Difference between revisions 136785057 and 139888715 on dewiki

{{Importartikel}}
{{DISPLAYTITLE:''Invincible''-class battlecruiser}}
{|{{Infobox ship begin}}
{{Infobox ship image
|Ship image=[[File:HMS Invincible (1907) British Battleship.jpg|300px|alt=A large grey warship with two tripod masts and three funnels]]
|Ship caption=An early photograph of ''Invincible'', before her torpedo nets were removed.
}}
{{Infobox ship class overview
(contracted; show full)3.5°, this provided a maximum range of {{convert|16450|m|yd|abbr=on}} with [[Armor-piercing shot and shell|armour-piercing (AP)]] 2 [[List of British ordnance terms#C.R.H.|crh]] shells. At 16° elevation, the range was extended to {{convert|20435|yd|m|abbr=on}} using the more aerodynamic, but slightly heavier 4 crh AP shells. The rate of fire of these guns was 1–2 rounds per minute.<ref>{{cite web|url=http://www.navweaps.com/Weapons/WNBR_12-45_mk10.htm|title=Britain 12"/45 (30.5 cm) Mark X |date=
30 January 2009|accessdate=13 October 20092009-01-30|accessdate=2009-10-13}}</ref> The ships had a total of 880 rounds during wartime for 110 shells per gun.<ref name=r3>Roberts, p. 83</ref>

The ships' secondary armament initially was intended to consist of eighteen {{convert|3|in|adj=on}} [[QF 12 pounder 12 cwt naval gun|12-pdr]] guns, but firing trials against the old destroyer {{HMS|Skate|1895|2}} in 1906 showed that the 12-pdr gun had little chance of stopping a destroyer or torpedo boat before it got close enough to fire its torpedoes.

(contracted; show full)s had a maximum depression of 10° and a maximum elevation of 20°. They fired {{convert|25|lb|kg|adj=on}} projectiles at a muzzle velocity of {{convert|2300|-|2370|ft/s|m/s|abbr=on}}; at 20°, this provided a maximum range of {{convert|9600|yd|m|abbr=on}} using [[British ordnance terms#Common Pointed|Common pointed]] shells. Their rate of fire was 8–10 rounds per minute.<ref>{{cite web|url=http://www.navweaps.com/Weapons/WNBR_4-40_mk3.htm|title=British 4"/40 (10.2 cm) QF Marks I, II and III |date=
10 January 2009|accessdate=13 October 20092009-01-10|accessdate=2009-10-13}}</ref>

These guns were replaced by twelve [[BL 4 inch Mk IX naval gun|4-inch BL MK IX]] guns on CPI mountings on ''Inflexible'' during 1917.<ref name=r3/> They could depress 10° and elevate to 30°. They fired {{convert|31|lb|kg|adj=on}} shells at a muzzle velocity of {{convert|2625|ft/s|m/s|abbr=on}} to a maximum range of {{convert|13500|yd|m|abbr=on}} at a rate of fire of 10–12 rounds per minute.<ref>{{cite web|url=http://www.navweaps.com/Weapons/WNBR_4-45_mk9.htm|title=Britain 4"/45 (10.2 cm) BL Marks IX and X|date=28 February 2009 |accessdate=15 October 2009009-02-28 |accessdate=2009-10-15}}</ref>

The QF Mk III guns were replaced by twelve [[BL 4 inch naval gun Mk VII|4-inch BL MK VII]] guns on PVI mountings on ''Indomitable'' during 1917.<ref name=r3/> These guns could depress 7° and elevate to 15°. They fired {{convert|31|lb|kg|adj=on}} shells at a muzzle velocity of {{convert|2864|ft/s|m/s|abbr=on}} which gave a maximum range of {{convert|11600|yd|m|abbr=on}}. Their rate of fire was 6–8 rounds per minute. An additional gun was fitted on ''Indomitable'' in April 1917 as an [[Anti-aircraft warfare|anti-aircraft]] (AA) gun. It was mounted on a MK II high-angle mounting with a maximum elevation of 60°. It had a reduced propellant charge with a muzzle velocity of only {{convert|2864|ft/s|m/s|abbr=on}}.<ref>{{cite web|url=http://www.navweaps.com/Weapons/WNBR_4-50_mk7.htm|title=BL 4 inch naval gun Mk VII|accessdate=15 October 20092009-10-15}}</ref>

Earlier anti-aircraft guns included a 3-pounder [[Hotchkiss gun]] on a high-angle Mk Ic mounting with a maximum elevation of 60°. Both ''Invincible'' and ''Indomitable'' carried theirs from November 1914 to August 1917.<ref name=r3/> It fired {{convert|3.3|lb|kg|adj=on}} projectiles at a muzzle velocity of {{convert|1873|ft/s|m/s|abbr=on}} at a rate of fire of 20 rounds per minute. This provided a maximum range of {{convert|7600|yd|m|abbr=on}} at 45°, but the maximum effective anti-aircraft range was only {{convert|1200|yd|m|abbr=on}}.<ref>{{cite web|url=http://www.navweaps.com/Weapons/WNBR_3pounder_H_mk1.htm|title=British Hotchkiss 3-pdr (1.4 kg) [1.85"/40 (47 mm)] QF Marks I and II|date=27 February 2007|accessdate=15 October 2009007-02-27|accessdate=2009-10-15}}</ref>

Each of the ''Invincible''s was also fitted with a single [[QF 3 inch 20 cwt]] AA gun on a high-angle MKII mount at the aft end of the superstructure.<ref name=r3/> This had a maximum depression of 10° and a maximum elevation of 90°. It fired a {{convert|12.5|lb|kg|adj=on}} shell at a muzzle velocity of {{convert|2500|ft/s|m/s|abbr=on}} at a rate of fire of 12–14 rounds per minute. They had a maximum effective ceiling of {{convert|23500|ft|m|abbr=on}}.<ref>{{cite web|url=http://www.navweaps.com/Weapons/WNBR_3-45_mk1.htm|title=British 12-pdr [3"/45 (76.2 cm)] 20cwt QF HA Marks I, II, III and IV |date=27 February 2007|accessdate=15 October 2009007-02-27|accessdate=2009-10-15}}</ref>

Gardiner and Gray quote an additional seven [[Maxim gun]]s, but this cannot be confirmed. Five [[British 18 inch torpedo|18-inch (450-mm)]] submerged [[torpedo tube]]s were mounted on the ''Invincible''s, two on each side and one in the stern<ref name=c24/> and fourteen torpedoes were carried.<ref name=r3/>

===Fire control===
(contracted; show full)[[Category:Battlecruiser classes]]
[[Category:Invincible-class battlecruisers| ]]
[[Category:World War I battlecruisers of the United Kingdom| Invincible class battlecruiser]]
[[Category:Ship classes of the Royal Navy]]

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