| 词条 | Long March 4B | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 释义 |
|image = CZ-4B.svg |caption = Long March 4B |imsize = 75px |function = Carrier rocket |manufacturer = SAST |country-origin= China |status = Active |sites = {{plainlist|
}} |height = {{convert|44.1|m|ft}}[1] |diameter = {{convert|3.35|m|ft}}[2] |mass = {{convert|249200|kg|lb}}[2] |stages = 3 |launches = 31 |success = 30 |fail = 1 |first = 10 May 1999 |last = 24 October 2018 |capacities = |location=LEO |kilos = {{convert|4200|kg|lb}}[3] }} {{Infobox Rocket/Payload|location=SSO |kilos = {{convert|2800|kg|lb}}[3] }} {{Infobox Rocket/Payload|location=GTO |kilos = {{convert|1500|kg|lb}}[3] |family = Long March |derivatives= Long March 4C |stagedata= {{Infobox rocket/Stage |type = stage |stageno = First |name = |length = 27.91 m |diameter = 3.35 m |empty = |gross = |propmass = {{convert|182000|kg|abbr=on}} |engines = 4 YF-21C |thrust = {{convert|2961.6|kN|abbr=on}} |alt-thrust = |burntime = |SI = {{convert|2550|m/s|isp|abbr=on}} |fuel = {{N2O4}} / UDMH }} {{Infobox rocket/Stage|type = stage |stageno = Second |name = |length = 10.9 m |diameter = 3.35 m |empty = |gross = |propmass = {{convert|52700|kg|abbr=on}} |engines = 1 YF-24C (1 x YF-22C (Main)) (4 x YF-23C (Vernier)) |thrust = {{convert|742.04|kN|abbr=on}} (Main) {{convert|47.1|kN|abbr=on}} (Vernier) |alt-thrust = |burntime = |SI = {{convert|2942|m/s|isp|abbr=on}} (Main) {{convert|2834|m/s|isp|abbr=on}} (Vernier) |fuel = {{N2O4}} / UDMH }} {{Infobox rocket/Stage|type = stage |stageno = Third |name = |length = 14.79 m |diameter = 2.9 m |empty = |gross = |propmass = {{convert|14000|kg|abbr=on}} |engines = 2 YF-40 |thrust = {{convert|100.85|kN|abbr=on}} |alt-thrust = |burntime = |SI = {{convert|2971|m/s|isp|abbr=on}} |fuel = {{N2O4}} / UDMH }} The Long March 4B ({{zh|长征四号乙火箭}}), also known as the Chang Zheng 4B, CZ-4B and LM-4B is a Chinese orbital carrier rocket. Launched from Launch Complex 1 at the Taiyuan Satellite Launch Center, it is a 3-stage rocket, used mostly to place satellites into low Earth and sun synchronous orbits. It was first launched on 10 May 1999, with the FY-1C weather satellite, which would later be used in the 2007 Chinese anti-satellite missile test. The Chang Zheng 4B experienced its only launch failure on 9 December 2013, with the loss of the CBERS-3 satellite.[4] List of launches{{main|List of Long March launches}}
References1. ^{{cite book|author=Brian Harvey|title=China in Space: The Great Leap Forward|url=https://books.google.com/books?id=hZBAAAAAQBAJ&pg=PA96|year=2013|publisher=Springer Science & Business Media|isbn=978-1-4614-5043-6|page=96}} {{Portal|Spaceflight|China}}{{Expendable launch systems}}{{Chinese space program}}{{Long March rockets}}{{rocket-stub}}{{china-stub}}Langer Marsch 42. ^1 {{cite web|url=http://www.astronautix.com/lvs/cz4b.htm|title=CZ-4B|author=Mark Wade|publisher=Encyclopedia Astronautica|accessdate=2008-04-27|deadurl=yes|archiveurl=https://web.archive.org/web/20080321204455/http://www.astronautix.com/lvs/cz4b.htm|archivedate=2008-03-21|df=}} 3. ^1 2 {{cite web|url=http://space.skyrocket.de/doc_lau_det/cz-4b.htm|title=CZ-4B (Chang Zheng-4B)|author=Gunter Krebs|publisher=Gunter's Space Page|accessdate=2008-04-27}} 4. ^{{cite web|last=Boadle|first=Anthony|title=China-Brazil satellite launch fails, likely fell back to Earth|url=https://www.reuters.com/article/2013/12/09/space-china-brazil-satellite-idUSL1N0JO0UQ20131209|publisher=Reuters|accessdate=10 December 2013}} 5. ^{{cite news |url=http://spacenews.com/39687china-great-wall-pins-december-long-march-launch-failure-on-fuel-line/ |title=China Great Wall Pins December Long March Launch Failure on Fuel-line Clog |first=Peter B. |last=de Selding |work=SpaceNews |date=3 March 2014 |access-date=10 August 2015}} 6. ^{{cite news |url=https://www.nasaspaceflight.com/2018/10/chinese-long-march-4b-lofts-haiyang-2b/ |title=Chinese Long March 4B lofts Haiyang-2B |work=NASASpaceFlight.com |first=Rui C. |last=Barbosa |date=24 October 2018 |access-date=24 October 2018}} 7. ^{{cite web |url=https://space.skyrocket.de/doc_lau_det/cz-4b.htm |title=CZ-4B (Chang Zheng-4B) |work=Gunter's Space Page |first=Gunter |last=Krebs |access-date=25 October 2018}} 1 : Long March (rocket family) |
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