SM U-111

For other ships with the same name, see German submarine U-111.

SM U-111 at sea, 1919
History
German Empire
Name	U-111
Ordered	5 May 1916
Builder	Germaniawerft, Kiel
Yard number	280
Launched	5 September 1917
Commissioned	30 December 1917
Fate	Surrendered to Great Britain 20 November 1918, transferred to the United States Navy 25 March 1919
United States
Name	U-111
Acquired	3 April 1919
Fate	Sunk by USS Falcon 31 August 1922
General characteristics [1]
Class and type	Type U 93 submarine
Displacement	798  t (785 long tons) surfaced 996 t (980 long tons) submerged
Length	71.55 m (234 ft 9 in) (o/a) 56.05 m (183 ft 11 in) (pressure hull)
Beam	6.30 m (20 ft 8 in) (o/a) 4.15 m (13 ft 7 in) (pressure hull)
Height	8.25 m (27 ft 1 in)
Draught	3.76 m (12 ft 4 in)
Installed power	2 × 2,300  PS (1,692  kW; 2,269  shp) surfaced 2 × 1,200 PS (883 kW; 1,184 shp) submerged
Propulsion	2 shafts, 2 × 1.70 m (5 ft 7 in) propellers
Speed	16.4 knots (30.4 km/h; 18.9 mph) surfaced 8.4 knots (15.6 km/h; 9.7 mph) submerged
Range	8,300  nmi (15,400 km; 9,600 mi) at 8 knots (15 km/h; 9.2 mph) surfaced 50 nmi (93 km; 58 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
Test depth	50 m (164 ft 1 in)
Complement	4 officers, 32 enlisted
Armament	6 × 50 cm (19.7 in) torpedo tubes (four bow, two stern) 12-16 torpedoes 1 × 10.5 cm (4.1 in) SK L/45 deck gun 1 × 8.8 cm (3.5 in) SK L/30 deck gun
Service record
Part of:	Imperial German Navy: IV Flotilla Unknown start – 11 November 1918
Commanders:	Kptlt. Hans Beyersdorff [2] 30 December 1917 – 11 November 1918
Operations:	4 patrols
Victories:	3 merchant ships sunk (3,011  GRT)
Service record
Part of:	United States Navy: Ex-German Submarine Expeditionary Force 25 March 1919 - 31 August 1922
Commanders:	LCDR Freeland A. Daubin, 1919 LCDR Garnet Hulings, 1919 - Unknown end
Operations:	Victory Liberty Loan, comparison and operational tests

SM U-111 ^{[Note 1]} was one of the 329 submarines serving in the Imperial German Navy in World War I. She took part in the First Battle of the Atlantic. ^[3]

Completed at Kiel early in January 1918, she went to the Kiel School for shakedown and training until March, when she joined IV Flotilla. ^[4] She was monitored continuously by British Naval Intelligence (Room 40), on which her movement reports are based. All her operations took place in 1918.

Service history

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. ^[4] 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. ^[4] 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. ^[4]

She was the only submarine which had a clergyman on board (Wilhelm Meinhold, Marinepfarrer  [ de ]).

Post War Career

U-111 surrendered at Harwich, England 20 November 1918, after the Armistice. ^[4] 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. ^[5] 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. ^{[6] [7]} 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. ^[8] The U-111 can be seen in a short newsreel film after her arrival on YouTube. ^[9]

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. ^[10] 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. ^[11] These submarines were listed in U.S. Navy records as the Ex-German Submarine Expeditionary Force. ^[12]

By early September 1919 the U-111 had completed a head-to-head comparison test against the American submarine USS S-3 (SS-107). ^[13] 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." ^[14] A summary of the results of the tests from this article are shown in the following table. ^{[14] [15]}

Comparison of German U-111 to American S-3

Characteristic	U-111	S-3
Maximum surface speed	13.8 knots	14.7 knots
Submerged speed	7.8 knots	12.4 knots
Cruise range	8,500 miles at 8 knots	10,000 miles at 11 knots
Number of torpedoes	12	12
Number of guns	Two 4-inch, one forward, one aft	One 4-inch forward
Displacement	830 tons	854 tons
Length	235 feet	231 feet
Beam	21 feet	21.5 feet
Draft	12.5 feet	12.5 feet
Other findings	Congested, overly complicated, difficult to maintain	Habitable, accessible, more seaworthy, decks drier

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. ^[16]

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. ^{[17] [18]} 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. ^{[19] [20] [21]} The submarine was refloated one more time, patched up, and on 30 August 1922 she made a final journey to sea. ^[22] 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. ^{[23] [24]}

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. ^[25]

Summary of raiding history

Date	Name	Nationality	Tonnage [Note 2]	Fate [26] [27]
7 April 1918	Boscastle	United Kingdom	2,346	Sunk by torpedo
28 May 1918	Dronning Margrethe	Denmark	393	Sunk by deck gun
22 June 1918	Rana	Norway	272	Sunk by deck gun

Gallery

• 
  U-111 at New York City, 1919
• 
  United States and German flags flying above U-111
• 
  U-111 at New York City, 24 April 1919
• 
  4" gun of U-111 at New York City, 24 April 1919

Notes

1. "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
2. Tonnages are in gross register tons

