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Q Class, British Destroyers


Photograph of Quilliam-class destroyer

Australian War Memorial. Via Wikipedia Commons


Specifications:


Tonnage 1734 tons standard displacement
Dimensions 358'3" by 35'8" by 9'6"
109.2m by 10.9m by 2.9m
Maximum speed       36 knots
Complement 175
Armament 4x1 4.7"/45 guns
2x4 21" torpedo tubes
1x4 40mm/40 AA guns
2x2, 2x1 20mm Oerlikon AA guns
70 depth charges
2 depth charge tracks
4 depth charge throwers
Machinery
2-shaft Parsons geared turbine (40,000 shp)
2 Admiralty 3-drum boilers
Bunkerage 615 tons fuel oil
Sensors
Type 128 sonar
Type 277 radar
Type 291 radar
Range 5500 nautical miles (10,200 km) at 15 knots


The Quilliams were completed in 1942-1943 as the first of the War Emergency Destroyers or "Cubs". In order to speed production, they were based as much as possible on existing designs, having hulls very similar to the "J" class with a number of changes in armament. The twin gun turrets were replaced with single gun turrets and the torpedo armament was increased. One magazine was converted to a fuel bunker to improve endurance. 

The ships were designed to take three easily interchanged sets of armament. Configuration 'A' is that shown above. Configuration 'B' was a maximum antisubmarine warfare configuration, which swapped one 4" gun for four additional depth charge throwers and a loadout of 120 depth charges. Configuration 'C' was a minesweeper version which also sacrificed the fourth 4" gun and reduced the depth charge loadout to 45 depth charges in return for TSDS minesweeping gear.

Their completion was delayed because of air raid damage to the yards. A second group of identical design, the "R" class, had construction suspended because of the fall of France, which prompted the Admiralty to suspend all construction that could not be completed by the end of 1940 until the crisis had passed. Construction resumed after the British victory in the Battle of Britain reduced the threat of German invasion.

A number of units were manned by the Royal Australian Navy, although they operated in the war against Germany until the beginning of 1944 and remained under Royal Navy operational control until the end of the war.

Units in the Pacific:

Quilliam     
Arrived 1944-3 (4 Flotilla)       Flotilla leader
Quadrant     
Arrived 1944-3 (4 Flotilla)       Manned by Royal Australian Navy
Quality
Arrived 1944-3 (4 Flotilla)     
Manned by Royal Australian Navy
Queenborough     
Arrived 1944-3 (4 Flotilla)     
Manned by Royal Australian Navy
Quiberon
Arrived 1944-3 (4 Flotilla)     
Manned by Royal Australian Navy
Quickmatch
Arrived 1944-3 (4 Flotilla)     
Manned by Royal Australian Navy
Rotherham Arrived 1944-3 (11 Flotilla)     
Rapid Arrived 1944-3 (11 Flotilla)     
Racehorse Arrived 1944-3 (11 Flotilla)     
Raider Arrived 1944-3 (11 Flotilla)     
Redoubt
Arrived 1944-3 (11 Flotilla)     
Relentless
Arrived 1944-3 (11 Flotilla)     

Rocket
Arrived 1944-3 (11 Flotilla)

Roebuck
Arrived 1944-3 (11 Flotilla)


References

Friedman (2006)

Whitley (1988)

Worth (2001)



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