|HMS Umpire (N82)|
|Laid down:||1 January 1940|
|Launched:||30 December 1940|
|Commissioned:||10 July 1941|
|Fate:||Sunk in collision 19 July 1941|
Surfaced - 540 tons standard, 630 tons full load
Submerged - 730 tons
|Length:||60 m (196 ft 10 in)|
|Beam:||4.90 m (16 ft 1 in)|
|Draught:||4.62 m (15 ft 2 in)|
2 shaft diesel-electric
11.25 knots (20.8 km/h) max surfaced
10 knots (19 km/h) max submerged
4 bow internal 21-inch (533 mm) torpedo tubes - 8 torpedoes
1 - 3-inch (76 mm) gun
HMS Umpire (N82) was a Royal Navy U-class submarine built at Chatham Dockyard and sunk in an accident nine days after commissioning with the loss of 22 men. The submarine was sunk whilst en route from Chatham to join the 3rd Submarine Flotilla at Dunoon, under the command of Lieutenant Mervyn Wingfield. From Dunoon she was to carry out a single working-up patrol in the North Sea before heading to the Mediterranean. She stopped overnight at Sheerness and joined a convoy headed North. The submarine suffered engine failure with one of the two diesel engines and as a result fell behind the convoy; the propellers were driven purely by electric motors on the surface and when submerged with no mechanical linkage to the diesel engines. The convoy passed a Southbound convoy around midnight whilst about 12 nautical miles (22 km) off Blakeney, Norfolk, with the two convoys passing starboard to starboard; this was unusual since ships and convoys should pass port to port. No ships showed any lights because of the risk from German E-boats. However, an armed escort trawler, Peter Hendriks in the southbound convoy accidentally struck Umpire sinking her in 18 metres of water.
Four crew members were on the bridge when the submarine sank - Wingfield, the navigator and two lookouts. However only Wingfield survived in the cold water to be picked up by the trawler. Several other personnel also survived, escaping from the sunken wreck using the conning tower or the engine room escape hatch, the majority wearing DSEA. ERA Killen received a British Empire Medal for leaving the submarine wearing DSEA to check for obstructions around the engine room hatch and then returning to the engine room to assist the other crew members in escaping. He remained in the engine room until everyone else there had escaped. 16 of the crew successfully escaped, 22 crew were lost.
- "HMS Umpire (N 82)". Uboat.net. http://uboat.net/allies/warships/ship/3387.html. Retrieved 2007-02-24.
- Edward Young. One of Our submarines. Wordsworth Editions Limited. pp. 46–59. ISBN 1-85326-681-7. Young was on board the submarine when it sank
- "Submarine losses 1904 to present day". Royal Navy Submarine Museum. Archived from the original on 2007-01-02. http://web.archive.org/web/20070102110909/http://www.rnsubmus.co.uk/general/losses.htm#umpire. Retrieved 2007-02-24.
- "Submarine Casualties Booklet". U.S. Naval Submarine School. 1966. http://archive.rubicon-foundation.org/8200. Retrieved 2009-09-08.
- "Protected Wrecks in the UK". Maritime and Coastguard Agency. http://www.mcga.gov.uk/c4mca/mcga-environmental/mcga-dops_row_receiver_of_wreck/mcga-dops-row-protected-wrecks/mcga-dops-sar-row.htm. Retrieved 2007-02-24.
- "Statutory Instrument 2008/0950". Office of Public Sector Information, 1 April 2008. http://www.opsi.gov.uk/si/si2008/uksi_20080950_en_1. Retrieved 2008-07-19.
- Colledge, J. J.; Warlow, Ben (2006) . Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8. OCLC 67375475.
- Hutchinson, Robert (2001). Jane's Submarines: War Beneath the Waves from 1776 to the Present Day. London: HarperCollins. ISBN 978-0-00-710558-8. OCLC 53783010.
- "The wreck of HMS Umpire". John Liddiard Underwater. http://www.jlunderwater.co.uk/old_site/photoix/umpire/index.htm. Retrieved 2007-02-24.
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