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Thread: China's new launch vehicles Long March Series

  1. #151
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    Long March-8 to debut in 2020.

    http://www.ecns.cn/news/2019-11-20/d...x5065018.shtml

    China's new medium-lift launch vehicle Long March 8 will make its maiden flight next year, and it has entered the final stage of assembly and testing, according to the Fifth China International Commercial Aerospace Forum held on Tuesday.

    Long March 8 has been designed for commercial use to compete in the world market for carrying a maximum payload of 4.5 tons to the Sun synchronous orbit, according to the forum held in Wuhan, Central China's Hubei province.

    It will meet clients' requirements on low cost and good performance, said Tang Yihua, deputy head of the China Academy of Launch Vehicle Technology under the China Aerospace Science and Technology Corporation.

    It is estimated that after being put on the market, its annual output will meet the demand of at least 10 launches in the early stage, and more than 20 in the later stage, Tang said.
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  2. #152
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    The version of Long March 5 to launch the Chinese Space Station modules is about to be tested later this year. Its payload will be a new version of their human space capsule.

    https://spacenews.com/rocket-nears-s...n-test-launch/

    The first flight model of a rocket designed to launch modules for a Chinese space station is set to arrive at Wenchang spaceport for a crucial test mission.

    The Long March 5B launch vehicle — including a five-meter-diameter core stage and four side boosters — is due to reach Qinglan port, Hainan island, Feb.1, ship tracking reveals. Specially designed cargo vessels Yuanwang-21 and 22 collected the components at the port city of Tianjin before departing Jan. 26.

    The primary goal of the test flight is testing the Long March 5B for launching to low Earth orbit (LEO) in preparation for launch of the core module of China’s space station. A prototype of the roughly 22.5-metric-ton liftoff mass Tianhe core module was delivered to Wenchang earlier in January for integration tests.

    The launch will however carry an uncrewed test flight of a new generation crewed spacecraft designed to provide China with greater human spaceflight capabilities.

    The as-yet-unnamed spacecraft will be capable of carrying up to six astronauts, or three astronauts and 500 kilograms of cargo. It is also designed to facilitate missions to the moon and deep space. The Shenzhou can carry three astronauts to LEO and has been used of all six of the country’s crewed missions.

    The test launch is likely to take place in April following launch preparations at vertical integration facility. The previous missions involving the standard Long March 5 variant took roughly two months from arrival to launch. The Long March 5B mission is proceeding following a successful return-to-flight of the third Long March 5 in late December.
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  3. #153
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    Long March 7A fail's on its maiden flight.

    http://www.chinadaily.com.cn/a/20200...21727f868.html

    The debut mission of China's newest carrier rocket – Long March 7A – failed on Monday night.

    The 60.1-meter rocket blasted off at 9:34 pm from a launch pad in the Wenchang Space Launch Center in Hainan province but experienced malfunctions during the flight, according to the Xinhua News Agency.
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  4. #154
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    Andrew Jones reports that the failure could affect upcoming launches. Which missions are affected will depend in which stage the failure occurred.

    https://spacenews.com/launch-of-chin...ds-in-failure/

    It modular design means it shares common engines with other new, cryogenic Long March vehicles. Depending on the cause of the anomaly, the failure could impact upcoming missions.

    The RP-1/liquid oxygen side boosters and core stage share commonalities with the Long March 5, including YF-100 engines. An issue with these engines could potentially impact planned Long March 5 missions, including China’s first independent interplanetary mission—to Mars—in July. It could also have knock-on effects for China’s space station plans.

    If the issue was with the second stage YF-115 engines, the impact of the failure could be limited to the Long March 6 and 7 series rockets. A new variant of the Long March 6 developed by the Shanghai Academy of Spaceflight Technology is expected later in 2020.

    An upper stage problem could see knock-on effects for the older, Long March 3 series rockets, as the Long March 7A third stage is adapted from the Long March 3B. The 3B is the current workhorse for Chinese GTO launches.
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  5. #155
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    Did not see any report on China's controlled fall of its 1st stage.

    http://novosti-kosmonavtiki.ru/forum...message1970717

    China's first accurate controlled rocket fall using a parachute] On March 9 this year, China successfully launched a CZ-3B booster rocket with the 54th Baidou navigation satellite. This mission was the first to test the technology of controlling the landing zone of a booster stage using a parachute. On April 2, the developer showed a video of a falling stage, which reveals the canopy of the parachute and accurately lands.
    More than 10 years have passed from the proposal to the successful implementation of this test. ... The test confirmed the feasibility of the general scheme of the parachute control system and laid the foundation for further iterative improvements. The developers said that this year there will be one or two additional tests. Also, to further improve the accuracy of landing at a given point, a parachute with an increased dome area will be used.
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  6. #156
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    Quote Originally Posted by selvaarchi View Post
    Did not see any report on China's controlled fall of its 1st stage.

    http://novosti-kosmonavtiki.ru/forum...message1970717
    Leonard David has it in his latest post.

    https://www.leonarddavid.com/china-t...achute-system/

    Chinese researchers are working on a new system designed to prevent rocket boosters from falling unpredictably in areas with human activity.
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  7. #157
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    Designers working on new, more powerful Long March 11 rocket

    http://www.chinadaily.com.cn/a/20200...241159c51.html

    Designers have begun to develop an upgraded version of the Long March 11 carrier rocket called the Long March 11A, which they said will be wider and taller than the current model and have greater thrust.
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