DF-4#DF-4A

{{Short description|Chinese ICBM}}

{{For|the locomotive|China Railways DF4}}

{{Infobox weapon

| is_missile = yes

| name = DF-4/CSS-3

| image = Misil DF-4.svg

| image_size = 120

| type = ICBM

| origin = People's Republic of China

| vehicle_range = 5,500 km{{Cite web|url=https://nuke.fas.org/guide/china/theater/df-4.htm|title=DF-4 - China Nuclear Forces|website=nuke.fas.org}}{{Cite web|url=https://www.globalsecurity.org/wmd/world/china/df-4.htm|title=DF-4 - China Nuclear Forces|website=www.globalsecurity.org}}

| filling = One,The Federation of American Scientists & The Natural Resources Defense Council Chinese Nuclear Forces and U.S. Nuclear War Planning p. 202 [http://www.fas.org/nuke/guide/china/Book2006.pdf] or three (DF-4A){{Cite web |url=http://www.5school.com/wap.aspx?nid=12900&p=2&cid=100&sp=87 |title=中国东风系列导弹简介 |access-date=2010-04-28 |archive-date=2012-08-01 |archive-url=https://web.archive.org/web/20120801025217/http://www.5school.com/wap.aspx?nid=12900&p=2&cid=100&sp=87 |url-status=dead }}http://csatm.cn/f0309110006.html{{dead link|date=January 2018 |bot=InternetArchiveBot |fix-attempted=yes }}

| yield = 3.3 Mt

| engine = Liquid fueled

| guidance = Astro-inertial guidance

| accuracy = 1.5 km

| speed = ?

| length = 28.05 m

| diameter = 2.25 m

| weight = 82,000 kg

| payload_capacity = 3300 kt

| manufacturer = Factory 211 (Capital Astronautics Co.)

| unit_cost = ?

| service = 1975/1976PRC Defense Policy and Armed Forces, National Intelligence Estimate 13-76, November 11, 1976, p. 47.–present

| used_by = PLA Rocket Force

}}

The Dong Feng 4 ({{zh|s=东风-4|p=Dōng Fēng Sì|l=East Wind 4}}) or DF-4 (also known as the CSS-3) is a first-generation two-stage Chinese intercontinental ballistic missile{{Cite web |url=http://www.wpeu.net/article/Article.asp?ArticleId=1485 |title=东风4型洲际导弹 (Dongfeng VI intercontinental ballistic missile) |access-date=2009-07-22 |archive-url=https://web.archive.org/web/20090915210157/http://www.wpeu.net/article/Article.asp?ArticleId=1485 |archive-date=2009-09-15 |url-status=dead }} with liquid fuel (Nitric acid/Unsymmetrical dimethylhydrazine). It was thought to be deployed in limited numbers in underground silos beginning in the late 1970s and early 1980s. The Dong Feng 4 has a takeoff thrust of 1,224.00 kN, a takeoff weight of 82000 kg, a diameter of 2.25 m, a length of 28.05 m and a fin span of 2.74 m. The range of the Dong Feng 4, which is equipped with a 2,190 kg nuclear warhead with 3.3 Megaton yield, with a nominal range of 5,500 km. This gives it sufficient range to strike targets as far away as Russia, India, and American bases in the Pacific.{{Cite journal|last=Diamond|first=Howard|url=https://www.questia.com/read/1P3-45738834|title=Chinese Strategic Plans Move Forward with Missile Test|journal=Arms Control Today|publisher=Arms Control Association|date=July 1, 1999|issn=0196-125X|access-date=|url-access=|via=|archive-date=October 19, 2019|archive-url=https://web.archive.org/web/20191019145142/https://www.questia.com/read/1P3-45738834|url-status=dead}} The missile uses an inertial guidance system, resulting in a large CEP of 1,500 meters. As of 2017, 10–15 launchers are deployed.{{cite report |page=29 |url=https://www.nasic.af.mil/LinkClick.aspx?fileticket=F2VLcKSmCTE%3d&portalid=19 |title=Ballistic and Cruise Missile Threat |id=NASIC-1031-0985-17 |publisher=Defense Intelligence Ballistic Missile Analysis Committee |date=June 2017 |access-date=16 July 2017}}