page_title: YF-100
hierarchical_section_title: YF-100
caption_attribution_description: YF-100K high thrust post-pump gimbal liquid oxygen kerosene engine
context_page_description: The YF-100 is a Chinese liquid rocket engine burning LOX and kerosene in an oxidizer-rich staged combustion cycle.
  Development of the engine began in the 2000s, along with its sibling, the smaller YF-115, which would power the LM-6 and LM-7 upper stages. Testing was directed by the China National Space Administration commencing in 2005. Development works are mainly carried out by the Xi'an Aerospace Propulsion Institute. The engine had its first 300 seconds test fire on November 2007.
  A high efficiency/high thrust environmentally-friendly rocket engine was always an objective within Programme 863 in the 1980s; however, Chinese industry was not mature enough at that time to produce such a rocket until they obtained RD-120 in the early 1990 from Russia following the collapse of the USSR.
  It is the first Chinese rocket engine to adopt the staged-combustion cycle and the most powerful to date. During July 2012 the engine fired for 200 seconds generating 120 t of thrust. On May 28, 2012, the National Defense Science and Industry Bureau certified the engine.
context_section_description: The YF-100 is a Chinese liquid rocket engine burning LOX and kerosene in an oxidizer-rich staged combustion cycle.
  Development of the engine began in the 2000s, along with its sibling, the smaller YF-115, which would power the LM-6 and LM-7 upper 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. The engine had its first 300 seconds test fire on November 2007.
  A high efficiency/high thrust environmentally-friendly rocket engine was always an objective within Programme 863 in the 1980s; however, Chinese industry was not mature enough at that time to produce such a rocket until they obtained RD-120 in the early 1990 from Russia following the collapse of the USSR.
  It is the first Chinese rocket engine to adopt the staged-combustion cycle and the most powerful to date. During July 2012 the engine fired for 200 seconds generating 120 t (260,000 lb) of thrust. On May 28, 2012, the National Defense Science and Industry Bureau certified the engine.
  The engine is designed for use on the first stage of the Chinese government's next generation of launch vehicles, the Long March 5, the Long March 6 and the Long March 7. The engine's maiden flight, on the Long March 6, took place on September 20, 2015.
caption: YF-100K display at Airshow China 2018
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