Difference between revisions of "Drake Class Cruiser (1901)"
(use templates for ARTS references) |
|||
| Line 1: | Line 1: | ||
| − | The four [[Armoured Cruiser|armoured cruisers]] of the '''Drake Class''' were completed in 1902 and 1903. | + | The four [[Armoured Cruiser|armoured cruisers]] of the '''''Drake'' Class''' were completed in 1902 and 1903. |
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
==Searchlights== | ==Searchlights== | ||
| Line 31: | Line 8: | ||
===Main Battery=== | ===Main Battery=== | ||
| − | This section is sourced in ''The Sight Manual, 1916''. | + | This section is sourced in ''The Sight Manual, 1916''.{{TheSightM|pp 57, 105, 108, 110. Plate 20, 21}} |
| − | + | {{UK-KingAlfred}}'s mountings differed from those of {{UK-Drake}} and {UK-Leviathan}} and were similar to [[Cressy Class Cruiser (1899)#Main Battery|those in the ''Cressy'' class]]. It is unknown which pattern {{UK-GoodHope}} fit. The equipment of ''Drake'' and ''Leviathan'' (only) is documented here. | |
The two 9.2-in B.L. guns Mark X were arranged in single Mark V mountings fore and aft, able to elevate 13 degrees and depress 5 degrees. | The two 9.2-in B.L. guns Mark X were arranged in single Mark V mountings fore and aft, able to elevate 13 degrees and depress 5 degrees. | ||
| Line 76: | Line 53: | ||
===Dreyer Table=== | ===Dreyer Table=== | ||
| − | These ships never received Dreyer tables. | + | These ships never received Dreyer tables.{{DreyerH|p. 3}} |
===Fire Control Instruments=== | ===Fire Control Instruments=== | ||
| Line 91: | Line 68: | ||
* Siemens Captain's Cease Fire Bells: 20 with 1 key | * Siemens Captain's Cease Fire Bells: 20 with 1 key | ||
| − | ''Drake'', Good Hope'' and ''Leviathan'' were equipped with [[Vickers|Vickers, Son and Maxim]] instruments for range, deflection and orders and with [[Barr and Stroud]] [[Range Rate|rate]] instruments: | + | ''Drake'', Good Hope'' and ''Leviathan'' were equipped with [[Vickers|Vickers, Son and Maxim]] instruments for range, deflection and orders and with [[Barr and Stroud]] [[Range Rate|rate]] instruments:{{HFCI1909|pp. 56, 60}} |
* Vickers range transmitters: 6 | * Vickers range transmitters: 6 | ||
* Vickers deflection transmitters: 6 | * Vickers deflection transmitters: 6 | ||
| Line 103: | Line 80: | ||
* Siemens Captain's Cease Fire Bells: 20 with 1 key | * Siemens Captain's Cease Fire Bells: 20 with 1 key | ||
| − | These ships lacked ''Target Visible'' and ''Gun Ready'' signals. | + | These ships lacked ''Target Visible'' and ''Gun Ready'' signals.{{HFCI1914|p. 11}} |
==See Also== | ==See Also== | ||
| Line 141: | Line 118: | ||
pend=P.09 (1914){{DittColl|p. 42}} | pend=P.09 (1914){{DittColl|p. 42}} | ||
builder=[[Pembroke Royal Dockyard]]{{Conways1860|p. 69}} | builder=[[Pembroke Royal Dockyard]]{{Conways1860|p. 69}} | ||
| − | order= | + | order=1898-99 Programme{{Conways1860|p. 69}} |
laid=24 Apr, 1899{{Conways1860|p. 69}} | laid=24 Apr, 1899{{Conways1860|p. 69}} | ||
launch=5 Mar, 1901{{Conways1860|p. 69}} | launch=5 Mar, 1901{{Conways1860|p. 69}} | ||
| Line 153: | Line 130: | ||
name=Good Hope | name=Good Hope | ||
pend=P.16 (1914){{DittColl|p. 42}} | pend=P.16 (1914){{DittColl|p. 42}} | ||
| − | builder=[[Fairfield]] | + | builder=[[Fairfield]], Govan{{Conways1860|p. 69}} |
| − | order= | + | order=" |
laid=11 Sep, 1899{{Conways1860|p. 69}} | laid=11 Sep, 1899{{Conways1860|p. 69}} | ||
launch=21 Feb, 1901{{Conways1860|p. 69}} | launch=21 Feb, 1901{{Conways1860|p. 69}} | ||
