New generation crewed rocket (usually be called project 921 rocket) and heavy rocket (usually be called CZ-9) are currently in R/D
Quote from: mikezang on 12/11/2021 02:58 amQuote from: Steven Pietrobon on 12/11/2021 02:51 amThe correct name is CZ-5DY.Maybe CZ-5U or CZ-9U is better.Yes, but that's not what the Chinese are using.
Quote from: Steven Pietrobon on 12/11/2021 02:51 amThe correct name is CZ-5DY.Maybe CZ-5U or CZ-9U is better.
The correct name is CZ-5DY.
Quote from: XRZ.YZ on 12/11/2021 02:01 amNew generation crewed rocket (usually be called project 921 rocket) and heavy rocket (usually be called CZ-9) are currently in R/D So the 921 and the CZ-9 are two different rockets? Which one is supposed to be the crew launcher for lunar missions?Quote from: Steven Pietrobon on 12/11/2021 03:01 amQuote from: mikezang on 12/11/2021 02:58 amQuote from: Steven Pietrobon on 12/11/2021 02:51 amThe correct name is CZ-5DY.Maybe CZ-5U or CZ-9U is better.Yes, but that's not what the Chinese are using.Is CZ-5DY the correct name for the one also called CZ-9, or the "project 921"?
Updates on the New Generation crew LV. Single Core version for LEO mission would achieve 14t carrying capacity when recovering the first stage. The plan is to use tethered recovery method for recovering the first stage
On May 15, 2022 i-space successfully completed the full-process joint training of the Hyperbola-2 verification rocket at the Jiuquan Satellite Launch Center (https://mp.weixin.qq.com/s?__biz=MzU5NjQwNzI1NA==&mid=2247489432&idx=1&sn=b38bbd222dd5f123923bbce5092b5125&chksm=fe627121c915f837def4750918535f792046378df53c8f3b68ab8a6f9998838107a7707055af&scene=132#wechat_redirect)
2 series of reusables with methalox engines.1: Diameter 5m, first time been seen?2: Diameter 10.6m, 3-stage Long March 9 and a 2-stage variant. Mass: 4122t; Thrust: 5200t with 26 200t Raptor-like engines; LTO: 50t; LEO: 150t
China’s launch vehicle makers appear to be designing a fully reusable version of the Long March 9 super heavy-lift rocket needed for future megaprojects.The emergence of plans for new reusable methane-liquid oxygen launch vehicles to be ready for 2035 suggests that China is looking to make significant changes to its space transportation plans.China’s government last year signaled approval for the continued development of a super heavy-lift launcher, known as the Long March 9. The long-planned, expendable launcher is planned to be operational by 2030, in time to facilitate Chinese megaprojects including the International Lunar Research Station.
Interesting. Smart move by China. Expendable rockets have no future.
Quote2 series of reusables with methalox engines.1: Diameter 5m, first time been seen?2: Diameter 10.6m, 3-stage Long March 9 and a 2-stage variant. Mass: 4122t; Thrust: 5200t with 26 200t Raptor-like engines; LTO: 50t; LEO: 150t
A reusable design of the super heavy-lift Long March 9:D11m 1st stage with 26 200-ton thrust LOX/Methane enginesD11m 2nd stage with 4 120-ton thrust LOX/LH2 enginesD7.5m 3rd stage with 1 120-ton thrust LOX/LH2 engineLength: 111mMass: 4122 tonLTO: 50tLEO: 150t
The slide is from a presentation by Long Lehao, former chief designer of Long March rockets. Other designs of 2-stage reusable LOX/Methane rockets
Interestingly this slide explicitly states “(our design) is still at quite some distance away from @NASA_SLS & Starship’s”…
Quote from: vulture4 on 12/10/2014 05:07 pmCarig Couvalt (http://www.americaspace.com/?p=22881) suggests that China is looking at both RP-7 core/booster and LH2-core segmented SRB booster concepts for the CZ-9. I hope they look at our experience with the latter and come to their senses. Segmented SRB assembly and processing is a lot more difficult and expensive than it appears at first glance. Conversely, I would think at this point in time that a serious look at methane fuel for the core and boosters is warranted.They are a little behind the trends sometimes, but it will come. They are most willing to follow successful strategies (or not so successful: SLS), so I have little doubt that CZ-9 will be re-jiggered to be a Methane powered LV when so much of the rest of the world is pursuing Methane powered LVs.
Carig Couvalt (http://www.americaspace.com/?p=22881) suggests that China is looking at both RP-7 core/booster and LH2-core segmented SRB booster concepts for the CZ-9. I hope they look at our experience with the latter and come to their senses. Segmented SRB assembly and processing is a lot more difficult and expensive than it appears at first glance. Conversely, I would think at this point in time that a serious look at methane fuel for the core and boosters is warranted.
Two stage single stick LEO version:https://twitter.com/CNSpaceflight/status/1517886593834516481
HELSINKI — China is progressing with the development of two super heavy-lift rockets for crewed missions and infrastructure launches to the moon, according to officials.The new launchers are designed to allow China to conduct short-term lunar landings before 2030 and send large pieces of infrastructure to the moon in the 2030s respectively.Though China’s government has not formally approved a crewed lunar landing, work on the necessary elements of such a program is underway and the country’s space actors and state media are openly talking of its lunar ambitions.
