# SM UC-65

SM UC-65 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 12 January 1916 and was launched on 8 July 1916. She was commissioned into the German Imperial Navy on 7 November 1916 as SM UC-65. In eleven patrols UC-65 was credited with sinking 106 ships, either by torpedo or by mines laid. UC-65 was torpedoed and sunk by HMS C15 on 3 November 1917.

## Design

A Type UC II submarine, UC-65 had a displacement of 427 tonnes (420 long tons) when at the surface and 508 tonnes (500 long tons) while submerged. She had a length overall of 50.35 m (165 ft 2 in), a beam of 5.22 m (17 ft 2 in), and a draught of 3.64 m (11 ft 11 in). The submarine was powered by two six-cylinder four-stroke diesel engines each producing 300 metric horsepower (220 kW; 300 shp) (a total of 600 metric horsepower (440 kW; 590 shp)), two electric motors producing 620 metric horsepower (460 kW; 610 shp), and two propeller shafts. She had a dive time of 48 seconds and was capable of operating at a depth of 50 metres (160 ft).
The submarine had a maximum surface speed of 12 knots (22 km/h; 14 mph) and a submerged speed of 7.4 knots (13.7 km/h; 8.5 mph). When submerged, she could operate for 52 nautical miles (96 km; 60 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 10,420 nautical miles (19,300 km; 11,990 mi) at 7 knots (13 km/h; 8.1 mph). UC-65 was fitted with six 100 centimetres (39 in) mine tubes, eighteen UC 200 mines, three 50 centimetres (20 in) torpedo tubes (one on the stern and two on the bow), seven torpedoes, and one 8.8 cm (3.5 in) Uk L/30 deck gun. Her complement was twenty-six crew members.