| Line 167: | Line 144: | ||
pend=P.10 (1914)<br>P.98 (Jan 1918){{DittColl|p. 42}} | pend=P.10 (1914)<br>P.98 (Jan 1918){{DittColl|p. 42}} | ||
builder=[[Vickers|Vickers, Barrow]]{{Conways1860|p. 69}} | builder=[[Vickers|Vickers, Barrow]]{{Conways1860|p. 69}} | ||
| − | order= | + | order=" |
laid=11 Aug, 1899{{Conways1860|p. 69}} | laid=11 Aug, 1899{{Conways1860|p. 69}} | ||
launch=28 Oct, 1901{{Conways1860|p. 69}} | launch=28 Oct, 1901{{Conways1860|p. 69}} | ||
| Line 173: | Line 150: | ||
fate=Sold | fate=Sold | ||
fate2=Scrapped | fate2=Scrapped | ||
| − | fatedate=30 Jan, 1920 | + | fatedate=30 Jan, 1920{{DittColl|p. 42}} |
} | } | ||
| Line 180: | Line 157: | ||
pend=P.28 (1914)<br>P.73 (Sep 1915)<br>P.1A (Jan 1918){{DittColl|p. 42}} | pend=P.28 (1914)<br>P.73 (Sep 1915)<br>P.1A (Jan 1918){{DittColl|p. 42}} | ||
builder=[[John Brown|John Brown, Clydebank]] | builder=[[John Brown|John Brown, Clydebank]] | ||
| − | order= | + | order=" |
laid=30 Nov, 1899{{Conways1860|p. 69}} | laid=30 Nov, 1899{{Conways1860|p. 69}} | ||
launch=3 Jul, 1901{{Conways1860|p. 69}} | launch=3 Jul, 1901{{Conways1860|p. 69}} | ||
| Line 186: | Line 163: | ||
fate=Sold | fate=Sold | ||
fate2=Scrapped | fate2=Scrapped | ||
| − | fatedate=3 Mar, 1920 | + | fatedate=3 Mar, 1920{{DittColl|p. 42}} |
} | } | ||
data --> | data --> | ||
Revision as of 11:03, 20 September 2012
The four armoured cruisers of the Drake Class were completed in 1902 and 1903.
Contents
Searchlights
In 1907, these ships, along with the Powerful, Cressy, Monmouth and Devonshire classes and battleships of the Majestic, Canopus, London, and Duncan classes, were to land their searchlights from their tops and obtain two additional 24-inch models from their dockyards for placement on the shelter or boat deck. These were to be augmented by (or further upgraded to?) a pair of 36-in searchlights when they became available.[1]
Armament
During the war, along with those of other older ships, the eight 6-inch guns casemated on the main deck proved of little use in practical sea states. The three foremost main deck guns on each side were moved to the upper deck and the aftmost gun on each side remaining in situ. Four of the twelve original 12-pdr guns were displaced and surrendered by this reconfiguration.[2][Fact Check]
Main Battery
This section is sourced in The Sight Manual, 1916.[3]
King Alfred's mountings differed from those of Drake and {UK-Leviathan}} and were similar to those in the Cressy class. It is unknown which pattern Good Hope fit. The equipment of Drake and Leviathan (only) is documented here.
The two 9.2-in B.L. guns Mark X were arranged in single Mark V mountings fore and aft, able to elevate 13 degrees and depress 5 degrees.
The sights were gear-worked with a range gearing constant of 49.26, graduated to only 12.5 degrees or 14,000 yards, full charge. There was no MV correction, but a generous supply of range dials was provided: 2700/2675/2643/2625/2600/2575/2550 fps for full charge, 2250/2225/2196/2175/2150/2125/2100 fps for reduced charge, and 3-pdr sub-calibre and 1-in aiming rifle. The 2850 fps dial was noted as having range errors exceeding 25 yards, as it employed the same cam cut for the 2750 fps dial. The 2750 fps dial would be used for calibrating the sight. MV was corrected by adjustable pointer allowing a 100 fps decrease (only).
The deflection was on a gearing constant of 51.11, 1 knot being 2.61 arc minutes, calibrated for 2643 fps at 5000 yards.
