Lightfoot Class Flotilla Leader (1915): Difference between revisions

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==Fire Control==
==Fire Control==
[[File:HandbookFCMClass1915_Plate14.jpg|thumb|480px|'''Range and Order Instruments'''<ref>Admiralty.  ''Handbook of Fire Control in Torpedo Boat Destroyers of "M" Class and Later and Flotilla Leaders, 1915'', Plate XIV.</ref>]]
By the end of 1915, at least, the ships had or were to be provided a [[Barr and Stroud Mark I Fire Control Instruments#Destroyer Range and Order Instruments|range and order data system]] like that being given to the [["M" Class Destroyer (1914)|"M" class destroyers]] and to the [[Faulknor Class Flotilla Leader (1914)|''Faulknor'' class]] leaders.<ref>Admiralty.  ''Handbook of Fire Control in Torpedo Boat Destroyers of "M" Class and Later, and Flotilla Leaders, 1915'', p. 3, Plate XIV.</ref>
The scheme placed the combined transmitter on the forebridge, and a combined receiver near the sightsetter position of each gun.  Ranges from 0 to 9900 yards in increments of 100 yards, and orders were "Independent", "Control" and "Fire" with illuminated indicators and a red indicator on the receivers to signal loss of power from the battery pack located below decks.


===Rangefinders===
===Rangefinders===
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====Control Groups====
====Control Groups====
===Directors===
====Main Battery====
====Secondary Battery====


===Torpedo Control===
===Torpedo Control===
===Transmitting Stations===
===Dreyer Table===
These ships had no fire control tables.<ref>absent from list in ''Handbook of Capt. F.C. Dreyer's Fire Control Tables'', p. 3.</ref>


===Fire Control Instruments===
===Fire Control Instruments===

Revision as of 17:59, 17 April 2012

The seven flotilla leaders of the Lightfoot Class (sometimes referred to as "Marksman class destroyers") were completed in 1915-16.

Machinery

Generators

In 1916, it was stated that flotilla leaders have two 26.25 kw dynamos arranged in parallel with an additional 9 kw oil-fired set for emergency use.[1] It is fairly likely that this applied to this earlier class.

Armament

Guns

Four 4-in QF Mark IV guns on P IX mountings.[2]

Torpedoes

Two double revolving 21-in torpedo mounts.[3]

Fire Control

Range and Order Instruments[4]

By the end of 1915, at least, the ships had or were to be provided a range and order data system like that being given to the "M" class destroyers and to the Faulknor class leaders.[5]

The scheme placed the combined transmitter on the forebridge, and a combined receiver near the sightsetter position of each gun. Ranges from 0 to 9900 yards in increments of 100 yards, and orders were "Independent", "Control" and "Fire" with illuminated indicators and a red indicator on the receivers to signal loss of power from the battery pack located below decks.

Rangefinders

Evershed Bearing Indicators

Gunnery Control

Control Positions

Control Groups

Torpedo Control

Fire Control Instruments

See Also

Footnotes

  1. ↑ Annual Report of the Torpedo School, 1916, p. 120.
  2. ↑ Technical History and Index, Vol 4, Part 34, p. 11.
  3. ↑ Technical History and Index, Vol 4, Part 34, p. 11.
  4. ↑ Admiralty.  Handbook of Fire Control in Torpedo Boat Destroyers of "M" Class and Later and Flotilla Leaders, 1915, Plate XIV.
  5. ↑ Admiralty. Handbook of Fire Control in Torpedo Boat Destroyers of "M" Class and Later, and Flotilla Leaders, 1915, p. 3, Plate XIV.

Bibliography

Template:Lightfoot Class (1915)

Template:CatClassUKFlotillaLeader

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