HMS Acheron (H45)

The 1927 construction programme for the Royal Navy included orders for a destroyer leader ({{HMS|Codrington|D65|2}}) and eight destroyers of the A-class, the first class of destroyers to be built for the Royal Navy since the end of the First World War, and a development of the prototype destroyers {{HMS|Amazon|D39|2}} and {{HMS|Ambuscade|D38|2}}.{{harvnb|English|1993|pp=13–15}}{{harvnb|Friedman|2009|pp=195, 202}} John I. Thornycroft & Company's destroyer, Acheron, was to have experimental high pressure machinery.{{harvnb|Friedman|2009|p=202}}

Acheron was {{convert|323|ft|m|2|abbr=on}} long overall, {{convert|320|ft|m|2|abbr=on}} at the waterline and {{convert|312|ft|m|2|abbr=on}} between perpendiculars, with a beam of {{convert|32|ft|3|in|m|abbr=on}} and a mean draught of {{convert|12|ft|3|in|m|abbr=on}}. Displacement was {{convert|1350|LT|t|abbr=on}} standard and {{convert|1773|LT|t|abbr=on}} full load.{{harvnb|Whitley|2000|p=97}} Three Thornycroft three-drum boilers fed steam at {{convert|500|psi|kPa|abbr=on}} and {{convert|750|°F|°C K|abbr=on}} to Parsons geared steam turbine, which drove two propeller shafts.{{harvnb|Whitley|2000|pp=97–98}} The machinery was rated at {{convert|34000|shp|kW|abbr=on}}, giving a speed of {{convert|35.25|kn|mph km/h|abbr=on}}. 345 t of oil was carried, giving a range of {{convert|4080|nmi|mi km|abbr=on}} at {{convert|15|kn|mph km/h|abbr=on}}.{{harvnb|Lenton|1970|p=71}}

As built, Acheron had a main gun armament of four QF 4.7-inch (120 mm) Mk IX guns in single mounts, in two superfiring pairs in front of the bridge and aft of the superstructure. These guns could only elevate to 30 degrees and so were only useful for surface fire.{{harvnb|Hodges|Friedman|1979|pp=9, 12}} Anti-aircraft armament consisted of two {{convert|40|mm|1|adj=on}} QF 2-pounder Mk II 'pom-pom' autocannons, backed up by four .303 in (7.7 mm) machine guns. The ship was fitted with two above-water quadruple mounts for British 21 inch torpedo torpedoes. The A-class were fitted with the Two-Speed Destroyer Sweep minesweeping equipment to allow sweeping ahead of the fleet at high speeds, which meant that the anti-submarine outfit was reduced,{{harvnb|Hodges|Friedman|1979|p=12}} with three depth charge racks and six depth charges,{{harvnb|Lenton|1970|pp=68–69}}{{harvnb|Whitley|2000|p=98}} The A-class destroyers were given space for an ASDIC system, but it was not initially fitted.{{harvnb|Friedman|2009|p=197}} The ship had a crew of 138 officers and other ranks.

Acheron was ordered on 29 May 1928 from Thornycroft's Woolston, Hampshire yard under the 1927 Naval Estimates. Acheron was laid down on 29 October 1928 and was launched a year later on 18 March 1930,{{harvnb|English|1993|p=15}} with Katharine, Lady Parsons as sponsor.{{cite news |title=Launch of H.M.S. Acheron |newspaper=The Times |date=19 March 1930 |issue=45465 |page=11}} The destroyer was commissioned on 12 October 1931 for trials and completed the next day.{{harvnb|English|1993|pp=15, 19}} She was the fifth ship named Acheron to serve with the Royal Navy.{{harvnb|Colledge|Warlow|2006|p=2}}

Acheron suffered from a number of mechanical problems associated with her machinery, which persisted throughout the ship's career.{{harvnb|English|1993|p=19}} These problems convinced the Admiralty not to continue with experiments with high boiler pressures, with later destroyer classes using conservative steam conditions.{{harvnb|Friedman|2009|p=198}} Trials of the ship and her machinery continued until June 1932, after which the destroyer underwent modifications. On 17 October 1932, five workmen were overcome by fumes when working in Acheron{{'}}s engine room when the ship was at Portsmouth dockyard. The men were taken to Royal Hospital Haslar for recovery.{{cite news |title=News in Brief: Overcome by Fumes in a Destroyer |newspaper=The Times |date=17 October 1932 |issue=46266 |page=18}}

