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Thread: China's new launch vehicles Long March Series

  1. #121
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    That's CZ-9 on the extreme right in the graph.

  2. #122
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    China is transporting their 2nd Long March 5 from China's Tianjin Port to their new space port Wenchang on Hainan island. It will be launching Shijian-18 communication satellite in June. There will also be a 3rd launch of the Long March 5 later this year. It will be than carrying Chang'e 5 to the moon.

    http://news.xinhuanet.com/english/20..._136232125.htm

    China's Long March-5 Y2 carrier rocket departed northern China's Tianjin Port for the launch base in southern Hainan Monday.

    Monday is also China's second Space Day, which was chosen to mark the anniversary of the country's first satellite launch Dongfanghong-1 in 1970.

    Carried by special rocket-carrying ships, the rocket will arrive in Wenchang, Hainan Province, for the scheduled launching of the Shijian-18 communication satellite in June.

  3. #123
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    China has rolled out the 2nd LM5 ready for the the launch next month. The article also has information on the LM5B. This version will put 20 tons into LEO and will be used to launch the CSS modules.

    http://gbtimes.com/china/long-march-...second-mission

    "China has rolled out its largest and most powerful launch vehicle, the Long March 5, in preparation for the rocket's second launch from the Wenchang Satellite Launch Centre.

    Transfer of Long March 5 (Y2) from the vertical assembly building to the launch tower began at 08:30 local time (00:30 UTC) Monday, completing the 2.7 km trip around 11:00 am.

    This second mission will see the 2.5 stage Long March 5 launch the Shijian-18 experimental telecommunications satellite to geostationary transfer orbit.

    The launch window opens on July 2 and runs to July 5. The launch is, as with other launches from the new launch centre on Hainan Island, expected to be streamed live."

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  4. #124
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    Andrew Jones on why the LM5 is crucial to China's long term plans.

    In the article he also highlights the LM5B which will be used to launch the CSS segments to space starting in 2019. He expects two test flights of this version in 2018. One of them may carry a test capsule for a large, 20-tonne next-generation crewed spacecraft for deep space missions.

    http://gbtimes.com/china/why-chinas-...pace-ambitions

    "China's second launch of its Long March 5 rocket suffered an anomaly that resulted in the loss of the large, experimental Shijian-18 satellite on Sunday. The launch failure is a blow to China, as the heavy-lift rocket is both crucial to China's future space plans and a symbol of its technical prowess and commitment to space exploration.

    The Long March 5 was developed to greatly boost China's launch capabilities, and has more than doubled the payload mass the country can deliver to low Earth and geosynchronous transfer orbits - and beyond.

    The rocket's heavy-lift capabilities puts China in rarified company in the space world and allow it attempt missions only a few nations can, or ever have.

    As such, it is key to the country's most ambitious space plans for the next five-to-ten years, both for human spaceflight, to low Earth orbit and, later, the Moon, and robotic space exploration, including interplanetary missions.

    Getting the rocket flying again soon will be a priority, to keep the much-delayed space station and its Moon and Mars robotic programmes on track."

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  5. #125
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  6. #126
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    Long March 5 will launch again in 2Q 2018

    https://gbtimes.com/china-is-plannin...g-july-failure

    China's plans to get its heavy-lift Long March 5 rocket flying again are taking shape, with a heavy, experimental communications satellite being prepared for launch in 2018.

    Yang Baohua, vice president of the China Aerospace Science and Technology Corporation (CASC), announced on Wednesday (Chinese) at an event in Beijing that a large Dongfanghong-5 satellite bus would be launched in 2018.

    The first Dongfanghong-5 (DFH-5), designated as Shijian-18, was lost on the second flight of the Long March 5 on July 2, with the rocket and payload failing to reach orbit due to an apparent first stage propulsion issue.

    Only the Long March 5, which successfully debuted in November 2016 and is by far China's largest and most powerful launch vehicle, is capable of lifting such a payload to a high orbit.

  7. #127
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    China test fires YF-77 rocket engine ahead of return-to-flight of Long March 5.

    https://gbtimes.com/china-test-fires...f-long-march-5

    China has successfully performed a hot-fire test of the engine for the core of the Long March 5, the country's largest launch vehicle, ahead of a return-to-flight and a range of subsequent major upcoming missions.

