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SM UB-29

1915 Type UB II submarine

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 8, 2026
Entity authorityQ7391638
Source-derived summary

SM UB-29 was a German Type UB II submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 30 April 1915 and launched on 31 December 1915. She was commissioned into the German Imperial Navy on 18 January 1916 as SM UB-29.

The submarine sank 36 ships in 17 patrols for a total of 47,107 gross register tons (GRT). UB-29 was supposedly sunk by two depth charges from HMS Landrail south of Goodwin Sands at 51°9′N 1°46′E on 13 December 1916 , although the location of its wreck discovered in Belgian waters, approximately 15 nm NW of Ostend, contradicts this claim. The Landrail might have mistaken UB-29 for another boat, possibly the UC-19.

The UB-29's wreckage – exceptionally well preserved and with the hull still intact – was found by Belgian divers in the summer of 2017, and formally identified in November 2017. Its exact location was not published, in order to enable further research and protection of the site.

Design

A Type UB II submarine, UB-29 had a displacement of 265 tonnes (261 long tons) when at the surface and 291 tonnes (286 long tons) while submerged. She had a total length of 36.13 m (118 ft 6 in), a beam of 4.36 m (14 ft 4 in), and a draught of 3.66 m (12 ft). The submarine was powered by two Benz six-cylinder diesel engines producing a total 267 metric horsepower (263 shp; 196 kW), two Siemens-Schuckert electric motors producing 280 metric horsepower (210 kW; 280 shp), and one propeller shaft.

Editorial summary

The public source identifies “SM UB-29” as 1915 Type UB II submarine. This brief keeps that definition visible, then builds a research path around UB-29, Type and submarine.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1915, 1916, 2017—that can be checked directly. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with UB-29, Type and submarine providing the first useful test.
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A short description can identify a subject without explaining its stakes. For “SM UB-29”, the useful work is to connect “1915 Type UB II submarine” to the records capable of establishing context and consequence.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 8, 2026. The linked authority identifier is Q7391638. Authority coordinates are 51.150, 1.767. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1915, 1916 and 2017.

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Source & attribution

This entry incorporates text from SM UB-29” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.