SM U-111

She departed 26 March on her first war patrol, operating in the Irish Sea and western entrance to the English Channel, sinking two steamers and returning to Kiel and 23 April. Her second patrol began 27 May, sailing from Heligoland Bight via Muckle Flugga to the western English Channel. She sank at least one confirmed steamer, and returned the same way, arriving 24 June. Her third patrol, between 25 August and 29 September, was via Fastnet and Scillies into the Irish Sea, where she was hampered by British A/S patrols and obtained no sinkings.

She was the only submarine which had a clergyman on board (Wilhelm Meinhold, {{ill|military chaplain|lt=Marinepfarrer|de|Militärgeistlicher|display=1}}).

U-111 surrendered at Harwich, England 20 November 1918, after the Armistice. On 7 April 1919, under the command of Lieutenant Commander Freeland A. Daubin, she sailed for the United States after 12 days of preparations and testing.{{cite news |author= |title=U-111 Shows Latest German Mechanism |work=The New York Times |location=New York |date=23 April 1919 |page=12 }} On her mast the United States flag flew above the Reich War Flag. She arrived first at Portland, Maine on 18 April 1919, and then in New York City, New York on 19 April 1919 where U-111 docked at the Brooklyn Navy Yard.{{cite news |author= |title=Foe Sub Reaches Portland |work=The Washington Times |location=Washington, D.C. |date=20 April 1919 |page=37 }}{{cite news |author= |title=Hun U-Boat at New York. |work=The Daily Banner |location=Cambridge, Maryland |date=21 April 1921 |page=4 }} The U-111, along with four other captured German submarines that were brought to the United States, were used to promote the sale of the Victory Liberty Loan.{{cite news |author= |title=Prize Gunners In War Drill To Boost Drive |work=The Washington Herald |location=Washington, D.C. |date=23 April 1919 |pages=1, 3 }} The U-111 can be seen in a short newsreel film after her arrival on YouTube.{{cite AV media |title=Captured U-boat U-111 moored at New York port |medium=film |url=https://www.youtube.com/watch?v=jCdjDTfCUfI |archive-url=https://ghostarchive.org/varchive/youtube/20211220/jCdjDTfCUfI |archive-date=2021-12-20 |url-status=live|access-date=11 November 2018 |location=New York }}{{cbignore}}

Originally the U-164 was supposed to come to the United States, but it was found in such atrocious shape that the U-111 was substituted.{{cite web |url=https://www.history.navy.mil/content/history/nhhc/research/histories/ship-histories/danfs/u/u-111.html |title=U-111 |author= |date=20 October 2015 |website=Naval History and Heritage Command |publisher=United States Navy |access-date=9 November 2018 |quote=The crew assigned to U-164 found the submarine in such atrocious condition that it was impossible to ready her for the Victory Bond drive-the ostensible reason for which she had been acquired. For that reason, American authorities in England arranged to secure the substitution of U-111 for the cannibalized and dilapidated U-164.}} The other ships that were brought over to the United States were U-117, U-140, UB-88, UB-148, and UC-97. All sailed to America under their own power except U-140 which was towed.{{cite book |last1=Gibson |first1=R.H. |last2=Prendergast |first2=Maurice |date=2002 |title=The German Submarine War 1914-1918 |location=Penzance, England |publisher=Periscope Publishing Ltd. |page=377 |isbn=1-904381-08-1}} These submarines were listed in U.S. Navy records as the Ex-German Submarine Expeditionary Force.{{cite book |author= |title=Navy Directory, April 1, 1919 |location=Washington, D.C. |publisher=United States Government Printing Office |page=512 |date=1919 }}

By early September 1919 the U-111 had completed a head-to-head comparison test against the American submarine USS S-3 (SS-107).{{cite news |author= |title=Our Submarine Wins U-Boat Test |work=The New York Times |location=New York |date=7 September 1919 |page=9 }} It was found that, "The American boat is speedier, has a greater radius of action and is much more habitable than the German boats. Naval officers are of the opinion that the American submarine is the more seaworthy."{{cite news |author= |title=U.S. Sub Beats Germany's Best |work=Madison Daily Leader |location=Madison, Wisconsin |date=15 October 1919 |page=5 }} A summary of the results of the tests from this article are shown in the following table.{{cite magazine |author= |title=Revival of Our Oldest Navy-Yard |magazine=Scientific American |location=New York, New York |publisher=Scientific American Publishing Company |date=10 January 1920 |pages=39, 47, 50–51 }}

