HMSKempenfelt in August 1933 | |
| History | |
|---|---|
| Name | Kempenfelt |
| Namesake | Rear AdmiralRichard Kempenfelt |
| Awarded | 15 July 1930 |
| Builder | J. Samuel White,Cowes |
| Laid down | 18 October 1930 |
| Launched | 29 October 1931 |
| Completed | 30 May 1932 |
| Fate | Transferred toRoyal Canadian Navy, 19 October 1939 |
| Name | Assiniboine |
| Namesake | Assiniboine River |
| Commissioned | 19 October 1939 |
| Decommissioned | 8 August 1945 |
| Motto | Fideliter (Latin: "Faithfully") |
| Nickname(s) | "Bones" |
| Honours and awards | Atlantic 1939-45, Biscay 1944, English Channel 1944-45[1] |
| Fate |
|
| Badge | Badge: On a field Black a Sword proper between two wings greenover two wavelets Silver and Blue. |
| General characteristics | |
| Class & type | |
| Displacement |
|
| Length | 329 ft (100.3 m)o/a |
| Beam | 33 ft (10.1 m) |
| Draught | 12 ft 6 in (3.8 m) |
| Installed power | 36,000 shp (27,000 kW) |
| Propulsion |
|
| Speed | 36knots (67 km/h; 41 mph) |
| Range | 5,500 nmi (10,200 km; 6,300 mi) at 15 knots (28 km/h; 17 mph) |
| Complement | 145 |
| Armament |
|
HMSKempenfelt was aC-classdestroyer built for theRoyal Navy in the early 1930s. Aflotilla leader, she saw service in theHome Fleet beforeWorld War II and the ship made several deployments to Spanish waters during theSpanish Civil War, enforcing the arms blockade imposed by Britain and France on both sides of the conflict.
Kempenfelt was transferred to theRoyal Canadian Navy (RCN) in 1939 and renamedHMCSAssiniboine. DuringWorld War II, she served as a convoy escort in thebattle of the Atlantic, sinking one German submarine byramming, on anti-submarine patrols during theinvasion of Normandy, and was employed as a troop transport afterVE Day for returning Canadian servicemen, before being decommissioned in mid-1945.
Assiniboine was sold forscrap in 1945, but she ran aground while being towed to the breakers and was not broken up until 1952.
Kempenfelt displaced 1,390 long tons (1,412 t) atstandard load and 1,901 long tons (1,932 t) atdeep load. The ship had anoverall length of 329 feet (100.3 m), abeam of 33 feet (10.1 m) and adraught of 12 feet 6 inches (3.8 m). She was powered byParsons gearedsteam turbines, driving two shafts, which developed a total of 36,000shaft horsepower (27,000 kW) and gave a maximum speed of 36knots (67 km/h; 41 mph). Steam for the turbines was provided by threeYarrowwater-tube boilers.Kempenfelt carried a maximum of 473 long tons (481 t) offuel oil that gave her a range of 5,500nautical miles (10,200 km; 6,300 mi) at 15 knots (28 km/h; 17 mph). The ship's complement was 175 officers and men.[2]

The ship mounted four 45-calibre4.7-inch Mark IX guns in single mounts, designated 'A', 'B', 'X', and 'Y' from front to rear. Foranti-aircraft (AA) defence,Kempenfelt had a singleQF 3-inch 20 cwt[Note 1] AA gun between herfunnels, and two 40-millimetre (1.6 in)QF 2-pounder Mk II AA guns mounted on the aft end of herforecastle deck. The 3-inch (76 mm) AA gun was removed in 1936 and the 2-pounders were relocated to between the funnels. She was fitted with two above-water quadrupletorpedo tube mounts for21-inch torpedoes.[3] Three depth-charge chutes were fitted, each with a capacity of twodepth charges. After World War II began this was increased to 33 depth charges, delivered by one or two rails and two throwers.[4]

The changes made toAssiniboine's armament during the war (dates can only be roughly assigned) were first the replacement of the ship's rear torpedo tube mount by a 12-pounder AA gun and the 2-pounders were exchanged for quadruple Mark I mounts for theQF 0.5-inch Vickers Mk IIImachine gun. Later, 'Y' gun was also removed to allow her depth charge stowage to be increased to at least 60 depth charges. 'X' gun was later removed and the 12-pounder was resited in its place to further increase her depth charge capacity. Later changes included fitting a splitHedgehog anti-submarinespigot mortar on each side of 'A' gun, exchanging her two quadruple .50-calibre Vickers machine guns mounted between her funnels for two Oerlikon 20 mm AA guns, and the addition of two Oerlikon guns to hersearchlight platform. The ship'sdirector-control tower andrangefinder above thebridge were removed in exchange for aType 271 target indicationradar. AType 286 short-range surface search radar was also added as was anHF/DFradio direction finder on a shortmainmast.[5]
The ship was ordered on 15 July 1930 fromJ. Samuel White atCowes under the 1929 Programme.Kempenfelt waslaid down on 18 October 1930,launched on 30 September 1931,[6] as the 2nd ship to carry the name,[7] and completed on 30 May 1932.[6] Built as a flotilla leader, she displaced 15 long tons more than the rest of her class and carried an extra 30 personnel. These personnel formed the staff of the Captain (D) of the flotilla.[2]