    The test of the YF-77 rocket engine took place in a ravine near Xi'an in Shaanxi Province at a site belonging to the Academy of Aerospace Propulsion Technology (AAPT), an institute under CASC, the main contractor for the Chinese space programme.

  8. #128
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    Now China has announced the LM5 will launch in the 2nd half of this year.

    https://gbtimes.com/chinas-long-marc...8?cat=business

    China's Long March 5 heavy-lift space launch vehicle will attempt a return to flight in the second half of 2018, according to an official with the country's main space contractor.

    The third Long March 5 rocket will launch from the Wenchang Space Launch Centre on the southern island province of Hainan carrying Shijian-20, a large, experimental satellite to be placed into geostationary orbit.

    The information comes from Bao Weimin, head of the Science and Technology Committee of the China Aerospace Science and Technology Corporation (CASC), the country's main space contractor, who spoke to state media on Friday.

  9. #129
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    spaceflight101 contains details of the possible cause of the LM5 launch failure.

    https://spaceflight101.com/china-pro...ngine-testing/

    Unconfirmed reports emerged in late November, citing sources within the Long March 5 Program Directorate, that the cause of the failure was pin-pointed. According to this unconfirmed information, the cause of the failure was a structural problem causing the turbopump rotor shaft enclosure cap within one of the YF-77 engines to break off and create a blockage within the propellant line.

    Official comments made by Tianjin Long March Launch Vehicle Manufacturing Co. – producer of the CZ-5 and 7 rockets, confirmed that the cause of the failure was identified by late 2017 and design changes on the YF-77 engines were being implemented. Testing of the upgraded engine design began in mid-February at the Academy of Aerospace Propulsion Technology (AAPT) test facility near Xi’an. This marked the first of several YF-77 test firings planned in the first half of the year to a) verify the correct cause was identified for the CZ-5 Y2 failure and b) fully qualify changes made to the turbopump design in preparation for the next launch of the Long March 5.

    It is understood that the Long March 5 Y3 mission will employ a set of newly built YF-77 engines implementing the changes identified in the wake of the failure. An existing batch of YF-77 units is to undergo inspections and modification followed by acceptance testing before being available for future flights.

  10. #130
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    Andrew Jones on plans for the LM5.

    https://gbtimes.com/chinas-long-marc...-space-program

    China's Long March 5 heavy-lift space launch vehicle will attempt a return to flight in the second half of 2018, according to an official with the country's main space contractor.

    The third Long March 5 rocket will launch from the Wenchang Space Launch Centre on the southern island province of Hainan carrying Shijian-20, a large, experimental satellite to be placed into geostationary orbit.

    The information comes from Bao Weimin, head of the Science and Technology Committee of the China Aerospace Science and Technology Corporation (CASC), the country's main space contractor, who spoke to state media on Friday.

  11. #131
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    China to launch Long March-5B carrier rocket in 2019. This is the version that will loft the Chinese Space Station modules.

    http://www.xinhuanet.com/english/201..._137017712.htm

    China will launch the Long March-5B carrier rocket into space in 2019, according to a spokesperson for the China Manned Space Engineering Office (CMSEO).

    The rocket will help carry the core module and experiment modules to China's space station.

    The Long March-5B carrier rocket will undergo testing in March in preparation for the first launch mission.

  12. #132
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    More details of the next few launches of the LM5.

    http://spacenews.com/chinas-long-mar...-crucial-test/

    China’s most powerful rocket will fly for the third time late this year, with success of the launch to be crucial to upcoming projects including a lunar sample return, space station module launch and a 2020 mission to Mars.

    Speaking on the sidelines of the country’s annual parliamentary sessions in Beijing in early March, senior aerospace officials revealed to media — in piecemeal fashion — details of the return-to-flight of the Long March 5.

    The launch will carry an experimental telecommunications satellite named Shijian-20, or ‘Practice-20’ in Chinese, based on a new, large DFH-5 satellite platform.

