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The YF-77 is China's first cryogenic rocket engine developed for booster applications. It burns liquid hydrogen fuel and liquid oxygen oxidizer using a gas generator cycle. A pair of these engines powers the LM-5 core stage. Each engine can independently gimbal in two planes. Although the YF-77 is ignited prior to liftoff, the LM-5's four strap-on boosters provide most of the initial thrust in an arrangement similar to the European Vulcain on the Ariane 5 or the Japanese LE-7 on the H-II.
The YF-100 is a Chinese liquid rocket engine burning LOX and kerosene in an oxidizer-rich staged combustion cycle.
The Long March 6 or Chang Zheng 6 as in pinyin, abbreviated LM 6 for export or CZ 6 within China, is a Chinese liquid-fuelled launch vehicle of the Long March family, which was developed by the China Aerospace Science and Technology Corporation (CASC) and the Shanghai Academy of Spaceflight Technology (SAST). The rocket was developed in the 2000s, and made its maiden flight in 2015. As one of the new generation rocket family, the Long March 6 was designed to be a light capacity, "high-speed response" rocket, complementing the heavy lift Long March 5 and the mid-heavy lift Long March 7 rocket families. It is capable of placing at least 1,000 kg (2,200 lb) of payload into a Sun-synchronous orbit. The first stage of the Long March 6 was derived from the booster rockets being developed for the Long March 5 rocket. It is powered by a YF-100 engine, which generates 1,340 kN (300,000 lbf) of thrust from burning kerosene and LOX as rocket fuel and oxidiser. This was the first flight of the new engine design.
The Long March 7, or Chang Zheng 7 in pinyin, abbreviated LM-7 for export or CZ-7 within China, originally Long March 2F/H or Chang Zheng 2F/H, nicknamed Bingjian, is a Chinese liquid-fuelled launch vehicle of the Long March family, developed by the China Aerospace Science and Technology Corporation (CAST). It made its inaugural flight on 25 June 2016.
Long March 9 is a Chinese super-heavy carrier rocket that is currently under development. It is the ninth iteration of the Long March rocket family, named for the Chinese Red Army's 1934–35 Long March campaign during the Chinese Civil War.
Long March 8 is an orbital launch vehicle developed by the China Academy of Launch Vehicle Technology to launch up to 5000 kg to a 700 km altitude Sun-synchronous orbit (SSO). The rocket is based on the Long March 7 with its first stage and two boosters, along with the existing liquid hydrogen burning third stage of the Long March 3A/3B/3C and 7A as its second stage. The boosters are omitted in the "core only" variant that first flew on its second launch in February 2022.
The YF-115 is a Chinese liquid rocket engine burning LOX and kerosene in an oxidizer-rich staged combustion cycle. A high efficiency/high thrust environmental-friendly rocket engine was always an objective within Programme 863. Development began in the 2000s, along with its sibling, the bigger YF-100, which would power the LM-5, LM-6 and LM-7 boosters and first stages. Testing was directed by the China National Space Administration (CNSA) commencing in 2005. Development works are mainly carried out by the Xi'an Aerospace Propulsion Institute. It will be used as upper stage engine for China's next generation of medium and light environmental-friendly launch vehicles, namely the Long March 6 and the Long March 7. During early 2012, the engine system successfully passed vacuum testing. It is China's first upper stage rocket engine to adopt the staged-combustion cycle.
The TQ-12 is a gas-generator cycle rocket engine burning liquid methane and liquid oxygen (methalox) developed by LandSpace. TQ-12 is the first Chinese liquid rocket engine developed with private funding. The engine has been designed to produce 670 kilonewtons (150,000 lbf) of thrust at sea level.
The YF-79 is a liquid cryogenic rocket engine burning liquid hydrogen and liquid oxygen in a closed expander cycle. It is China's fourth generation of upper stage cryogenic propellant engine, after the YF-73, YF-75 and the YF-75D. It can do multiple restarts thanks to an electric spark igniter and a prototype was tested at 60% and 100% thrust levels in December 2021.