Kempenfelt was assigned to the2nd Destroyer Flotilla, of the Home Fleet, after her commissioning.[6] The ship briefly mounted an experimental 5.1-inch (130 mm) gun on 'B' mount for evaluation purposes during this time; it was replaced by the standard 4.7-inch gun.[8] She was based atRosyth for most of the rest of 1932, but visited the Mediterranean between January and March 1933 before returning home. The ship was given a refit atDevonport that ended in January 1934. Shortly afterwards,Kempenfelt participated in the Home Fleet's tour of theWest Indies that ended in March. The ship visited various Scandinavian ports during the remainder of the year.[6] She participated inKing George V'sSilver JubileeFleet Review atSpithead on 16 July 1935.[9] Following theItalian invasion of Abyssinia,Kempenfelt was sent in August to theRed Sea with the other ships of the 2nd Flotilla to monitor Italian warship movements until April 1936. She was given a brief refit at Devonport that lasted until June upon her return to the UK. During the first stages of theSpanish Civil War in late 1936, the ship evacuated British nationals from several different Spanish ports.[10]
In December,Kempenfelt began a more thorough refit at Devonport that lasted until 10 April 1937 and returned to Spanish waters afterwards to intercept shipping carrying contraband goods to Spain and to protect British-flagged ships.[10] On 6 March, the ship and the destroyerBoreas, rescued survivors from theNationalistheavy cruiserBaleares after she was sunk byRepublican destroyers during theBattle of Cape Palos.[11] She was refitted atChatham in May–June 1938 and made a number of port visits in Scandinavia the following month.Kempenfelt was transferred to the Portsmouth Local Flotilla and remained there until the war began in September 1939.[10]
The ship was transferred to the18th Destroyer Flotilla, based at the Isle of Portland, where she escorted shipping and conducted anti-submarine patrols.[10]Kempenfelt was purchased before the war began by the Canadian government, but it agreed to allow the British to retain her until the Royal Navy could compensate for her loss by requisitioning enough auxiliary anti-submarine vessels. By the time that the British were ready to turn her over to the RCN, the ship was under repair after a collision and the hand over was delayed until 19 October. She was renamedAssiniboine and arrived atHalifax,Nova Scotia on 17 November. The ship was not fitted with the steam heating necessary to operate in a Canadian winter and she was transferred to the Caribbean in exchange for the destroyerHMCS Saguenay.Assiniboine arrived atKingston, Jamaica, on 8 December.[12]
Assigned to theNorth America and West Indies Station, the highlight of the ship's service in the Caribbean was the capture of the Germanblockade runnerMV Hannover in theMona Passage between the islands ofHispaniola andPuerto Rico on the night of 8/9 March 1940. Initially intercepted by the light cruiserDunedin, the crew ofHannover disabled their steering gear and set the ship on fire.Assiniboine took the burning ship under tow to prevent her from entering the waters of the neutralDominican Republic while the cruiser sprayed water on the fire. The two ships swapped roles in the morning and the destroyer put some of her crew aboardHannover to helpDunedin'sboarding party fight the fire while the cruiser towed the freighter to Kingston.Assiniboine arrived in Halifax on 31 March for a refit.[13]
After the completion of her refit, the ship escorted local convoys in and around Halifax until 15 January 1941 when she was transferred toGreenock and assigned to the 10thEscort Group of theMid-Ocean Escort Force that was based there.Assiniboine rescued survivors fromSS Anchises on 28 February and was damaged in a collision withMV Lairdswood on 5 April. Her repairs were not completed until 22 May and she was transferred toSt. John's, Newfoundland in June to reinforce escort forces in the Western Atlantic.[10] In early August,Assiniboine, hersisterHMCS Restigouche and the ex-American destroyerHMS Ripley, escorted thebattleshipHMS Prince of Wales toPlacentia Bay where Prime MinisterWinston Churchill met PresidentFranklin Roosevelt for the first time.[14]

