HMS H43

{{Use dmy dates|date=December 2016}} {{Use British English|date=December 2016}} {{Infobox ship |section1={{Infobox ship/image | image = HMS H43 Submarine.jpg | image_caption = }}

|section2={{Infobox ship/career | hide_header = | country = United Kingdom | flag = {{shipboxflag|United Kingdom|naval}} | name = HMS ''H43'' | owner = | namesake = | ordered = | builder = Armstrong Whitworth, Newcastle Upon Tyne | yard_number = | laid_down = 4 October 1917 | launched = 3 February 1919 | acquired = | commissioned = 25 November 1919 | decommissioned = | in_service = | out_of_service = | struck = | reinstated = | fate = Sold for scrapping, November 1944 }}

|section3={{Infobox ship/characteristics | hide_header = | header_caption = | class = H-class submarine | displacement =*{{convert|423|LT|t|0|abbr=on}} surfaced *{{convert|510|LT|t|0|abbr=on}} submerged | length = {{convert|171|ft|0|in|m|abbr=on}} | beam = {{convert|15|ft|4|in|m|abbr=on}} | draught = | propulsion =*1 × {{convert|480|hp|0|abbr=on}} diesel engine *2 × {{convert|620|hp|0|abbr=on}} electric motors | speed =*{{convert|11.5|kn|lk=in}} surfaced *{{convert|9|kn}} submerged | range =*{{convert|2985|nmi|km|abbr=on}} at {{convert|7.5|kn|abbr=on}} surfaced *{{convert|130|nmi|km|abbr=on}} at {{convert|2|kn|abbr=on}} submerged | endurance = | test_depth = | complement = 22 | sensors = | EW = | armament = *4 × {{convert|21|in|mm|0|abbr=on}} bow torpedo tubes *8 × 21-inch torpedoes

| notes = }} }} '''HMS ''H43''''' was a British H-class submarine built by Armstrong Whitworth, Newcastle Upon Tyne. She was laid down on 4 October 1917 and was commissioned on 25 November 1919. The submarine had a complement of twenty-two crew members. ''H43'' was one of the seven H-class submarines to survive to the end of World War II . ''H43'' was sold in November 1944 and was scrapped at Troon in 1945.

==Design== Like all post-''H20'' British H-class submarines, ''H43'' had a displacement of {{convert|423|LT|t}} at the surface and {{convert|510|LT|t}} while submerged.<ref name="batcru">{{cite book |last1=Gardiner |first1=Robert |last2=Gray |first2=Robert |title=Conway's All the World's Fighting Ships 1906-1921 |date=1985 |publisher=Conway Maritime Press |location=London |isbn=0-85177-245-5 |page=92}}</ref> It had a total length of {{convert|171|ft|m}},<ref name="Walters2004">{{cite book|author=Derek Walters|title=The History of the British 'U' Class Submarine|url=https://books.google.com/books?id=VyeJ9DOXcOAC&pg=PA2|year=2004|publisher=Casemate Publishers|isbn=978-1-84415-131-8|pages=2–}}</ref> a beam of {{convert|15|ft|4|in}}, and a draught of {{convert|12|m}}.<ref name="Colledge"/> It contained a diesel engines providing a total power of {{convert|480|hp}} and two electric motors each providing {{convert|320|hp}} power.<ref name="Colledge">{{Colledge: Ships RN|year=2006}} Retrieved from [http://www.naval-history.net/WW1NavyBritishShips-Dittmar3WarshipsA.htm#10 Naval-History] on 20 August 2015.</ref> The use of its electric motors made the submarine travel at {{convert|11|kn|km/h mph}}. It would normally carry {{convert|16.4|LT|t}} of fuel and had a maximum capacity of {{convert|18|LT|t}}.<ref>{{cite web|url=http://www.gwpda.org/naval/hpatsubs.htm|title=Building History and Technical Details for Canadian CC-Boats and the Original H-CLASS|publisher=Electric Boat Company Holland Patent Submarines|author=J. D. Perkins|year=1999|access-date=20 August 2015}}</ref>

The submarine had a maximum surface speed of {{convert|13|kn|km/h mph}} and a submerged speed of {{convert|10.5|kn|km/h mph}}. Post-''H20'' British H-class submarines had ranges of {{convert|2985|nmi|km mi}} at speeds of {{convert|7.5|kn|km/h mph}} when surfaced.<ref name="batcru"/><ref name="Colledge"/> ''H43'' was fitted with an anti-aircraft gun and four {{convert|21|in|adj=on|0}} torpedo tubes. Its torpedo tubes were fitted to the bow and the submarine was loaded with eight {{convert|21|in|adj=on|0}} torpedoes.<ref name="batcru"/> It is a Holland 602 type submarine but was designed to meet Royal Navy specifications. Its complement was twenty-two crew members.<ref name="batcru"/>

==Operational use== In July 1940 ''H43'' delivered Lt. Hubert Nicholle to German-occupied Guernsey to undertake a reconnaissance and successfully recovered him three days later.<ref>{{cite book |first=Robert |last=Jackson |title=Churchill's Channel War 1939-45 |date=20 March 2013 |publisher=Osprey Publishing, 2013 |isbn=9781472801319}}</ref>

==References== {{reflist}}

==Bibliography== * {{cite book |last1=Hutchinson |first1=Robert |title=Jane's submarines : war beneath the waves from 1776 to the present day |date=2001 |publisher=HarperCollins |location=London |isbn=978-0007105588}}

{{DEFAULTSORT:H43}} Category:British H-class submarines Category:1919 ships Category:World War II submarines of the United Kingdom Category:Royal Navy ship names Category:Ships built by Armstrong Whitworth