home

fighting ships of the world

ROYAL NAVY (UNITED KINGDOM)

TORPEDO SHIPS

"C" and "D" destroyers (CRESCENT)

Ottawa 1940

Assiniboine 1941

St. Laurent 1942

   

Displacement standard, t	1375 - 1400
Displacement full, t	1865 - 1942 (later 2040 - 2100)
Length, m	96.9 pp 100.3 oa
Breadth, m	10.1
Draught, m	3.78 (later 3.96 - 4.06)
No of shafts	2
Machinery	Parsons geared steam turbines, 3 Admiralty 3-drum boilers Kempenfelt: Parsons geared steam turbines, 3 Yarrow boilers
Power, h. p.	36000
Max speed, kn	36
Fuel, t	oil 461 - 473
Endurance, nm(kts)	5500(15)
Armament	"C": 4 x 1 - 120/45 QF Mk IX, 1 x 1 - 76/45 QF Mk I HA, 2 x 1 - 40 pompom, 2 x 4 - 533 TT, 3 DCR (6 DC), sweeps Kempenfelt: 4 x 1 - 120/45 QF Mk IX, 1 x 1 - 76/45 QF Mk I HA, 2 x 1 - 40 pompom, 2 x 4 - 533 TT Duncan, Daring, Defender, Diamond, Diana: 4 x 1 - 120/45 QF Mk IX, 1 x 1 - 76/45 QF Mk I HA, 2 x 1 - 40/39 pompom, 2 x 4 - 533 TT, 2 DCT, 1 DCR (20 DC) Dainty, Decoy, Delight, Duchess: 4 x 1 - 120/45 QF Mk IX, 1 x 1 - 76/45 QF Mk I HA, 2 x 4 - 12.7/62, 2 x 4 - 533 TT, 2 DCT, 1 DCR (20 DC)
Sensors	"C": type 119 sonar "D": type 121 sonar
Complement	145 (Kempenfelt, Duncan 175)

Ship project history: These destroyers were built under 1929 ("C" class) and 1930 ("D" class) programs. Development of "A" class, for the account some the bigger dimensions are fuel stowage increased by 20%, new fire control system established and the antiaircraft armaments are strengthened. In order to avoid loss of speed because of the increased displacement machinery power was increased to 36 000hp.

Occurrence of new fire control system led to a enlarging of the superstructure, differing original splitting (chart room, forming director basis, has was on some distance from a bridge.

The antiaircraft 76mm gun as originally appeared should change 40mm pompoms, but in an ultimate variant they remained by the ships, however they have removed from a habitual position between funnels (where now 76mm gun was placed) on a forecastle deck.

In remaining "C" class differed few from the predecessors. By analogy to "A" class they received minesweeping equipment to the detriment of anti-submarine abilities, but their a little bigger dimensions allowed to have sonar.

Leader Kempenfelt has continued originated in 1928 on "B" class tendency to standardization of the leader and destroyers and had a little bit increased aft superstructure with additional premises for a headquarters of the flotilla commander. The anti-submarine and minesweeping equipment were not established for the purpose of loads decrease.

Only 5 of planed 9 ships of "C" class have constructed, in connection with the economic crisis which has burst in 1929 building of four had cancelled.

The ships of the 1930 program ("D" class) were  built on the same design as "C", difference consisted in strengthening of anti-submarine arms at the expense of removing of the minesweeping equipment and installation on part of the ships of 12.7mm quadruple machine guns instead of 40mm pompoms. Pompoms on "C" class are on a forecastle deck, on "D" class their place had chosen to the increased bridge wings leaning against massive steel pipes. The superstructure without exotic "splitting" became last feature.

Modernizations: 1936 - 1938, all: - 1 x 1 - 76/45

late 1939 - early 1940, Assiniboine, Restigouche, Fraser, Ottawa, St. Laurent: - 2 DCR; + 2 DCT (50 DC for all)

mid-1940 - early 1941, Assiniboine, Restigouche, Ottawa, St. Laurent, Dainty, Decoy, Defender, Diamond, Duncan and, probably, Delight and Margaree: - 1 x 4 - 533 TT; + 1 x 1 - 76/45 QF Mk I HA

mid-1940 - early 1941, Assiniboine, Restigouche, Ottawa, St. Laurent: - 2 x 1 - 40 pompom; + 2 x 4 - 12.7/62

1941, Decoy, Duncan and, probably, Defender: - 1 x 1 - 120/45; + 2 x 1 - 20/70 Oerlikon, DC stowage increased up to 50

1942 - 1943, Duncan, Decoy: - 1 x 1 - 120/45, 2 x 4 - 12.7/62; + 4 x 1 - 20/70 Oerlikon, 1 x 24 - 178 Hedgehog DCT

1942 - 1943, Restigouche, St. Laurent: - 2 x 1 - 120/45, 1 x 1 - 76/45, 2 x 4 - 12.7/62; + 2 x 1 - 57/40 Hotchkiss, 2 x 2 - 20/70 Oerlikon, 2 x 1 - 20/70 Oerlikon, 1 x 24 - 178 Hedgehog DCT, 2 DCT, DC stowage increased up to 50

1943, Assiniboine: - 1 x 1 - 120/45, 1 x 1 - 76/45, 2 x 4 - 12.7/62; + 2 x 2 - 20/70 Oerlikon, 2 x 1 - 20/70 Oerlikon, 2 x 12 - 178 Split Hedgehog Mk II DCT, 2 DCT, DC stowage increased up to 50

1944, all: + 4 DCT, 1 DCR (125 DC)

1944, Duncan, Kootenay: - 1 x 1 - 76/45, 1 x 24 - 178 Hedgehog DCT; + 1 x 1 - 120/45 QF Mk IX, 2 x 12 - 178 Split Hedgehog Mk II DCT

Naval service: Fraser was lost in a mouth of Gironde at collision with cruiser Calcutta 28/6/1940. Ottawa was sunk by German submarine U91 at coast of Canada 14/9/1942. Dainty 24/2/1941 was sunk by German Ju 88 bombers in harbour of Tobruk. Daring 18/2/1940 was sunk by German submarine U23 at coast of Northern Scotland. Defender 11/7/1941 was damaged by German aircraft at Tobruk and sunk at tow in Sidi-Barani area. Delight 29/7/1940 was badly damaged by German Ju 87 bombers at Portland, she was towed off in a port where has sunk at night 29-30/7/1940. Diamond 27/4/1941 was sunk by German Ju 88 bombers at Malea point (Greece). Margaree was lost at collision with s/s Port Fairy in Northern Atlantic 22/10/1940. Duchess 12/12/1939 sunk as a result of collision with battleship Barham at coast of Scotland. Duncan 17/1/1940 was damaged as a result of collision with a merchant vessel and repaired about one year. Assiniboine wrecked at Prince William Island 10/11/1945.

       Kempenfelt 1933

 

Custom Search

© Ivan Gogin, 2008-10