## Summary of raiding history

| Date | Name | Nationality | Tonnage | Fate |
| 8 February 1917 | Guillaume Tell | France | 148 | Sunk |
| 8 February 1917 | Mary Ann | United Kingdom | 17 | Sunk |
| 10 February 1917 | Sallagh | United Kingdom | 325 | Sunk |
| 11 February 1917 | Lycia | United Kingdom | 2,715 | Sunk |
| 11 February 1917 | Olivia | United Kingdom | 242 | Sunk |
| 11 February 1917 | Voltaire | United Kingdom | 409 | Sunk |
| 12 February 1917 | Pinna | United Kingdom | 6,288 | Damaged |
| 13 February 1917 | Friendship | United Kingdom | 37 | Sunk |
| 13 February 1917 | Zircon | United Kingdom | 48 | Sunk |
| 14 February 1917 | Ferga | United Kingdom | 791 | Sunk |
| 14 February 1917 | Greenland | United Kingdom | 1,753 | Sunk |
| 14 February 1917 | Inishowen Head | United Kingdom | 3,050 | Sunk |
| 14 February 1917 | Margarita | United Kingdom | 375 | Sunk |
| 15 February 1917 | Afton | United Kingdom | 1,156 | Sunk |
| 15 February 1917 | Kyanite | United Kingdom | 564 | Sunk |
| 16 February 1917 | Queenswood | United Kingdom | 2,710 | Sunk |
| 16 February 1917 | Ville De Bayonne | France | 1,301 | Sunk |
| 19 February 1917 | Alice | France | 18 | Sunk |
| 19 February 1917 | Brigade | United Kingdom | 425 | Sunk |
| 19 February 1917 | Justine Marie | Belgium | 16 | Sunk |
| 19 February 1917 | Saint Louis De Gonzague | France | 53 | Sunk |
| 19 February 1917 | Skrim | Norway | 727 | Sunk |
| 19 February 1917 | Violette | France | 36 | Sunk |
| 25 February 1917 | Saint Joseph | France | 42 | Sunk |
| 25 February 1917 | Vigda | Norway | 1,851 | Sunk |
| 26 February 1917 | Alberdina | Netherlands | 134 | Sunk |
| 26 February 1917 | Algiers | United Kingdom | 2,361 | Sunk |
| 26 February 1917 | Hannah Croasdell | United Kingdom | 151 | Sunk |
| 27 February 1917 | Brunette | France | 104 | Sunk |
| 27 February 1917 | HMT Evadne | Royal Navy | 189 | Sunk |
| 28 February 1917 | Marie Joseph | France | 192 | Sunk |
| 28 February 1917 | Sjøstad | Norway | 1,155 | Sunk |
| 1 March 1917 | Germaine | France | 24 | Sunk |
| 1 March 1917 | Bout De Zan | France | 13 | Sunk |
| 1 March 1917 | Diamond Cross | Belgium | 29 | Sunk |
| 1 March 1917 | Drina | United Kingdom | 11,483 | Sunk |
| 1 March 1917 | Elise II | France | 48 | Sunk |
| 1 March 1917 | Elorn | France | 603 | Sunk |
| 1 March 1917 | General Radiguet | France | 24 | Sunk |
| 1 March 1917 | HMHS Glenart Castle | Royal Navy | 6,824 | Damaged |
| 1 March 1917 | Homocea | France | 58 | Sunk |
| 1 March 1917 | Joseph Adolphine | France | 21 | Sunk |
| 1 March 1917 | N.D. de Lourdes | France | 47 | Sunk |
| 1 March 1917 | Reine des Anges | France | 47 | Sunk |
| 1 March 1917 | Saint Joseph | France | 20 | Sunk |
| 1 March 1917 | Sainte Famille | France | 25 | Sunk |
| 1 March 1917 | Seigneur | France | 53 | Sunk |
| 1 March 1917 | Sarus | United Kingdom | Unknown | Damaged |
| 24 March 1917 | Bruyere | France | 100 | Sunk |
| 24 March 1917 | Ennistown | United Kingdom | 689 | Sunk |
| 24 March 1917 | Fairearn | United Kingdom | 592 | Sunk |
| 24 March 1917 | Howe | United Kingdom | 175 | Sunk |
| 24 March 1917 | Korsnaes | Norway | 732 | Sunk |
| 25 March 1917 | Adenwen | United Kingdom | 3,798 | Sunk |
| 25 March 1917 | Brandon | United Kingdom | 130 | Sunk |
| 25 March 1917 | Fringante | France | 124 | Sunk |
| 25 March 1917 | Poseidon | Greece | 2,589 | Sunk |
| 27 March 1917 | Kelvinhead | United Kingdom | 3,063 | Sunk |
| 28 March 1917 | Ardglass | United Kingdom | 778 | Sunk |
| 28 March 1917 | Dagali | Norway | 742 | Sunk |
| 28 March 1917 | Harvest Home | United Kingdom | 103 | Sunk |
| 28 March 1917 | Laima | Russian Empire | 148 | Sunk |
| 28 March 1917 | Snowdon Range | United Kingdom | 4,662 | Sunk |
| 28 March 1917 | Wychwood | United Kingdom | 1,985 | Sunk |
| 28 March 1917 | Guillemot | United Kingdom | Unknown | Sunk |
| 30 March 1917 | HMS Puma | Royal Navy | 1,459 | Damaged |
| 6 April 1917 | Thelma | Norway | 1,350 | Sunk |
| 7 April 1917 | Lapland | United Kingdom | 18,565 | Damaged |
| 9 April 1917 | City of New York | United States | 10,798 | Damaged |
| 26 April 1917 | Agnes Cairns | United Kingdom | 146 | Sunk |
| 26 April 1917 | Athole | United Kingdom | 150 | Sunk |
| 26 April 1917 | Bretagne Et Vendee | France | 79 | Sunk |
| 27 April 1917 | Burrowa | United Kingdom | 2,902 | Sunk |
| 28 April 1917 | Alu Mendi | Spain | 2,104 | Sunk |
| 1 May 1917 | Helen | United Kingdom | 322 | Sunk |
| 1 May 1917 | Ivrig | Norway | 1,197 | Sunk |
| 1 May 1917 | W. D. Potts | United Kingdom | 112 | Sunk |
| 2 May 1917 | Amber | United Kingdom | 401 | Sunk |
| 2 May 1917 | Derrymore | United Kingdom | 485 | Sunk |
| 2 May 1917 | Dora | United Kingdom | 296 | Sunk |
| 2 May 1917 | Earnest | United Kingdom | 111 | Sunk |
| 2 May 1917 | Morion | United Kingdom | 299 | Sunk |
| 2 May 1917 | Saint Mungo | United Kingdom | 402 | Sunk |
| 2 May 1917 | Taizan Maru | Japan | 3,527 | Sunk |
| 4 May 1917 | New Design No.2 | United Kingdom | 66 | Sunk |
| 4 May 1917 | Pilar De Larrinaga | United Kingdom | 4,136 | Sunk |
| 4 May 1917 | Strumble | United Kingdom | 45 | Sunk |
| 4 May 1917 | Victorious | United Kingdom | 39 | Sunk |
| 7 May 1917 | Maude | United Kingdom | 93 | Sunk |
| 8 May 1917 | San Patricio | United Kingdom | 9,712 | Damaged |
| 22 May 1917 | HMT Merse | Royal Navy | 296 | Sunk |
| 17 June 1917 | HMT Fraser | Royal Navy | 310 | Sunk |
| 17 June 1917 | HMS Tartar | Royal Navy | 850 | Damaged |
| 18 June 1917 | Gauntlet | United Kingdom | 58 | Sunk |
| 18 June 1917 | Væring | Denmark | 2,157 | Sunk |
| 19 June 1917 | Morinier | United Kingdom | 3,804 | Damaged |
| 24 June 1917 | Aghia Paraskevi | Greece | 2,795 | Sunk |
| 24 June 1917 | Constantinos | Greece | 3,014 | Sunk |
| 24 June 1917 | Kong Haakon | Norway | 2,231 | Sunk |
| 24 June 1917 | Taigetos | Greece | 2,961 | Sunk |
| 25 June 1917 | Petritzis | Greece | 3,692 | Sunk |
| 28 June 1917 | Lizzie Ellen | United Kingdom | 114 | Sunk |
| 20 July 1917 | Fluent | United Kingdom | 3,660 | Sunk |
| 26 July 1917 | HMS Ariadne | Royal Navy | 11,000 | Sunk |
| 27 July 1917 | Bellagio | United Kingdom | 3,919 | Damaged |
| 27 July 1917 | Candia | United Kingdom | 6,482 | Sunk |
| 28 July 1917 | Saint Emilion | France | 1,112 | Sunk |
| 19 August 1917 | General Dutemple | France | 585 | Sunk |
| 25 August 1917 | Garm | Norway | 725 | Sunk |
| 25 August 1917 | Nerma | Denmark | 689 | Sunk |
| 29 August 1917 | Laura C. Anderson | United States | 960 | Sunk |
| 31 August 1917 | Erissos | Greece | 2,885 | Damaged |
| 1 September 1917 | Peronne | France | 3,342 | Sunk |
| 25 September 1917 | Paolina | United States | 1,337 | Sunk |
| 3 October 1917 | Tasmania | Kingdom of Italy | 3,662 | Sunk |
| 18 October 1917 | HMD Comrades | Royal Navy | 63 | Sunk |
| 31 October 1917 | North Sea | United Kingdom | 1,711 | Sunk |
| 2 November 1917 | Branksome Hall | United Kingdom | 4,262 | Damaged |