During the period of October 1919 to April 1920 U-111 was used for mechanical efficiency experiments off the coast of Florida and Cuba. During these trials she achieved better speeds than in the test results shown above. She was able to go 17.08 knots on the surface, and the submerged speed was almost one knot better than the Germans were able to achieve. The submarine traveled over 11,000 miles, there were no problems during her operation, and the only maintenance performed was of a routine nature (cleaning, painting, etc.). She then made her way to Portsmouth, New Hampshire for decommissioning and destruction.{{cite magazine |author= |title="Der Tag" in America |magazine=Our Navy |location=Floral Park, New York |publisher=Out Navy Publishing Company |date=October 1920 |volume=XIV |issue=6 |pages=7–8 }}

The U-111's final days on the seas were supposed to conclude in 1921. On 18 June 1921, while being towed from Portsmouth, New Hampshire, to be used as a target for aerial bombing by airplanes, she started to take on water. She sank about three miles off the coast of Cape Henry, Virginia, in 35 feet of water, well short of the 50 miles offshore where the tests were to take place. The stern of the submarine remained protruding above the water.{{cite news |last=Lee |first=Richard |date=19 June 1921 |title=Submarine U-111, Former German Craft, Goes Down |work=Richmond Times-Dispatch |location=Richmond, Virginia |page=1 }}{{cite news |author= |title=U-Boat For Target Sinks |work=The Sunday Star |location=Washington, D.C. |date=19 June 1921 |page=1 }} Considered a navigation hazard, she was raised on 14 August 1922 by the USS Falcon, placed on pontoons, brought back to Norfolk Navy Yard, where she sank again in Number 3 dry dock before it could be pumped out.{{cite news |author= |title=To Raise U-Boat Sunk Off Cape Henry |work=The New York Times |location=New York |date=8 June 1922 |page=4 }}{{cite news |author= |title=To Bury Former U-Boat Deep in the Atlantic |work=Richmond Times-Dispatch |location=Richmond, Virginia |date=16 August 1922 |page=3 }}{{cite news |author= |title="Spurlos Versenkt" Is Fate Awaiting Former German Submarine U-111 |work=The Lakeland Evening Telegram |location=Lakeland, Florida |date=18 August 1922 |page=1 }} The submarine was refloated one more time, patched up, and on 30 August 1922 she made a final journey to sea.{{cite news |author= |title=Ready For Her Burial |work=The Lakeland Evening Telegram |location=Lakeland, Florida |date=29 August 1922 |page=1 }} The U-111 was sunk on 31 August 1922 when her hatches were opened, and the USS Falcon set off a depth charge by the sub. Her remains are approximately 400 feet below the ocean surface near the Winter Quarters Shoal lightship along the Virginia coast.{{cite news |author= |title=Notorious U-Boat Sent To Bottom Off Virginia Coast |work=The Evening Star |location=Washington, D.C. |date=1 September 1922 |page=10 }}{{cite news |author= |date=2 September 1922 |title=Navy Raises U-Boat and Sinks Her at Sea, to Fulfill Treaty |page=1 |work=The New York Times |location=New York |url=https://www.nytimes.com/1922/09/02/archives/navy-raises-uboat-and-sinks-her-at-sea-to-fulfill-treaty.html}}

The exact site of U-111's remains had been lost to history until September 5, 2022 when shipwreck explorers, using an ROV, identified the wreckage of U-111 in 400 feet of water 40 miles off the coast of Virginia.{{Cite web |last=Romey |first=Kristin |date=2022-09-30 |title=Exclusive: Wreck of fabled WWI German U-boat found off Virginia |url=https://www.nationalgeographic.co.uk/history-and-civilisation/2022/09/exclusive-wreck-of-fabled-wwi-german-u-boat-found-off-virginia |access-date= |website=National Geographic |language=en-gb}}

