Difference between revisions of ""V" Class Destroyer (1917)"

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==Design==
 
==Design==
The bridge replaced the conventional canvas screens with steel plates to better resist heavy seas.  This required the [[Dumaresq|dumaresq]] and [[Line of Sight Indicator]] to be duplicated to port and starboard pairs.  The chart table jutted out from the bridge, and a director was fitted.  A panel with torpedo control instruments was also sited on the bridge.<ref>March, Edgar J.  ''British Destroyers'', p. 206.</ref>
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The bridge replaced the conventional canvas screens with steel plates to better resist heavy seas.  This required the [[Dumaresq|dumaresq]] and [[Line of Sight Indicator]] to be duplicated to port and starboard pairs.  The chart table jutted out from the bridge, and a director was fitted.  A panel with torpedo control instruments was also sited on the bridge.{{March|Edgar J.  ''British Destroyers'', p. 206}}
  
 
==Performance==
 
==Performance==
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===4-in Guns===
 
===4-in Guns===
* Four 4-in Q.F. Mark V guns with 30 degree elevation and 120 rounds per gun.  Range and deflection receivers were Barr and Stroud, and not F.T.P..<ref>March, Edgar J.  ''British Destroyers'', pp. 205-206.</ref>
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* Four 4-in Q.F. Mark V guns with 30 degree elevation and 120 rounds per gun.  Range and deflection receivers were Barr and Stroud, and not F.T.P..{{March|Edgar J.  ''British Destroyers'', pp. 205-206}}
  
 
===Other Guns===
 
===Other Guns===
* One 3-in H.A. 20 cwt Mark III with 100 rounds.<ref>March, Edgar J.  ''British Destroyers'', pp. 205-206.</ref>
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* One 3-in H.A. 20 cwt Mark III with 100 rounds.{{March|Edgar J.  ''British Destroyers'', pp. 205-206}}
  
 
===Torpedoes===
 
===Torpedoes===
Two twin 21-in tubes on the centre line enjoying 50 degree arcs centered on the beam.<ref>MarchPlate 25/A.</ref>
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Two twin 21-in tubes on the centre line enjoying 50 degree arcs centered on the beam.{{March|Plate 25/A}}
  
 
===Other Weapons===
 
===Other Weapons===
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==Alterations==
 
==Alterations==
A 9-foot rangefinder and two hydraulic releases for depth charges were added to the bridge at some point.<ref>March, Edgar J.  ''British Destroyers'', p. 206.</ref> After the war, the twin torpedo tubes were replaced with triple mounts as in the "W" class vessels.<ref>March, Edgar J.  ''British Destroyers'', p. 207.</ref>
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A 9-foot rangefinder and two hydraulic releases for depth charges were added to the bridge at some point.{{March|Edgar J.  ''British Destroyers'', p. 206}} After the war, the twin torpedo tubes were replaced with triple mounts as in the "W" class vessels.{{March|Edgar J.  ''British Destroyers'', p. 207}}
  
 
By November 1918, those ships operating with the [[Twentieth Destroyer Flotilla (Royal Navy)|Twentieth Destroyer Flotilla]] (''Vanoc'', ''Vanquisher'' and ''Venturous'') were fitted to carry 44 mines, apparently of the "H" and "M" variety.  Those with the [[Eleventh Destroyer Flotilla (Royal Navy)|Eleventh Flotilla]] were also equipped, but with "M" type sinkers: ''Vivacious'' with 40 mines and ''Versatile'', ''Vittoria'', ''Vortigern'' and ''Vancouver'' with 74.  ''Venetia'' and ''Vesper'' serving with the [[Thirteenth Destroyer Flotilla (Royal Navy)||Thirteenth Flotilla]] and ''Velox'' at Dover also could carry 74 "M" sinkers.  The torpedo tubes and guns removed when the mines were shipped could be placed back aboard with enough notice.<ref>Admiralty. ''Annual Report of the Torpedo School Mining Appendix, 1917-1918'', p. 11. Plate 7.</ref>
 