On 19 October 1932, Acheron recommissioned, joining the 3rd Destroyer Flotilla serving with the Mediterranean Fleet. The 3rd Flotilla returned to Britain in 1935, with Acheron undergoing defect repair at Portsmouth.{{cite news|title=The Services: Royal Navy: News in Brief |newspaper=The Times |date=13 August 1935 |issue=47141 |page=7}} Acheron{{'}}s crew transferred to the old destroyer {{HMS|Wessex|D43|2}} which replaced Acheron in the 3rd Destroyer Flotilla while the newer ship was being repaired. Acheron returned to the 3rd Flotilla to replace Wessex when her repairs were complete, again exchanging her crew with Wessex.{{cite news |title=The Services: Royal Navy: Destroyer Relief |newspaper=The Times |date=4 September 1935 |issue=47160 |page=18}}{{harvnb|English|2019|p=93}} Acheron{{'}}s stay in the Mediterranean was short, however, as she returned to British waters in June 1936, undergoing a further series of full power sea trials before undergoing a refit at Portsmouth that lasted from July 1936 to February 1937.

On completion of the refit, Acheron was transferred to second-line duties, replacing Ambuscade as tender to HMS Vernon, the Royal Navy's torpedo school.{{harvnb|English|1993|pp=12, 19}} From June to July 1937, Acheron was fitted with Asdic. On 1 November 1937, Acheron collided with a barge while leaving Portsmouth harbour. The destroyer received a {{convert|20|ft|m|abbr=on}} tear above the waterline on her starboard side, and was under repair until 6 December.{{cite news |title=News in Brief: Destroyer in Collision |newspaper=The Times |date=2 November 1937 |issue=47831 |page=13}} After repair, Acheron replaced {{HMS|Verity|D63|2}} as emergency destroyer at Portsmouth.{{cite news |title=The Services: Royal Navy: Destroyers' New Service |newspaper=The Times |date=22 December 1937 |issue=47874 |page=3}} In March 1938, Acheron again returned to Portsmouth Dockyard for another refit and repairs to her turbines, these lasting until December that year. In January 1939, she replaced {{HMS|Windsor|D42|2}} as a gunnery training destroyer with HMS Vernon. When the Second World War broke out in September 1939, she was under repair at Portsmouth.

On completion of repairs, Acheron joined the 18th Destroyer Flotilla, carrying out local duties around Portsmouth until December 1939 when she underwent further machinery repairs at Portsmouth, which continued until 23 March 1940. The ship then joined the 16th Destroyer Flotilla of the Home Fleet, based at Scapa Flow. The flotilla was then deployed in the North Western Approaches and the North Sea. After the German invasion of Norway on 9 April 1940, Acheron was deployed with the flotilla on convoy defence and fleet screening duties in support of the military landings in Norway.

