Editing Golf-class submarine (section)

==Variants==
*'''Project 629''': The original design with the [[NATO reporting name]] Golf I, with a total of 22 boats built from 1958 through 1962. Dimensions are 98.4 m for length, 8.2 m for beam, and 7.85 m for draft. Surfaced/submerged displacements are 2794 / 3553 [[ton]]s, respectively.  Surfaced/submerged speeds are 15 / 12.5 knot, respectively. Project 629 is crewed by 80 men, and is equipped by either D-1 launching system for [[R-11 Zemlya|R-11FM]] or D-2 launching systems for [[R-13 (missile)|SS-N-4]] [[Submarine-launched ballistic missile|SLBM]]s.<ref name="Golf SSB">{{cite web| url=https://fas.org/nuke/guide/russia/slbm/629.htm | title=Soviet Golf class submarine | access-date= 14 April 2013}}</ref>
*'''Project 629B''': ''K-229'' was converted in 1958 in [[Severodvinsk]], under Project 629B to test a newly designed on-board missile control system, which was the first-generation design based entirely on semiconductors.<ref>{{cite web|url=http://russian-ships.info/eng/submarines/project_629.htm|title=Ballistic missile submarines - Project 629|access-date=19 December 2014}}</ref>
*'''Project 629A''': 14 Project 629/Golf I-class submarines were converted to Project 629A between 1966 and 1972, and received the NATO reporting name "Golf II". Changes include the increase of dimension, with length and draft increased to 98.9 / 8.5 m, respectively, the surfaced/submerged displacement increased to 2300–2820 / 2700–3553 [[ton|t]], respectively, and surfaced/submerged speeds increased to 17 / 14 kn respectively. Crew was increased to 83, and the launching system is D-4 for [[R-21 (missile)|SS-N-5]] SLBMs.<ref name="Golf SSB"/>
*'''Project 601''': ''K-118'' was converted from 1969 through 1974 and received the NATO reporting name "Golf III", with displacement increased to 4000 tons and number of SLBMs increased to six, and the missile type is [[R-29 Vysota|SS-N-8]].<ref name="Golf SSB"/>
*'''Project 605''': ''K-102'' was converted from 1969 through 1973 and received the NATO reporting name "Golf IV", lengthened 18.3 m with four  SLBMs to test [[R-27 Zyb#Variants|R-27K (SS-N-13)]] SLBMs.<ref name="Golf SSB"/>
*'''Project 619''': ''K-153'' was converted in 1976 to test [[R-39 Rif|SS-N-20]] SLBMs and received the NATO reporting name "Golf V".<ref name="Golf SSB"/>
*'''Project 629R''': ''K-61'', ''B-42'' and ''K-107'' were converted in [[Vladivostok]] into command posts between 1973 and 1979, with the missile and torpedo tubes removed; they received the NATO reporting name "Golf SSQ".<ref name="Golf SSB"/>
*'''Type 6631''': A Chinese-built Golf-class submarine, she was built in [[Dalian]] between 1960 and 1966, after receiving technical data from the USSR in 1959. China did not purchase SLBMs, thus Type 6631 was equipped with simulation systems and mainly used for training. Originally with [[pennant number]] 1101, it was subsequently changed to 200 in 1967. The second unit was supposed to be built and delivered by USSR (pennant number K-208), but due to the [[Sino-Soviet split]], most on-board equipment was not delivered, and the boat was used as sample for reverse engineering to complete the first unit, which entered Chinese service in August 1966. In June 1968, Type 6631 went through a major refit because China decided to adopt solid-fueled SLBMs instead of liquid-fueled SLBMs, as the Soviets used, so the simulation equipment was replaced by support equipment of solid-fueled SLBMs. In addition, the planned Chinese SLBM had different dimensions from the original Russian SLBM-equipped Golf-class submarines, so the number of missile tubes was reduced to two from the original three.<ref>{{cite web|url=http://blog.sina.com.cn/s/blog_752fd35701013rtp.html|title=6631型G级常规动力弹道导弹潜艇_舰船档案_新浪博客|access-date=19 December 2014}}</ref>
*'''Type 031''': Type 6631 went through a second major refit, which was completed in November 1978. The most important improvement is the ability to launch SLBMs under water. In addition to changing to Type 031 from the original Type 6631, the unit also received the name ''[[Great Wall]]'', when China began restore the practice of naming its warships in the 1980s. The unit is hence usually referred as ''Great Wall 200''.<ref>{{Cite web |url=http://www.haijun360.com/news/CGQT000/2011/521/11521180221EJDCFKDJ1AEK5IIFBF9.html |title=Type 031 SSN |access-date=2013-04-14 |archive-date=2013-01-23 |archive-url=https://web.archive.org/web/20130123073609/http://www.haijun360.com/news/CGQT000/2011/521/11521180221EJDCFKDJ1AEK5IIFBF9.html  }}</ref>