Whilst escortingConvoy SC 94 in early August 1942 as part of Escort Group C1,Assiniboine's Type 286 radar spottedU-210 in a heavy fog on 6 August. The destroyer closed on the contact and briefly spotted the submarine twice before losing her in the fog. The submarine reappeared crossing the destroyer's bow at a range of 50 yards (46 m), and both ships opened fire. The range was too close forAssiniboine's 4.7-inch guns to engage, but her .50-calibre machine guns shot up the submarine's deck andconning tower. This kept the Germans from manning their 88-millimetre (3.5 in)deck gun, but the 20-millimetre (0.79 in) flak gun was already manned and firing. The gun punched holes through the destroyer's plating that set some petrol tanks on the deck afire and disabled 'A' gun. It also claimed the only Canadian casualty during the engagement: Ordinary Seaman Kenneth "Wiley" Watson from Revelstoke, British Columbia. The destroyer was unable to ramU-210 until the rear 4.7-inch gun hit the conning tower, killing the entire bridge crew and the .50-caliber machine guns were able to silence the flak gun. This caused Lieutenant Sorber, the senior surviving officer, to order the submarine to dive, but this meant that she had to hold a straight course while doing so.Assiniboine was able to take advantage of this and rammedU-210 abaft the conning tower whilst she was diving. This caused the electric motors to fail, damaged her propellers and led to water entering the submarine, as a result of which Sorber ordered theballast tanks to be blown and the submarine abandoned. The destroyer rammed her again whenU-210 resurfaced, dropped a pattern of depth charges set to detonate at shallow depth and hit her one more time with a 4.7-inch shell before the submarine finally sank.[15] A number of survivors were rescued byAssiniboine and the BritishcorvetteDianthus, before the former ship departed for home for repairs as she was taking on water below thewaterline.[15] She required nearly two months of repairs at Halifax and was assigned to Escort Group C3 when they were completed on 20 December.[10][16] Whilst en route to Londonderry,Assiniboine dropped a shallow pattern of depth charges on a submarine contact and badly damaged her stern on 2 March 1943. The ship was repaired at Liverpool between 7 March and 13 July and then assigned to Escort Group C1. She continued her escort work until April 1944 when she began a refit atShelburne, Nova Scotia. Upon its completion in July,Assiniboine was assigned to theWestern Approaches Command.[10] The following month, the 12th Support Group, includingAssiniboine, engaged three Germanminesweepers on 12 August, without sinking any.[17] She remained in British waters for the rest of the war; the ship was damaged in a collision withSS Empire Bond on 14 February 1945 and was under repair until early March.[10]
Assiniboine returned to Canada in June and was briefly used as a troop transport before aboiler room fire on 4 July effectively ended her career. She was paid off on 8 August and placed on the disposal list. Whilst on tow to the breakers inBaltimore, she ran aground nearEast Point, Prince Edward Island. Attempts to get her off failed, and she was left to rust until eventually being broken up in place in 1952.[10]
| Convoy | Escort Group | Dates | Notes |
|---|---|---|---|
| SC 62 | 30 Dec 1941-8 Jan 42[18] | Newfoundland toIceland | |
| SC 69 | 13-23 Feb 1942[18] | Newfoundland toNorthern Ireland | |
| ON 74 | 10–20 March 1942[19] | Northern Ireland to Newfoundland | |
| SC 77 | 3–12 April 1942[18] | Newfoundland to Northern Ireland | |
| ON 88 | 22 April-3 May 1942[19] | Northern Ireland to Newfoundland | |
| HX 189 | MOEF group C1 | 14–20 May 1942[20] | Newfoundland to Northern Ireland |
| ON 100 | MOEF group C1 | 3–13 June 1942[19] | Northern Ireland to Newfoundland |
| HX 195 | MOEF group C1 | 24 June-1 July 1942[20] | Newfoundland to Northern Ireland |
| ON 112 | MOEF group C1 | 14–25 July 1942[19] | Northern Ireland to Newfoundland |
| Convoy SC 94 | MOEF group C1 | 2-6 Aug 1942[18] | Newfoundland to Northern Ireland |
| HX 221 | MOEF group C3 | 5-13 Jan 1943[20] | Newfoundland to Northern Ireland |
| ON 163 | MOEF group C3 | 25 Jan-8 Feb 1943[19] | Northern Ireland to Newfoundland |
| ON 195 | 1-8 Aug 1943[19] | Northern Ireland to Newfoundland | |
| HX 252 | 20-27 Aug 1943[20] | Newfoundland to Northern Ireland | |
| ON 201 | 10-18 Sept 1943[19] | Northern Ireland to Newfoundland | |
| HX 258 | 28 Sept-5 Oct 1943[20] | Newfoundland to Northern Ireland | |
| ON 207 | 19-28 Oct 1943[19] | Northern Ireland to Newfoundland | |
| HX 264 | 6-16 Nov 1943[20] | Newfoundland to Northern Ireland | |
| ON 213 | 28 Nov-7 Dec 1943[19] | Northern Ireland to Newfoundland | |
| HX 270 | 15-25 Dec 1943[20] | Newfoundland to Northern Ireland | |
| ON 219 | 9-20 Jan 1944[19] | Northern Ireland to Newfoundland | |
| HX 276 | 28 Jan-6 Feb 1944[20] | Newfoundland to Northern Ireland | |
| ON 224 | 15-26 Feb 1944[19] | Northern Ireland to Newfoundland | |
| SC 154 | 2–15 March 1944[18] | Newfoundland to Northern Ireland | |
| ONS 32 | 29 March-13 April 1944[19] | Northern Ireland to Newfoundland |