On 17 April, she and {{HMS|Arrow|H42|2}} left Rosyth accompanying the cruisers {{HMS|Galatea|71|2}}, {{HMS|Arethusa|26|2}}, {{HMS|Carlisle|D67|2}} and {{HMS|Curacoa|D41|2}}, for Operation Sickle, the landing of troops from the 5th Leicestershire and 8th Sherwood Foresters at Åndalsnes and Molde. On arrival on the evening of 18 April, the two destroyers together with Galatea and Arethusa landed their troops at Åndalsnes, with the destroyers going alongside Galatea to disembark their troops, while the other two cruisers landed their troops at Molde. The landings were unopposed, and the force departed early on 19 April.{{sfn|Battle Summary - No. 17, 1951|pp=81–82}} On 24 April, Acheron, together with the destroyers Arrow and {{HMS|Griffin|H31|2}} and the cruisers {{HMS|Birmingham|C19|2}}, {{HMS|Manchester|15|2}} and {{HMS|York|90|2}} left Rosyth on another trooping and supply run to Åndalsnes, with the six ships carrying nearly 1600 men and 300 tons of stores. They arrived at the Romsdalsfjord on the evening of 26 April, and after finishing disembarkation, the destroyers and York set out for Britain, but encountered a suspicious trawler flying the Netherlands flag when leaving the fjord. When Arrow approached the trawler, which was actually the German Schelswig (Schiff 37), the trawler raised the German ensign and rammed Arrow, before being sunk by Arrow and Birmingham. Arrow was badly damaged by the collision, and Acheron and Griffin were tasked with escorting her back to home. They encountered another German trawler, Schiff 26 (ex-Julius Pickenpack), which was captured by a boarding party from Griffin and taken back to Scapa Flow.{{sfn|Battle Summary - No. 17, 1951|p=85}}{{sfn|Rohwer|2005|p=21}} From 30 April 1940, Acheron, together with the destroyers {{HMS|Antelope|H36|2}} and {{HMS|Beagle|H30|2}} was part of the escort for the aircraft carrier {{HMS|Glorious||2}} which joined up with the carrier {{HMS|Ark Royal|91|2}} on 1 May to help to cover the evacuation of Allied troops from central Norway (Åndalsnes, Molde and Namsos).{{sfn|Home Fleet Destroyer Command War Diaries: March–September 1940|loc=Tuesday, 30th April 1940}}{{sfn|Battle Summary - No. 17, 1951|p=89}}{{sfn|Hobbs|2013|p=73}} Acheron returned to Scapa Flow with the two carriers on 3 May, before departing later that day to reinforce the escort for the evacuation convoy from Namsos.{{sfn|Home Fleet Destroyer Command War Diaries: March–September 1940|loc=Friday, 3rd May 1940}}

On 31 May, Acheron, {{HMS|Acasta|H09|2}}, {{HMS|Ardent|H41|2}}, {{HMS|Highlander|H44|2}} and {{HMS|Diana|H49|2}} escorted the carriers Glorious and {{HMS|Ark Royal|91|2}} to Norway to cover the final evacuation of British troops from Norway (Operation Alphabet).{{sfn|Home Fleet Destroyer Command War Diaries: March–September 1940|loc=Friday, 31st May 1940}}{{sfn|Hobbs|2013|pp=73, 81}} Acheron, together with Diana and Highlander, remained with Ark Royal after the embarkations had been completed on 8 June, with the carrier and her escort accompanying one of the convoys carrying troops back to Britain.{{sfn|Battle Summary - No. 17, 1951|pp=126, 156}} Acheron then resumed her normal duties with the flotilla. She then operated in the English Channel to escort convoys.

On 21 June, as part of an emergency programme to improve the anti-aircraft capabilities of the Royal Navy's destroyers as a result of lessons leaned from the Norwegian campaign, Acheron had her aft bank of torpedo tubes replaced by a {{convert|3|in|mm|abbr=on}} AA gun.{{sfn|Friedman|2009|p=238}} Whilst sailing {{convert|10|mi|km|abbr=on}} south off St. Catherine's Point on 20 July, she was attacked by German dive bombers, and was damaged by nine near misses. She began repairs at Portsmouth Dockyard on 6 August, but on 24 August she was alongside, with the destroyer {{HMS|Bulldog|H91|2}} berthed outside Acheron, when Portsmouth Dockyard came under air attack. Acheron was near missed by three bombs and hit by one bomb that hit her aft section. The bomb caused severe damage to her steering gear, "Y" gun and hull plating. Two of Acheron{{'}}s crew were killed and another three injured. Bulldog, lying outside Acheron, received minor damage from bomb splinters.{{sfn|H.M. Ships Damaged or Sunk by Enemy Action|1952|p=145}} The damage received in this attack caused Acheron{{'}}s repairs to be extended until December, with her "Y" gun being replaced by a mounting from the destroyer {{HMS|Boadicea|H65|2}}, which had been damaged in June.{{sfn|English|1993|pp=19, 35}} In November, Acheron was nominated for service as gunnery training destroyer.

