NASASpaceFlight.com Forum
International Space Flight (ESA, Russia, China and others) => Chinese Launchers => Topic started by: SmallKing on 11/08/2017 12:28 pm
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YZ-1B is a simplified version of YZ-1 upper stage. No more known information regarding this mission for now
https://mp.weixin.qq.com/s/PF-CZo9gnbsGZH1-x02EJA
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This new upper stage named YZ-1S, S for Shangye(Commercial in Chinese), YZ-1S has the capacity of coasting for 6.5 hours
https://www.chinaspaceflight.com/rocket/upper-stage/YZ-1S/YZ-1S.html
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This new upper stage named YZ-1S, S for Shangye(Commercial in Chinese), YZ-1S has the capacity of coasting for 6.5 hours
https://www.chinaspaceflight.com/rocket/upper-stage/YZ-1S/YZ-1S.html
Actually it's the vanilla YZ-1 that can function for 6.5 hours; YZ-1B (the 1S name is from an older report) "usually have a working time of less than 1 hour" (which means it will usually be used as an apogee trim stage for polar/LEO missions, replacing the SM/SMA solid stages and used particularly for 1-2 tonne satellites where the CZ-2C cannot carry them to polar orbits right now; SAST's YZ-3 will have a similar function).
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This new upper stage named YZ-1S, S for Shangye(Commercial in Chinese), YZ-1S has the capacity of coasting for 6.5 hours
https://www.chinaspaceflight.com/rocket/upper-stage/YZ-1S/YZ-1S.html
Actually it's the vanilla YZ-1 that can function for 6.5 hours; YZ-1B (the 1S name is from an older report) "usually have a working time of less than 1 hour" (which means it will usually be used as an apogee trim stage for polar/LEO missions, replacing the SM/SMA solid stages and used particularly for 1-2 tonne satellites where the CZ-2C cannot carry them to polar orbits right now; SAST's YZ-3 will have a similar function).
Will it replace the CTS upper stage too??