The Long March 6A or Chang Zheng 6A as in pinyin, abbreviated LM 6A for export or CZ 6A within China, is a Chinese launch vehicle of the Long March family, which was developed by the China Aerospace Science and Technology Corporation (CASC) and the Shanghai Academy of Spaceflight Technology (SAST).
The TH-12 is an oxidizer-rich gas-generator cycle rocket engine burning LOX and kerosene under development by Space Pioneer. The TH-12 utilizes 3D printing and has the highest target thrust among all commercial rocket engines in China. The engine features deep throttling for reusability, re-ignition, thrust vectoring, and multi-mode starters.
Long March 10, also known as the “Next Generation crewed launch vehicle”, and previously and unofficially as the “921 rocket” or the "Long March 5G", is a Chinese super-heavy carrier rocket for crewed lunar missions that is currently under development. The nickname "921" refers to the founding date of China's human spaceflight program. In 2022, the first flight was targeted for 2027. By 2024, the first flight's target was moved up to 2025–26.In April 2024, it was announced that program development was complete.
The YF-90 is a liquid cryogenic rocket engine burning liquid hydrogen and liquid oxygen in a staged combustion cycle. It is China's first hydrogen-oxygen engine to use the staged combustion cycle and is expected to be used for the second stage of the Long March 9, which is a three-stage rocket with boosters. The engine has advanced features such as variable thrust, multiple ignitions, and automatic fault diagnosis.
The TH-11 is an oxidizer-rich staged combustion cycle rocket engine burning LOX and kerosene developed by Space Pioneer. The TH-11 engine features a reusable design, staged combustion cycle, wide usage of 3D printed components (>80%), and short development time, making it a notable achievement within the Chinese commercial space industry.
Tianlong-3 is a medium-lift orbital launch vehicle developed by the Chinese private aerospace manufacturer Space Pioneer. It is designed to be partially reusable, with the first stage capable of performing an autonomous vertical landing and being reused up to 10 times. Tianlong-3 is part of Space Pioneer's efforts to develop low-cost, reusable launch vehicles to compete in the growing commercial launch market. It aims to provide launch services for medium-sized payloads to low Earth orbit (LEO) and sun-synchronous orbit (SSO).
Jiuzhou Yunjian, also known as JZYJ, is a Chinese rocket engine design and production startup based in Beijing.
The Lingyun is a gas-generator cycle rocket engine burning liquid methane and liquid oxygen under development by Jiuzhou Yunjian.
The Longyun is a gas-generator cycle rocket engine burning liquid methane and liquid oxygen under development by Jiuzhou Yunjian.
The YF-209 is a liquid cryogenic rocket engine burning liquid methane and liquid oxygen in a gas-generator cycle. The engine is designed for reusability and commercial use and is currently under development as of May 2024.
The BF-20 is a full-flow staged combustion cycle rocket engine burning liquid methane and liquid oxygen under development by LandSpace.
References
- ↑ 李斌,陈晖,马冬英,高玉闪 (2022-01-03). "500tf级液氧煤油高压补燃发动机研制进展" (in Simplified Chinese). 《火箭推进》2022年02期. Retrieved 2022-06-09.
{{cite web}}: CS1 maint: multiple names: authors list (link) - ↑ "以重型之力，夯强国之基｜深度解码我国最大推力液体火箭发动机" (in Simplified Chinese). 西安航天动力研究所. 2022-11-06. Retrieved 2022-11-06.
- ↑ "China moves to next stage of super heavy rocket development". SpaceNews. 14 January 2021.
- ↑ Zhen, Liu (23 December 2021). "China closes in on deep space ambitions with latest rocket engine test". South China Morning Post. Retrieved 13 March 2022.
- ↑ Xin, Ling (6 November 2022). "Powerful Chinese space rocket engine passes 'milestone' test". South China Morning Post. Retrieved 23 November 2022.
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