Repairs were fully completed by 2 December 1940,{{sfn|English|1993|p=19}} and Acheron began post-refit trials.{{sfn|Evans|2010|p=45}} Early on 17 December, Acheron left Portsmouth to carry out steaming trials in the English Channel, making runs over a measured mile off the Isle of Wight. It was still dark and Acheron was starting her second run over the trials course when she struck a mine. The explosion caused a fire forward and a heavy list, and the destroyer settled bows first, sinking within five minutes.{{sfn|Hepper|2022|p=84}}{{sfn|Evans|2010|pp=45, 47}} 167 of the ship's crew were killed, together with 25 dockyard workers.{{sfn|Hepper|2022|p=84}} There were only 19 survivors.{{sfn|English|1993|p=19}}

Acheron{{'}}s sinking was not made public until 26 December 1940.{{cite news |title=Destroyer Lost: H.M.S. Acheron Sunk |newspaper=The Times |date=27 December 1940 |issue=48808 |page=4}}

The wreck site, about {{convert|5|nmi|mi km|abbr=on}} south of St. Catherine's Point was discovered in April 1984.{{sfn|Evans|2010|p=48}} It was designated as a Protected Place under the Protection of Military Remains Act 1986 in 2006.{{cite web | url=http://www.opsi.gov.uk/si/si2008/uksi_20080950_en_1 | title=Statutory Instrument 2008 No. 950 The Protection of Military Remains Act 1986 (Designation of Vessels and Controlled Sites) Order 2008 | access-date=7 August 2008}}

