HMS Isis (D87)
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 An aerial view of HMS Isis underway during the Second World War | |
| History | |
|---|---|
 United Kingdom | |
| Name | Isis |
| Namesake | Isis |
| Builder | Yarrow Shipbuilders |
| Laid down | 6 February 1936 |
| Launched | 12 November 1936 |
| Commissioned | 2 June 1937 |
| Identification | Pennant number: D87, I87 |
| Fate | Sunk by a mine off Normandy, 20 July 1944 |
| General characteristics (as built) | |
| Class & type | I-class destroyer |
| Displacement | |
| Length | 323 ft (98.5 m) |
| Beam | 33 ft (10.1 m) |
| Draught | 12 ft 6 in (3.8 m) |
| Installed power |
|
| Propulsion | 2 shafts, 2 geared steam turbines |
| Speed | 35.5 knots (65.7 km/h; 40.9 mph) |
| Range | 5,500 nmi (10,200 km; 6,300 mi) at 15 knots (28 km/h; 17 mph) |
| Complement | 145 |
| Sensors & processing systems | ASDIC |
| Armament |
|
| Service record | |
| Operations | Battle of Greece (1941) |
| Victories | Sank German submarine U-562 (1943) |
HMS Isis was one of nine I-class destroyers built for the Royal Navy during the 1930s.
The I-class ships were improved versions of the preceding H-class. They displaced 1,370 long tons (1,390 t) at standard load and 1,888 long tons (1,918 t) at deep load. The ships had an overall length of 323 feet (98.5 m), a beam of 33 feet (10.1 m) and a draught of 12 feet 6 inches (3.8 m). They were powered by two Parsons geared steam turbines, each driving one propeller shaft, using steam provided by three Admiralty three-drum boilers. The turbines developed a total of 34,000 shaft horsepower (25,000 kW) and were intended to give a maximum speed of 35.5 knots (65.7 km/h; 40.9 mph).[1] Isis reached a speed of 35.3 knots (65.4 km/h; 40.6 mph) from 33,849 shp (25,241 kW) during her sea trials.[2] The ships carried enough fuel oil to give them a range of 5,500 nautical miles (10,200 km; 6,300 mi) at 15 knots (28 km/h; 17 mph). Their crew numbered 145 officers and ratings.[1]
The ships mounted four 4.7-inch (120 mm) Mark IX guns in single mounts, designated 'A', 'B', 'X' and 'Y' from bow to stern. For anti-aircraft (AA) defence, they had two quadruple mounts for the 0.5 inch Vickers Mark III machine gun. The I class was fitted with two above-water quintuple torpedo tube mounts amidships for 21-inch (533 mm) torpedoes.[3] One depth charge rack and two throwers were fitted; 16 depth charges were originally carried,[1] but this increased to 35 shortly after the war began.[4] The I-class ships were fitted with the ASDIC sound detection system to locate submarines underwater.[5]
