Difference between revisions of "Queen Elizabeth Class Battleship (1913)"
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* 'B' turret | * 'B' turret | ||
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====Control Groups==== | ====Control Groups==== | ||
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====Secondary Battery==== | ====Secondary Battery==== | ||
| − | All units except [[H.M.S. Queen Elizabeth (1913)|Queen Elizabeth]] had a pair of pedestal-mounted directors for their secondary batteries. ''Queen Elizabeth'''s 6-in guns were supported by a pair of ''tripod-mounted directors'' <ref>''The Director Firing Handbook, 1917''. p. 143.</ref>. | + | All units except [[H.M.S. Queen Elizabeth (1913)|''Queen Elizabeth'']] had a pair of pedestal-mounted directors for their secondary batteries. ''Queen Elizabeth'''s 6-in guns were supported by a pair of ''tripod-mounted directors'' <ref>''The Director Firing Handbook, 1917''. p. 143.</ref>. |
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| − | The broadside-mounted secondary guns were in port and starboard groups, and either were laid and fired locally or under the control of the director on their side. | + | The secondary directors were situated port and starboard high on her forward superstructure<ref>''The Director Firing Handbook, 1917''. p. 91.</ref>. The broadside-mounted secondary guns were in port and starboard groups, and either were laid and fired locally or under the control of the director on their side. |
===Torpedo Control=== | ===Torpedo Control=== | ||
Revision as of 14:21, 19 August 2009
Rate of Turn
Courtesy of the late Mr. Bill Schleihauf.
Speed @ Rudder Angle-----Advance for 90 deg-----Tact Diameter
14 kts @ 12.5 degrees--------752 yards------------824 yards
14 kts @ 35.0 degrees--------537 yards------------475 yards
Speed after turning through X degrees:
Speed @ Rudder Angle-----45deg-----90deg-----135deg----180deg
14 kts @ 25deg-----------13.6 kts--12.4 kts--11.5 kts--11.3 kts
14 kts @ 35deg-----------11.9 kts---9.0 kts---6.8 kts---5.5 kts
23 kts @ 35deg-----------19.5 kts--15.6 kts--11.4 kts---9.7 kts
Time to turn through X degrees:
Speed @ Rudder Angle-----45deg-----90deg-----135deg----180deg----360deg
14 kts @ 12.5deg---------1m 18s----1m 59s----2m 45s----3m 35s----7m 04s
14 kts @ 35deg-----------0m 53s----1m 27s----2m 08s----2m 57s----6m 41s
23 kts @ 35deg-----------0m 37s----0m 57s----1m 19s----1m 48s----3m 51s
Fire Control
Rangefinders
Evershed Bearing Indicators
All 5 units were likely fitted with this equipment before late 1914[Inference][1].
Details likely resembled those for the King George V class.
Gunnery Control
The control arrangements were almost certainly developed along lines similar to the King George V class, outlined here as follows[Inference].
Control Positions
- Gunnery control tower
- 'B' turret
- 'X' turret
Control Groups
The four 15-in turrets were each a separate group with a local C.O.S. so that it could be connected to
- Transmitting Station
- Local control from officer's position within turret
The 6-in guns were probably divided into 2 broadside groups, port and starboard.
Directors
Main Battery
These ships were fitted with 2 cam-type tripod-mounted directors, one in an armoured tower and one in a light aloft tower[2] as well as a directing gun (in 'X' turret?)[3].
The main battery was divisible into two groups, fore ('A' & 'B') and aft ('X' & 'Y')[4]. A C.O.S. in the TS offered the following options[5]:
- All guns on aloft director
- All guns on armoured director
- All guns on directing gun
- Forward group on aloft director, aft group on armoured director
- Forward group on armoured director, aft group on directing gun
Each gun had a local C.O.S. with 3 positions:
- Gunlayer's firing (local trigger circuits connected)
- Director 1 (director main to local main, director aux to local aux)
- Director 2 (director main to local aux, director aux to local main)
Secondary Battery
All units except Queen Elizabeth had a pair of pedestal-mounted directors for their secondary batteries. Queen Elizabeth's 6-in guns were supported by a pair of tripod-mounted directors [6].
The secondary directors were situated port and starboard high on her forward superstructure[7]. The broadside-mounted secondary guns were in port and starboard groups, and either were laid and fired locally or under the control of the director on their side.
Torpedo Control
Transmitting Stations
Following evolutionary lines of development which were firming up in the King George V class, these ships probably had a TS for the main battery (with a Dreyer Table), and one for the 6-in guns (likely without a Dreyer table, or just a Turret Control Table)[Inference].
Dreyer Table
All ships had Mark IV* tables, although it is possible that Queen Elizabeth was originally given a Mark IV Dreyer table which was later upgraded to the Mark IV* standard[8].
Each ship also had 4[Inference] Dreyer Turret Control Tables[9].
Shipwide Network
Continuing the pattern established in the Colossus class, all 5 units used Vickers F.T.P. Mark III range and deflection instruments to the gun sights and Barr and Stroud (probably Mark II*[Inference]) instruments for other purposes[10].
Footnotes
- ↑ not listed in pertinent section in Handbook for Fire Control Instruments, 1914
- ↑ The Director Firing Handbook, 1917. p. 142
- ↑ The Director Firing Handbook, 1917. p. 88
- ↑ The Director Firing Handbook, 1917. p. 88
- ↑ The Director Firing Handbook, 1917. p. 88
- ↑ The Director Firing Handbook, 1917. p. 143.
- ↑ The Director Firing Handbook, 1917. p. 91.
- ↑ Handbook of Capt. F.C. Dreyer's Fire Control Tables, p. 3.
- ↑ Handbook of Capt. F.C. Dreyer's Fire Control Tables, p. 3.
- ↑ Handbook for Fire Control Instruments, 1914, pp. 72.
Bibliography
Template:BibUKDirectorFiringHandbook1917 Template:BibUKDreyerTableHandbook1918 Admiralty, Gunnery Branch (1914). Handbook for Fire Control Instruments, 1914. G. 01627/14. C.B. 1030. Copy 1235 at The National Archives. ADM 186/191.