{{Reflist|30em}}

• {{cite book |title=Battle Summary No. 17: Naval Operations of the Campaign in Norway |series=Naval Staff History: Second World War |year=1951 |publisher=Historical Section, Naval Staff, Admiralty |url=https://www.navy.gov.au/media-room/publications/wwii-naval-staff-histories |archive-url=http://webarchive.nla.gov.au/awa/20231102093214/https://www.navy.gov.au/media-room/publications/wwii-naval-staff-histories |archive-date=2 November 2023 |at=[https://web.archive.org.au/awa/20231102093214mp_/http://www.navy.gov.au/sites/default/files/documents/Battle_Summary_17_Part1.pdf part 1 of 4 (pp. 1–50)], [https://webarchive.nla.gov.au/awa/20231102093214/https://www.navy.gov.au/media-room/publications/wwii-naval-staff-histories part 2 of 4 (pp. 51–103)], [https://web.archive.org.au/awa/20231102094409mp_/http://www.navy.gov.au/sites/default/files/documents/Battle_Summary_17_Part3.pdf part 3 of 4 (pp. 104–167)], [https://web.archive.org.au/awa/20231102093214mp_/http://www.navy.gov.au/sites/default/files/documents/Battle_Summary_17_Part4.pdf part 4 of 4 (pp. 169–188)] |access-date=11 May 2024 |ref={{harvid|Battle Summary - No. 17, 1951}} |url-status=live }}
• {{Cite Colledge2006}}
• {{cite book|last=English|first=John|title=Amazon to Ivanhoe: British Standard Destroyers of the 1930s|year=1993|publisher=World Ship Society|location=Kendal, England|isbn=0-905617-64-9}}
• {{cite book |last=English |first=John |title=Grand Fleet Destroyers: Part I: Flotilla leaders and 'V/W' Class Destroyers |year=2019 |publisher=World Ship Society |location=Windsor, UK |isbn=((978-9650769-8-4))}}
• {{cite book |last=Evans |first=Arthur S. |title=Destroyer Down: An Account of HM Destroyer Losses 1939–1945 |year=2010 |location=Barnsley, UK |publisher=Pen & Sword Maritime |isbn=978-1-84884-270-0}}
• {{cite book|last=Friedman|first=Norman|title=British Destroyers From Earliest Days to the Second World War|publisher=Naval Institute Press|location=Annapolis, Maryland|year=2009|isbn=978-1-59114-081-8}}
• {{cite book|last=Haarr|first=Geirr H.|title=The Battle for Norway: April – June 1940|year=2010|publisher=Naval Institute Press|location=Annapolis, Maryland|isbn=978-1-59114-051-1}}
• {{cite book|last=Haarr|first=Geirr H.|title=The German Invasion of Norway, April 1940|year=2009|publisher=Naval Institute Press|location=Annapolis, Maryland|isbn=978-1-59114-310-9|url-access=registration|url=https://archive.org/details/germaninvasionof00geir}}
• {{cite book |last=Hepper |first=David |title=British Warship Losses in the Modern Era 1920–1982 |year=2022 |location=Barnsley, UK |publisher=Seaforth Publishing |isbn=978-1-3990-9766-6}}
• {{cite book |title=H.M. Ships Damaged or Sunk by Enemy Action: 3rd. SEPT. 1939 to 2nd. SEPT. 1945 |year=1952 |publisher=Admiralty |archiveurl=http://webarchive.nla.gov.au/awa/20231102094409/https://www.navy.gov.au/media-room/publications/hm-ships-enemy-action-wwii |archivedate=2 November 2023 |url=https://www.navy.gov.au/media-room/publications/hm-ships-damaged-or-sunk-enemy-action-wwii |ref={{harvid|H.M. Ships Damaged or Sunk by Enemy Action|1952}} |access-date=12 May 2024 |url-status=live }}
• {{cite book |last=Hobbs |first=David |title=British Aircraft Carriers: Design, Development and Service Histories |year=2013 |location=Barnsley, UK |publisher=Seaforth Publishing |isbn=978-1-84832-138-0}}
• {{cite book |last=Hodges |first=Peter |last2=Friedman |first2=Norman |title=Destroyer Weapons of World War 2 |year=1979 |publisher=Naval Institute Press |location=Annapolis, Maryland, US |isbn=0-87021-929-4}}
• {{cite web |title=Home Fleet Destroyer Command - 1 March to 30 September 1940 |work=Admiralty War Diaries of World War 2 - ADM 199/427 |publisher=Naval-History.net |date=9 January 2015 |url=https://www.naval-history.net/xDKWD-DCHF1940_03-09.htm |access-date=12 May 2024 |ref={{harvid|Home Fleet Destroyer Command War Diaries: March–September 1940}} }}
• {{cite book |last=Lenton |first=H. T. |title=Navies of the Second World War: British Fleet & Escort Destroyers 1 |year=1970 |location=London |publisher=Macdonald & Co. (Publishers) Ltd. |isbn=0-356-02950-6}}
• {{cite book|last=Lenton|first=H. T.|title=British & Empire Warships of the Second World War|publisher=Naval Institute Press|location=Annapolis, Maryland|year=1998|isbn=1-55750-048-7}}
• {{cite book|last=March|first=Edgar J.|title=British Destroyers: A History of Development, 1892–1953; Drawn by Admiralty Permission From Official Records & Returns, Ships' Covers & Building Plans|year=1966|publisher=Seeley Service|location=London |oclc=164893555}}
• {{Cite book|last=Rohwer|first=Jürgen|title=Chronology of the War at Sea 1939–1945: The Naval History of World War Two|publisher=Naval Institute Press|location=Annapolis, Maryland|year=2005|edition=Third Revised|isbn=1-59114-119-2}}
• {{cite book |last=Whitley |first=M. J. |author-link=Michael J. Whitley |title=Destroyers of World War Two: An International Encyclopedia |year=2000 |location=London |publisher=Cassell & Co. |isbn=1-85409-521-8}}

• [http://uboat.net/allies/warships/ship/4342.html HMS Acheron at Uboat.net]
• [http://www.naval-history.net/xGM-Chrono-10DD-13A-Acheron.htm HMS ACHERON - A-class Destroyer]
• {{cite web | url=http://www.opsi.gov.uk/si/si2008/uksi_20080950_en_1 | title=Statutory Instrument 2008 No. 950 The Protection of Military Remains Act 1986 (Designation of Vessels and Controlled Sites) Order 2008 | access-date=7 August 2008}}

{{A class destroyer}}

{{December 1940 shipwrecks}}

{{coord|50|32|N|1|26|W|display=title|source:dewiki}}

{{DEFAULTSORT:Acheron (H45)}}

Category:A- and B-class destroyers

Category:Ships built in Southampton

Category:1930 ships

Category:World War II destroyers of the United Kingdom

Category:World War II shipwrecks in the English Channel

Category:Protected wrecks of the United Kingdom

Category:Maritime incidents in December 1940

Category:Ships sunk by mines

Category:Ships built by John I. Thornycroft & Company