kW) electric motors |
| Speed: | 11.5 knots (21.3 km/h; 13.2 mph) surfaced 9 knots (17 km/h; 10 mph) submerged |
| Range: | 2,985 nmi (5,528 km) at 7.5 kn (13.9 km/h; 8.6 mph) surfaced 130 nmi (240 km) at 2 kn (3.7 km/h; 2.3 mph) submerged |
| Complement: | 22 |
| Armament: | • 4 × 21 in (533 mm) bow torpedo tubes • 8 × 21 inch torpedoes |
HMS H42 was a British H class submarine built by Armstrong Whitworth, Newcastle Upon Tyne. She was laid down in September 1917 and was commissioned on 1 May 1919.
On 23 March 1922, H42 was practising torpedo attacks against British destroyers steaming off Europa Point, Gibraltar,[1] when she surfaced unexpectedly only 30[1] or 120[2] yards (27 or 110 metres) – sources differ – ahead of the destroyer HMS Versatile. Versatile, making 20 knots, went to full speed astern on her engines and put her helm over hard to port, but had not yet begun to answer her helm when she rammed H42 abaft the conning tower, almost slicing the submarine in half. H42 sank with the loss of all hands. An investigation found H42 at fault for surfacing where she did against instructions.[2][3]
References
- ↑ 2.0 2.1 Submariners Association, Barrow-in-Furness Branch: Boat Database H42
- ↑ Richardson and Hurd 1923, p.31.
- Hutchinson, Robert. Submarines, War Beneath The Waves, From 1776 To The Present Day.
- Richardson, Alexander and Archibald Hurd. (editors). Brassey's Naval and Shipping Annual 1923. London, William Clowes, 1923.
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