V and W Class Destroyer - Admiralty V Class Leaders

Admiralty V Class Leaders

General characteristics (Admiralty V leader)
Displacement:	1,316–1,339 long tons (1,337–1,360 t)
Length:	300 ft (91.4 m) o/a, 312 ft (95.1 m) p/p
Beam:	26 ft 9 in (8.15 m)
Draught:	9 ft (2.7 m) standard, 11 ft 3 in (3.43 m) deep
Propulsion:	3 Yarrow-type Water-tube boilers (White-Forster type in Valentine), Brown-Curtis steam turbines (Parsons in Valentine, Valhalla), 2 shafts, 27,500 shp (20,507 kW)
Speed:	34 kn (63.0 km/h; 39.1 mph)
Range:	320-370 tons oil, 3,500 nmi (6,482 km; 4,028 mi) at 15 kn (28 km/h; 17 mph), 900 nmi (1,667 km; 1,036 mi) at 32 kn (59 km/h; 37 mph)
Complement:	115
Armament:	4 x QF 4 in Mk.V (102mm L/45) guns, mount P Mk.I 2 x QF 2 pdr Mk.II "pom-pom" (40 mm L/39) anti-aircraft guns 4 (2x2) tubes for 21-inch (533 mm) torpedoes

The Admiralty V class leaders were the initial five V class ships ordered in April 1916 and were designed and built as flotilla leaders. These ships were necessary as the 36 knot speed of the new S class meant that existing flotilla leaders would no longer be able to keep pace with their charges. To speed construction time, these new vessels were based on the three boiler, two funnel machinery of the R class and as they were inevitably larger, a slight decrease in speed was accepted. The fore funnel was tall and narrow and the after one was shorter and wider.

They differed from the later Admiralty and the Thornycroft V classes in that they had a larger bridge structure, taller foremast, mainmast mounted further aft to accommodate an enlarged spread of wireless aerials, extra boats abreast the after funnel and the searchlight platform between the torpedo tubes was enlarged to accommodate an extra compass. Vampire trialled triple-tube mountings for her torpedoes and as a result had a total of six tubes.

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