SM U-84

For other ships of the same name, see German submarine U-84.
Career (German Empire)
Name: U-84
Ordered: 23 June 1915
Builder: Germaniawerft, Kiel
Yard number: Werk 254
Laid down: 25 October 1915
Launched: 22 July 1916
Commissioned: 7 October 1916
Fate: 26 January 1918 - Possibly rammed and depth charged by PC62 in St George's Channel and sunk at 51°53′N 5°44′W / 51.883°N 5.733°WCoordinates: 51°53′N 5°44′W / 51.883°N 5.733°W. 40 dead (all hands lost).[1]
General characteristics
Class and type:German Type U 81 submarine
Displacement:808 tons surfaced
946 tons submerged
1160 tons (total)
Length:70.06 m (overall)
55.55 m (pressure hull)
Beam:6.30 m (overall)
4.15 m (pressure hull)
Draught:4.02 m
Propulsion:2400 hp surfaced
1200 hp submerged
Speed:16.8 knots surfaced
9.1 knots submerged
Range:11,220 miles at 8 knots surfaced 56 miles at 5 knots submerged
Complement:39 men
Armament:12 torpedoes (4/2 in bow/stern tubes)
105mm deck gun with 140 rounds [2]
Service record
Part of: Imperial German Navy
IV Flotilla
3 Dec 1916 - 26 Jan 1918
Commanders: Kptlt Walter Roehr[3]
17 Oct 1916 - 26 Jan 1918
Operations: 8 patrols
Victories: 28 ships sunk 83,127 GRT
7 ships damaged 42,149 GRT
2 ships taken as prize 3,462 GRT

SM U-84 was one of the 329 submarines serving in the Imperial German Navy (Kaiserliche Marine) in World War I. U-84 was engaged in the naval warfare and took part in the First Battle of the Atlantic.[4]

Initially U-81 to U-83 had one 10.5 cm gun with 140-240 rounds. U-84 - U-86 on the other hand had two 8.8 cm guns. In 1917 U-84 - U-86 were refitted with a single 10.5 cm gun (240 rounds)[1]

Summary of Raiding Career

Date Name Nationality Tonnage
(GRT)		 Fate[5]
14 December 1916 Aamot  Norway 1,362 Captured as a prize
18 December 1916 Malcolm  Sweden 2,100 Captured as a prize
9 January 1917 Alexandrian  United Kingdom 4,467 Damaged
10 January 1917 Bergenhus  Norway 3,606 Sunk
12 January 1917 Auchencrag  United Kingdom 3,916 Sunk
15 January 1917 Kinpurney  United Kingdom 1,944 Sunk
15 January 1917 Omsk  Denmark 1,574 Sunk
20 January 1917 Bulgarian  United Kingdom 2,515 Sunk
20 January 1917 Neuquen  United Kingdom 3,583 Sunk
17 February 1917 Bayonne  France 2,589 Sunk
17 February 1917 Romsdalen  United Kingdom 2,548 Sunk
18 February 1917 Berrima  United Kingdom 11,137 Damaged
18 February 1917 Hunsworth  United Kingdom 2,991 Damaged
18 February 1917 Juno  Norway 2,416 Sunk
18 February 1917 Valdes  United Kingdom 2,233 Sunk
21 February 1917 Dukat  Norway 1,408 Sunk
22 February 1917 Invercauld  United Kingdom 1,416 Sunk
13 April 1917 Argyll  United Kingdom 3,547 Sunk
13 April 1917 Lime Branch  United Kingdom 5,379 Damaged
18 April 1917 Cragoswald  United Kingdom 3,235 Sunk
18 April 1917 Rowena  United Kingdom 3,017 Sunk
19 April 1917 Elswick Manor  United Kingdom 3,943 Sunk
20 April 1917 Malakand  United Kingdom 7,653 Sunk
1 July 1917 Bachi  Spain 2,184 Sunk
1 July 1917 Demerara  United Kingdom 11,484 Damaged
4 July 1917 Goathland  United Kingdom 3,044 Sunk
7 July 1917 Condesa  United Kingdom 8,557 Sunk
7 July 1917 Oxø  Norway 831 Sunk
12 August 1917 Ursus Minor  Norway 623 Sunk
13 August 1917 HMS Bergamot  Royal Navy 1,290 Sunk
24 November 1917 Actaeon  United States 4,999 Sunk
1 December 1917 Antonios Stathatos  Greece 2,743 Sunk
2 December 1917 Birchgrove  United Kingdom 2,821 Sunk
9 January 1918 Bayvoe  United Kingdom 2,979 Sunk
10 January 1918 Cardiff  United Kingdom 2,808 Damaged
12 January 1918 Chateau Laffite  France 1,913 Sunk
17 January 1918 Messidor  United Kingdom 3,883 Damaged

References

  1. ↑ 1.0 1.1 Uboat.net U84
  2. ↑ Uboat.net type 81
  3. ↑ "Walter Roehr (Royal House Order of Hohenzollern)". Uboat.net. Retrieved 20 January 2015.
  4. ↑ "U-84". Retrieved 25 January 2010.
  5. ↑ "SM U-84 successes". UBoat.net. Retrieved 20 January 2015.