Drift was corrected by inclining the sight bracket 1.5 degrees. The sighting lines were 14 inches above the bore and 45 inches to the left and 50 inches to the right. The right sight was a vertical columns sight entirely different in nature than the left, which was similar to that used on the 7.5-in Mark II.
Neither "C" corrector nor temperature corrector are mentioned explicitly and none are visible in drawings.
Secondary Battery
Other Guns
Originally, twelve 12-pdr guns. When 6-in guns were moved about, four of these guns were lost with the remainder on shelter decks and atop casemates.
Dreyer Table
These ships never received Dreyer tables.[4]
Fire Control Instruments
By 1909, the four ships in this class were split into two different types of fire control equipment.
King Alfred differed from the other 3 ships in the class by having Barr and Stroud Mark II instruments for range and rate, B & S Mark I for orders, and Vickers instruments for deflection:[5]
- Range (B. & S. Mark II): 6 transmitters, 33 receivers
- Orders (B. & S. Mark I): 6 transmitters, 20 receivers
- Rate (B. & S. Mark II): 4 transmitters, 8 receivers
- Deflection (Vickers): 6 transmitters, 27 receivers
- Group Switches: 3 (converted by Chatham)
- Siemens Turret fire gongs: 4 with 2 keys
- Vickers Fire Gongs: 16 with 4 keys
- Siemens Captain's Cease Fire Bells: 20 with 1 key
Drake, Good Hope and Leviathan were equipped with Vickers, Son and Maxim instruments for range, deflection and orders and with Barr and Stroud rate instruments:[6]
- Vickers range transmitters: 6
- Vickers deflection transmitters: 6
- Vickers combined range and deflection receivers: 28 (27 in Drake)
- Vickers C.O.S.: 3
- Vickers Check fire switches: 6
- Barr and Stroud rate transmitters: 4
- Barr and Stroud rate receivers: 8
- Siemens Fire Gongs (turrets): 4 with 2 keys
- Vickers Fire Gongs (elsewhere): 16 with 4 keys (Siemens in Good Hope)
- Siemens Captain's Cease Fire Bells: 20 with 1 key
These ships lacked Target Visible and Gun Ready signals.[7]
See Also
Footnotes
- ↑ Annual Report of the Torpedo School, 1907. p. 35. The location for each ship type was placement stipulated in C.N.2 11884/13066, 13.12.1906.
- ↑ Technical History and Index Vol. 4, Part 36, p. 9-10. I do not understand this configuration.
- ↑ The Sight Manual, 1916. pp 57, 105, 108, 110. Plate 20, 21.
- ↑ Handbook of Captain F. C. Dreyer's Fire Control Tables, 1918. p. 3.
- ↑ Handbook for Fire Control Instruments, 1909. pp. 56, 59.
- ↑ Handbook for Fire Control Instruments, 1909. pp. 56, 60.
- ↑ Handbook for Fire Control Instruments, 1914. p. 11.
Bibliography
- Friedman, Norman (2012). British Cruisers of the Victorian Era. Annapolis: Naval Institute Press. ISBN 1591140684 (on Amazon.com and Amazon.co.uk).
- Admiralty, Technical History Section (1920). The Technical History and Index: Alteration in Armaments of H.M. Ships during the War. Vol. 4, Part 34. C.B. 1515 (34) now O.U. 6171/20. At The National Archives, Kew, United Kingdom.
- Admiralty, Gunnery Branch (1910). Handbook for Fire Control Instruments, 1909. Copy No. 173 is Ja 345a at Admiralty Library, Portsmouth, United Kingdom.
- 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.
- Admiralty, Gunnery Branch (1917). The Director Firing Handbook. O.U. 6125 (late C.B. 1259). Copy No. 322 at The National Archives. ADM 186/227.
- Admiralty, Gunnery Branch (1918). Handbook of Captain F. C. Dreyer's Fire Control Tables, 1918. C.B. 1456. Copy No. 10 at Admiralty Library, Portsmouth, United Kingdom.
- Template:BrooksDreadnoughtGunnery
| Drake Class Armoured Cruiser | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Drake | Good Hope | King Alfred | Leviathan | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| <– | Cressy Class | Major Cruisers (UK) | Monmouth Class | –> | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