By November 1918, those ships operating with the [[Twentieth Destroyer Flotilla (Royal Navy)|Twentieth Destroyer Flotilla]] (''Vanoc'', ''Vanquisher'' and ''Venturous'') were fitted to carry 44 mines, apparently of the "H" and "M" variety.  Those with the [[Eleventh Destroyer Flotilla (Royal Navy)|Eleventh Flotilla]] were also equipped, but with "M" type sinkers: ''Vivacious'' with 40 mines and ''Versatile'', ''Vittoria'', ''Vortigern'' and ''Vancouver'' with 74.  ''Venetia'' and ''Vesper'' serving with the [[Thirteenth Destroyer Flotilla (Royal Navy)||Thirteenth Flotilla]] and ''Velox'' at Dover also could carry 74 "M" sinkers.  The torpedo tubes and guns removed when the mines were shipped could be placed back aboard with enough notice.<ref>Admiralty. ''Annual Report of the Torpedo School Mining Appendix, 1917-1918'', p. 11. Plate 7.</ref>

Revision as of 18:58, 18 September 2012

A total of 25 destroyers of the "V" Class were completed in 1917-1918.

Design

The bridge replaced the conventional canvas screens with steel plates to better resist heavy seas. This required the dumaresq and Line of Sight Indicator to be duplicated to port and starboard pairs. The chart table jutted out from the bridge, and a director was fitted. A panel with torpedo control instruments was also sited on the bridge.[1]

Performance

The ships' capacity for 365 tons of fuel, delivered the following endurance.[2]

Knots Tons / hour Endurance
(hours)
radius (nm)
14 1.7 206 2,884
16 2.0 175 2,800
18 2.5 140 2,520
20 3.6 97 1,940
22 4.5 80 1,760
24 5.5 63 1,512
26 6.8 50 1,300
28 8.5 40 1,120
30 10.5 33 990

Machinery

Generators

In 1916, it was stated that "new destroyers" have two 26.25 kw dynamos arranged in parallel.[3] It is likely that this applied to this class.

Armament

4-in Guns

  • Four 4-in Q.F. Mark V guns with 30 degree elevation and 120 rounds per gun. Range and deflection receivers were Barr and Stroud, and not F.T.P..[4]

Other Guns

  • One 3-in H.A. 20 cwt Mark III with 100 rounds.[5]

Torpedoes

Two twin 21-in tubes on the centre line enjoying 50 degree arcs centered on the beam.[6]

Other Weapons

Fire Control

Instruments

Rangefinders

Directors

Torpedo Control

Alterations

A 9-foot rangefinder and two hydraulic releases for depth charges were added to the bridge at some point.[7] After the war, the twin torpedo tubes were replaced with triple mounts as in the "W" class vessels.[8]

By November 1918, those ships operating with the Twentieth Destroyer Flotilla (Vanoc, Vanquisher and Venturous) were fitted to carry 44 mines, apparently of the "H" and "M" variety. Those with the Eleventh Flotilla were also equipped, but with "M" type sinkers: Vivacious with 40 mines and Versatile, Vittoria, Vortigern and Vancouver with 74. Venetia and Vesper serving with the |Thirteenth Flotilla and Velox at Dover also could carry 74 "M" sinkers. The torpedo tubes and guns removed when the mines were shipped could be placed back aboard with enough notice.[9]

See Also

Footnotes

  1. March. British Destroyers. Edgar J. British Destroyers, p. 206.
  2. Battlecruiser Force Signal Orders (1 August, 1918), ADM 137/2135
  3. Annual Report of the Torpedo School', 1916', p. 120.
  4. March. British Destroyers. Edgar J. British Destroyers, pp. 205-206.
  5. March. British Destroyers. Edgar J. British Destroyers, pp. 205-206.
  6. March. British Destroyers. Plate 25/A.
  7. March. British Destroyers. Edgar J. British Destroyers, p. 206.
  8. March. British Destroyers. Edgar J. British Destroyers, p. 207.
  9. Admiralty. Annual Report of the Torpedo School Mining Appendix, 1917-1918, p. 11. Plate 7.

Bibliography


"V" Class Destroyer
Admiralty Design
Vancouver Vanessa Vanity Vanquisher Vanoc
Vega Velox Vehement Venturous Vendetta
Venetia Verdun Versatile Verulam Vesper
  Vidette Violent Vimiera Vittoria  
  Vivacious Vivien Vortigern Vectis  
Thornycroft Specials
  Viceroy Viscount  
<– "R" Class Destroyers (UK) "W" Class –>