YF-215

{{Short description|Chinese liquid-fuel rocket engine}}

{{Infobox rocket engine

|name = YF-215

|image =

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|country_of_origin= China

|date =

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|designer = Academy of Aerospace Liquid Propulsion Technology

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|purpose =

|associated = Long March 9

|predecessor =

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|status = In development

|type = liquid

|oxidizer = LOX

|fuel = liquid methane

|mixture_ratio =

|cycle = Full-flow staged combustion

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|combustion_chamber= 1

|nozzle_ratio =

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|thrust(Vac) =

|thrust(SL) = {{convert|2,000|kN}}

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}}

The YF-215 is a liquid cryogenic rocket engine burning liquid methane and liquid oxygen in a full-flow staged combustion cycle. The engine is currently under development and is designed to power the super-heavy launch vehicle Long March 9.