HMS Jamaica (Reproduced with permission from Jane’s Information Group)
‘O’ class destroyer Onslow
Leader, 17th Destroyer Flotilla,[176] and sister vessels
Obedient, Obdurate, Orwell
| Built: | Clydebank, 1941 |
| Obedient, Obdurate, Orwell, 1942 | |
| Dimensions: | 345 ft 0 in (105 m) × 35 ft 0 in (10.6 m) × 15 ft 8 in (4.67 m) max |
| Displacement: | 1540 tons (1564 tonnes) |
| Main Armament: | 4 × 4.7 in (119 mm) |
| Obedient, Obdurate, Orwell fitted for rapid conversion to minelayers – ‘Y’ gun and both sets of torpedo tubes could be removed and stored ashore, to be replaced by 60 mines in two racks[177] | |
| Anti-aircraft Armament: | 4 × 2 pdr |
| 8 × 20 mm | |
| Anti-submarine Armament: | 4 mortars[178] |
| Torpedo Tubes: | 8 × 21 in (533 mm) in quadruple mounts |
| Machinery: | Parsons geared turbines to twin-screws |
| 2 Admiralty 3-drum boilers | |
| 40,000 SHP, giving 34 knots |
Acasta class destroyer Achates[179]
| Built: | Launched Clydebank 4 October 1929 |
| Dimensions: | 323 ft 0 in (98.4 m) × 32 ft 6 in (9.9 m) × 12 ft 0 in (3.65 m) |
| Displacement: | 1330 tons (1351 tonnes) |
| Main Armament: | Initially 4 × 4.7 in (119 mm) – see anti-submarine equipment below |
| Anti-aircraft Armament: | Initially 2 × 2 pdr pompoms, 5 machine guns |
| Later replaced by 20 mm a/a guns, and a 12 pdr (see torpedo tubes below) | |
| Anti-submarine Armament: | By 1941 ‘A’ turret replaced by forward throwing Hedgehog a/s mortar, ‘Y’ turret replaced by additional depth charges |
| Torpedo Tubes: | Initially 8 × 21 in (533 mm), first destroyers to be fitted with quadruple mounts. Aft bank subsequently replaced by 12 pdr a/a gun |
| Machinery: | Brown-Curtis HP turbines & Parsons LP twinscrew |
| 34,000 SHP, giving 35 knots | |
| Complement: | 138 |
Flower class corvettes Rhododendron & Hyderabad[180]
| Built: | Harland & Wolff, Belfast, 1940 & Alexander Hall, Aberdeen, 1942 |
| Dimensions: | 205 ft 0 in (62.5 m) × 33 ft 0 in (10 m) × 14 ft 6 in (4.42 m) |
| Displacement: | 925 tons (940 tonnes) |
| Guns: | 1 × 4 in (101 mm) |
| Anti-aircraft Armament: | 1 pompom 20 mm machine-guns |
| Anti-submarine Armament: | 1 forward-firing Hedgehog multi-barrelled mortar |
| Machinery: | Triple expansion |
| 2 SE boilers | |
| IHP 2750, giving 16 knots | |
| Complement: | 85 |
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177
4 Lenton, H.T. (1998)