References

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

Citations

1. Gröner 1991, pp. 12–14.
2. Helgason, Guðmundur. "WWI U-boat commanders: Hans Beyersdorff". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 26 January 2015.
3. Helgason, Guðmundur. "WWI U-boats: U 111". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 25 January 2010.
4. Koerver, Hans Joachim (2020). The Kaiser's U-Boat Assault on America Germany's Great War Gamble in the First World War. Havertown: Pen & Sword Books Limited. ISBN   978-1-5267-7387-6. OCLC   1202468466.
5. "U-111 Shows Latest German Mechanism". The New York Times. New York. 23 April 1919. p. 12.
6. "Foe Sub Reaches Portland". The Washington Times. Washington, D.C. 20 April 1919. p. 37.
7. "Hun U-Boat at New York". The Daily Banner. Cambridge, Maryland. 21 April 1921. p. 4.
8. "Prize Gunners In War Drill To Boost Drive". The Washington Herald. Washington, D.C. 23 April 1919. pp. 1, 3.
9. Captured U-boat U-111 moored at New York port (film). New York. Archived from the original on 20 December 2021. Retrieved 11 November 2018.
10. "U-111". Naval History and Heritage Command. United States Navy. 20 October 2015. Retrieved 9 November 2018. 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.
11. Gibson, R.H.; Prendergast, Maurice (2002). The German Submarine War 1914-1918. Penzance, England: Periscope Publishing Ltd. p. 377. ISBN   1-904381-08-1.
12. Navy Directory, April 1, 1919. Washington, D.C.: United States Government Printing Office. 1919. p. 512.
13. "Our Submarine Wins U-Boat Test". The New York Times. New York. 7 September 1919. p. 9.
14. "U.S. Sub Beats Germany's Best". Madison Daily Leader. Madison, Wisconsin. 15 October 1919. p. 5.
15. "Revival of Our Oldest Navy-Yard". Scientific American. New York, New York: Scientific American Publishing Company. 10 January 1920. pp. 39, 47, 50–51.
16. ""Der Tag" in America". Our Navy. Vol. XIV, no. 6. Floral Park, New York: Out Navy Publishing Company. October 1920. pp. 7–8.
17. Lee, Richard (19 June 1921). "Submarine U-111, Former German Craft, Goes Down". Richmond Times-Dispatch. Richmond, Virginia. p. 1.
18. "U-Boat For Target Sinks". The Sunday Star. Washington, D.C. 19 June 1921. p. 1.
19. "To Raise U-Boat Sunk Off Cape Henry". The New York Times. New York. 8 June 1922. p. 4.
20. "To Bury Former U-Boat Deep in the Atlantic". Richmond Times-Dispatch. Richmond, Virginia. 16 August 1922. p. 3.
21. ""Spurlos Versenkt" Is Fate Awaiting Former German Submarine U-111". The Lakeland Evening Telegram. Lakeland, Florida. 18 August 1922. p. 1.
22. "Ready For Her Burial". The Lakeland Evening Telegram. Lakeland, Florida. 29 August 1922. p. 1.
23. "Notorious U-Boat Sent To Bottom Off Virginia Coast". The Evening Star. Washington, D.C. 1 September 1922. p. 10.
24. "Navy Raises U-Boat and Sinks Her at Sea, to Fulfill Treaty". The New York Times. New York. 2 September 1922. p. 1.
25. Romey, Kristin (30 September 2022). "Exclusive: Wreck of fabled WWI German U-boat found off Virginia". National Geographic.
26. Helgason, Guðmundur. "Ships hit by U 111". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 26 January 2015.
27. Negulesco, John A. (November 2010). Nonel. Bloomington, Indiana: Xlibris Corporation. p. 147. ISBN   978-1-4535-9209-0.

Bibliography

• Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN   0-85177-593-4.
• Spindler, Arno (1966) [1932]. Der Handelskrieg mit U-Booten. 5 Vols. Berlin: 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.
• Beesly, Patrick (1982). Room 40: British Naval Intelligence 1914-1918. London: H Hamilton. ISBN   978-0-241-10864-2.
• Halpern, Paul G. (1995). A Naval History of World War I. New York: Routledge. ISBN   978-1-85728-498-0.
• Roessler, Eberhard (1997). Die Unterseeboote der Kaiserlichen Marine. Bonn: Bernard & Graefe. ISBN   978-3-7637-5963-7.
• Schroeder, Joachim (2002). Die U-Boote des Kaisers. Bonn: Bernard & Graefe. ISBN   978-3-7637-6235-4.
• Koerver, Hans Joachim (2008). Room 40: German Naval Warfare 1914-1918. Vol I., The Fleet in Action. Steinbach: LIS Reinisch. ISBN   978-3-902433-76-3.
• Koerver, Hans Joachim (2009). Room 40: German Naval Warfare 1914-1918. Vol II., The Fleet in Being. Steinbach: LIS Reinisch. ISBN   978-3-902433-77-0.

External links

• Photos of cruises of German submarine U-54 in 1916-1918.
• A 44 min. German film from 1917 about a cruise of the German submarine U-35.
• Helgason, Guðmundur. "WWI U-boats: U 111". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 26 January 2015.
• Room 40: Archived 15 October 2018 at the Wayback Machine original documents, photos and maps about World War I German submarine warfare and British Room 40 Intelligence from The National Archives, Kew, Richmond, UK.