File:U 111 at New York 1919.jpg|U-111 at New York City, 1919

File:United States Flag flying above a German Imperial War Flag on U-111 (28369953872).jpg|United States and German flags flying above U-111

File:Lot-11274-12 (29694595914).jpg|U-111 at New York City, 24 April 1919

File:Lot-11274-13 (30208836932).jpg|4" gun of U-111 at New York City, 24 April 1919

{{reflist|group=Note}}

"U-111 Exposed: the Truth about its Discovery, Identification, and Treachery," by Gary Gentile, ISBN 978-1-883056-61-2.

{{reflist}}{{reflist|group=$1}}

• {{cite book

|last1=Gröner

|first1=Erich

|last2=Jung

|first2=Dieter

|last3=Maass

|first3=Martin

|translator-last1=Thomas

|translator-first1=Keith

|translator-last2=Magowan

|translator-first2=Rachel

|year=1991

|title=U-boats and Mine Warfare Vessels

|volume=2

|series=German Warships 1815–1945

|location=London

|publisher=Conway Maritime Press

|isbn=0-85177-593-4

|ref=CITEREFGröner1991

}}

• {{cite book |title=Der Handelskrieg mit U-Booten. 5 Vols |last=Spindler |first=Arno |orig-year=1932|year=1966|publisher= Mittler & Sohn. Vols. 4+5, dealing with 1917+18, are very hard to find: Guildhall Library, London, has them all, also Vol. 1-3 in an English translation: The submarine war against commerce|location=Berlin }}
• {{cite book |title=Room 40: British Naval Intelligence 1914-1918|last=Beesly |first=Patrick |year=1982 |publisher= H Hamilton |location=London |isbn=978-0-241-10864-2 }}
• {{cite book |title=A Naval History of World War I|last=Halpern |first=Paul G. |year=1995 |publisher=Routledge |location=New York |isbn=978-1-85728-498-0 }}
• {{cite book |title=Die Unterseeboote der Kaiserlichen Marine |last=Roessler |first=Eberhard |year=1997 |publisher= Bernard & Graefe |location=Bonn |isbn=978-3-7637-5963-7 }}
• {{cite book |title=Die U-Boote des Kaisers |last=Schroeder |first=Joachim |year=2002 |publisher= Bernard & Graefe |location=Bonn |isbn=978-3-7637-6235-4 }}
• {{cite book |title=Room 40: German Naval Warfare 1914-1918. Vol I., The Fleet in Action|last=Koerver |first=Hans Joachim |year=2008 |publisher=LIS Reinisch |location=Steinbach |isbn=978-3-902433-76-3 }}
• {{cite book |title=Room 40: German Naval Warfare 1914-1918. Vol II., The Fleet in Being|last=Koerver |first=Hans Joachim |year=2009 |publisher=LIS Reinisch |location=Steinbach |isbn=978-3-902433-77-0 }}

• [http://www.u54.suedholland-ferienhaus.de/html/s_m__u_54.html Photos of cruises of German submarine U-54 in 1916-1918.]
• [https://web.archive.org/web/20091130023342/http://www.europafilmtreasures.eu/PY/269/see-the-film-the_enchanted_circle A 44 min. German film from 1917 about a cruise of the German submarine U-35.]
• {{cite Uboat.net

|id=111

|name=U 111

|type=1sub

|accessdate=26 January 2015

}}

• [http://germannavalwarfare.info/indexbr.htm Room 40:] {{Webarchive|url=https://web.archive.org/web/20181015003000/http://germannavalwarfare.info/indexbr.htm |date=15 October 2018 }} original documents, photos and maps about World War I German submarine warfare and British Room 40 Intelligence from The National Archives, Kew, Richmond, UK.

{{German Type U 93 submarines}}

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Category:World War I submarines of Germany

Category:German Type U 93 submarines

Category:Ships built in Kiel

Category:1917 ships

Category:U-boats commissioned in 1917