    Zhang Hongtai, president of the China Academy of Space Technology (CAST), a developer and maker of satellites and spacecraft, stated that the Shijian-20 will increase the country’s high-throughput communications satellite capacity to 300 gigabits per second, up from the current 20 Gbps with the predecessor DFH-4.

    After on-orbit technical verification of this first satellite, which he suggests would launch in November, Zhang states that future satellites using the DFH-5 platform will be able to supply capacity of 1 terabit per second.

  13. #133
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    More details of the Long March-5B carrier rocket.

    http://www.xinhuanet.com/english/201..._137050675.htm

    The new generation of carrier rocket, the Long March-5B, has entered the model testing phase in preparation for space station missions.

    Developed by the CAST, the rocket will have a total length of 53.7 meters, with a core-level diameter of five meters, a booster diameter of 3.35 meters, a takeoff weight of 837 tonnes.

    It will have a low-Earth orbit carrying capacity greater than 22 tonnes, the largest among Long March carrier rockets.

  14. #134
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    China has identified the cause of the Long March-5 Y2 rocket failure. The Long March-5 Y3 will be launched in late 2018.

    http://www.xinhuanet.com/english/201..._137114990.htm

    China plans to launch its heavy-lift carrier rocket, the Long March-5 Y3, in late 2018, after finding the cause of the failure of the Long March-5 Y2, according to the State Administration of Science, Technology and Industry for National Defense.

    The Long March-5 Y2 rocket was launched from Wenchang Space Launch Center in the southern province of Hainan on July 2, 2017, but a malfunction happened less than six minutes after liftoff.

    Analysis based on computer simulations and ground tests showed that a problem occurred in a turbine exhaust device in the engine of the first stage of the rocket, the administration said Monday.

  15. #135
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    Now more details of the LM 8.

    http://xinhuanet.com/english/2018-04/30/c_137147249.htm

    China aims to recover the first stage of the Long March-8 carrier rocket, which is still under development and is expected to make its maiden flight around 2021, according to a Chinese rocket expert.

    It was part of China's endeavors to develop reusable space vehicles, Long Lehao, chief designer of carrier rockets at the China Academy of Launch Vehicle Technology, told a space conference in Harbin, capital of northeast China's Heilongjiang Province.

    The Long March-8 rocket will have two stages and two boosters: the first stage and boosters are expected to be retrieved through vertical landing, said Long, who is also an academician of the Chinese Academy of Engineering.

  16. #136
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    China to add new rockets to their fleet. This includes the LM8 - a reusable rocket in 2021.

    http://www.xinhuanet.com/english/201..._137295940.htm

    China aims to develop a new series of small, medium, large and heavy-lift Long March carrier rockets by 2030 to meet the demands of its space operations, according to an expert.

    The capacity of Chinese rockets would reach 140 tonnes for low-Earth orbit, 44 tonnes for Earth-Mars transfer orbit, 50 tonnes for Earth-Moon transfer orbit and 66 tonnes for geosynchronous transfer orbit in 2030, said Long Lehao, an academician of the Chinese Academy of Engineering and a chief designer at the China Academy of Launch Vehicle Technology, when delivering a speech in Tsinghua University.

  17. #137
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    More details of the LM8 and LM9 reveled, LM8 was originally intended to be an expendable rocket but got changed to reusable after I think SpaceX's success.

    http://spacenews.com/china-reveals-d...rch-8-rockets/

    A senior designer with the China Academy of Launch Vehicle Technology has presented updated details for an upcoming series of new rockets to expand China’s launch capabilities, including super-heavy-lift and reusable rockets.

    Long Lehao, a chief designer with CALT, a major launch vehicle institute under the main contractor for China’s space activities, revealed the details in a lecture at Tsinghua University in Beijing on May 31.

    Long gave an overview of the history and progress of Chinese launch vehicles before providing updates on new projects under development, notably the Long March 9.

  18. #138
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    China successfully test fires its new solid-fuel booster engine and its servomechanism system.

    http://www.xinhuanet.com/english/201..._137308839.htm

    With a diameter of two meters, the booster engine is expected to be used on China's next generation medium-sized carrier rocket, according to a China Aerospace Science and Technology Corporation statement.

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