Difference between revisions of "Lion Class Battlecruiser (1910)"

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==Fire Control Systems==
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===Rangefinders===
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===Directors===
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====Main Battery====
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The ships were fitted with a tripod-type director in a light aloft tower on the foremast<ref>''The Director Firing Handbook, 1917''.  p. 142.</ref> along with a directing gun.  The battery was divisible into fore (A & B) and aft (Q & Y) groups, and a [[C.O.S.]] in the [[T.S.]] allowed the following modes of control<ref>''The Director Firing Handbook, 1917''.  p. 88.</ref>:
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# all turrets on aloft director
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# all turrets on directing gun
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# forward group on aloft, aft group on directing gun
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By 1917, ''Lion'' and ''Princess Royal'' were awaiting fitting of a second tripod-type director aft, at which time they would have been fitted with a 5-way C.O.S., possibly in the manner<ref>''The Director Firing Handbook, 1917''.  p. 88.</ref>:
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# all turrets on forward aloft director
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# all turrets on aft director
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# all turrets on directing gun
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# forward group on forward director, aft group on aft director
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# forward group on forward director, aft group on directing gun
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====Secondary Battery====
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The 4-in broadside guns are not listed as ever having had directors installed<ref>''The Director Firing Handbook, 1917''.  pp. 143.</ref>.
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===Torpedo Control===
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===Transmitting Stations===
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===Dreyer Table===
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At the [[Battle of Jutland]], ''Lion'' and ''Princess Royal'' carried Mark III Dreyer tables<ref>Brooks, John. ''Dreadnought Gunnery and the Battle of Jutland'', p. 8.</ref>, while ''Queen Mary'' was using a Mark II Dreyer table when she was destroyed<ref>Sumida, Jon.  ''In Defence of Naval Supremacy'', p. 252.</ref><ref>Brooks, John. ''Dreadnought Gunnery and the Battle of Jutland'', p. 166.</ref>.
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By 1917, ''Lion'' and ''Princess Royal'' had been upgraded to a Mark IV* Dreyer table, but had no Turret Control Tables<ref>''Handbook of Capt. F.C. Dreyer's Fire Control Tables'', p. 3.</ref>. 
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===Miscellaneous===
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==See Also==
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==Footnotes==
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<small>
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<references/>
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</small>
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==Bibliography==
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<small>
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{{Template:BibUKDirectorFiringHandbook1917}}
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{{Template:BibUKDreyerTableHandbook1918}}
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{{Template:BibSumidaIDNS}}
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{{Template:BibBrooksDreadnoughtGunnery}}
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</small>
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{{Template:Lion Class (1910)}}
 
{{Template:Lion Class (1910)}}
  
 
[[Category:Ship Class|Lion Class (1910), HMS]]
 
[[Category:Ship Class|Lion Class (1910), HMS]]

Revision as of 13:19, 14 August 2009

Fire Control Systems

Rangefinders

Directors

Main Battery

The ships were fitted with a tripod-type director in a light aloft tower on the foremast[1] along with a directing gun. The battery was divisible into fore (A & B) and aft (Q & Y) groups, and a C.O.S. in the T.S. allowed the following modes of control[2]:

  1. all turrets on aloft director
  2. all turrets on directing gun
  3. forward group on aloft, aft group on directing gun

By 1917, Lion and Princess Royal were awaiting fitting of a second tripod-type director aft, at which time they would have been fitted with a 5-way C.O.S., possibly in the manner[3]:

  1. all turrets on forward aloft director
  2. all turrets on aft director
  3. all turrets on directing gun
  4. forward group on forward director, aft group on aft director
  5. forward group on forward director, aft group on directing gun

Secondary Battery

The 4-in broadside guns are not listed as ever having had directors installed[4].

Torpedo Control

Transmitting Stations

Dreyer Table

At the Battle of Jutland, Lion and Princess Royal carried Mark III Dreyer tables[5], while Queen Mary was using a Mark II Dreyer table when she was destroyed[6][7].

By 1917, Lion and Princess Royal had been upgraded to a Mark IV* Dreyer table, but had no Turret Control Tables[8].

Miscellaneous

See Also

Footnotes

  1. The Director Firing Handbook, 1917. p. 142.
  2. The Director Firing Handbook, 1917. p. 88.
  3. The Director Firing Handbook, 1917. p. 88.
  4. The Director Firing Handbook, 1917. pp. 143.
  5. Brooks, John. Dreadnought Gunnery and the Battle of Jutland, p. 8.
  6. Sumida, Jon. In Defence of Naval Supremacy, p. 252.
  7. Brooks, John. Dreadnought Gunnery and the Battle of Jutland, p. 166.
  8. Handbook of Capt. F.C. Dreyer's Fire Control Tables, p. 3.

Bibliography

Template:BibUKDirectorFiringHandbook1917 Template:BibUKDreyerTableHandbook1918 Template:BibSumidaIDNS Template:BibBrooksDreadnoughtGunnery

Template:Lion Class (1910)