| 词条 | Green Mace |
| 释义 |
| name = Green Mace | image = File:Green Mace - overall.JPG | image_size = | alt = An anti-aircraft gun on a wheeled chassis. On the back of the long gun barrel are two large drums for holding ammunition. There is a small control booth on the right hand side of the vehicle. | caption = Green Mace prototype at the Royal Artillery Museum, Woolwich, in 2015. | origin = United Kingdom | type = Heavy anti-aircraft gun | is_ranged = yes | is_bladed = | is_explosive = | is_artillery = yes | is_vehicle = | is_missile = | is_UK = yes | service = | used_by = | wars = | designer = RARDE, Fort Halstead | design_date = c. 1956 | manufacturer = Vickers | unit_cost = | production_date = 1956 | number = 1 | variants = | spec_label = Prototype | weight = {{convert|28000|kg|lb|abbr=on}}[1] | length = | part_length = | width = | height = | diameter = | crew = 1{{dubious|The members of the reloading crew, drivers etc would normally be considered part of the crew|date=March 2015}} | passengers = | cartridge = Folding Fin Discarding Sabot | cartridge_weight = | caliber = 102mm{{clarify|while this is the correct caliber, if it fired discarding sabot rounds then the actual projectile must have been a lot thinner than 102mm. Yet we have no information in the article at present to tell us what diameter the projectile was|date=December 2016}} | barrels = | action = | rate = 96 rounds/minute | velocity = {{convert|1200|m/s|ft/s}} | range = {{convert|7600|m|yd}} | max_range = | feed = twin rotating drums with 14 rounds in each | sights = | breech = | recoil = | carriage = | elevation = | traverse = | armour = None | primary_armament = | secondary_armament = | engine = | engine_power = | pw_ratio = | payload_capacity = | transmission = | suspension = | clearance = | fuel_capacity = | vehicle_range = | speed = | guidance = | steering = | wingspan = | propellant = | ceiling = | altitude = | depth = | boost = | accuracy = | launch_platform = | transport = }} Green Mace, also known as the QF 127/58 SBT X1, was a British heavy anti-aircraft gun of the 1950s. It used a variety of techniques to improve the firing rate of the gun, and the velocity of its projectiles. Although a prototype was built and survives today, it was rendered obsolete by the development of the guided surface-to-air missile and thus never entered production. HistoryGreen Mace was the Rainbow Code assigned to the QF 127/58 SBT X1 during its development. The original specifications were for a 5-inch gun with water-cooled barrel, firing folding-fin discarding sabot dart projectiles.[2] Two rotary magazines, each holding 14 rounds, would allow for a high rate of fire on the order of 75 rounds per minute (RPM). The gun was developed by Vickers under the direction of the Royal Armaments Research and Development Establishment at Fort Halstead.[3] It demonstrated a firing rate as high as 96 rounds per minute, about six times that of the famous 8.8 cm Flak 18/36/37/41[4] and even more than that of the more comparable 12.8 cm FlaK 40. DevelopmentA proof of concept prototype was built with a 4.02 inch (102 mm) barrel, but otherwise was as intended. It was mostly automatic, and could be operated by a single person sitting in a covered control cabin on the right hand side of the vehicle. However, the enormous power and ammunition requirements for the piece resulted in it having to have two trailers in support - one for power, and one for ammunition - and a crew with a small crane in order to reload the two ammunition drums. With only 28 rounds available in the drums, and an 80-90 rounds/minute fire rate, reloading was a frequent task. It took a crew between ten and fifteen minutes to reload.[3] With the advent of guided missiles, and the transfer of responsibility for ground-based, anti-aircraft defence of UK airspace from the British Army to the Royal Air Force, the project was cancelled in 1957. Other versionsSome sources suggest that a naval version of Green Mace was planned as a new dual purpose gun for the Royal Navy's destroyers, and a twin version of the same gun intended for cruisers reached the design stage, but neither went any further, and they were cancelled outright in 1957.[5] Original work was done on two other projects: Longhand and Ratefixer. Both were of smaller calibre than Green Mace but were designed to try and increase the rate of fire and calibre used.[3] Similar concepts were also said to be used in the Red Queen gun, which was essentially a medium-weight version of Green Mace. See also
Weapons of comparable role, performance and era
References{{Commons category|Green Mace}}1. ^{{cite book|last1=Crabtree|first1=James|title=On Air Defense|date=1994|publisher=Praeger|location=Westport|isbn=9780275949396|page=69}} {{DEFAULTSORT:QF 127 58 SBT X1}}2. ^{{Cite book|title = Conway's All the World's Fighting Ships 1947 - 1982 - Part I: The Western Powers|last = Robert|first = Gardiner|publisher = Conway Maritime Press|year = 1983|isbn = 978-0851772257|location = |pages = 152}} 3. ^1 2 {{Cite book|title = Heavy AA 102mm (ARDE) QF 127/58 SBT X1 'Green Mace' Information Card|publisher = The Royal Artillery Museum|year = |location = Woolwich|url = https://www.flickr.com/photos/sarge_schultz/1672459411/}} 4. ^{{cite book|last=Westermann|first=Edward B.|title=Flak: German Anti-aircraft Defenses 1914-1945|year=2005–2009|origyear=2001|publisher=University Press of Kansas|pages=19, 36–38, 44, 53, 58, 83, 90, 108, 128–129|isbn=9780700614202|series=Modern War Studies}} 5. ^{{Cite book|title = Conway's All the World's Fighting Ships 1947 - 1982 - Part I: The Western Powers|last = Robert|first = Gardiner|publisher = Conway Maritime Press|year = 1983|isbn = 978-0851772257|location = |pages = 130}} 4 : Anti-aircraft guns of the United Kingdom|Cold War artillery of the United Kingdom|Anti-aircraft guns of the Cold War|127 mm artillery |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。