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YF-75

The YF-75 is a liquid cryogenic rocket engine burning liquid hydrogen and liquid oxygen in a gas generator cycle. It is China's second generation of cryogenic propellant engine, after the YF-73, which it replaced. It is used in a dual engine mount in the H-18 third stage of the Long March 3A, Long March 3B and Long March 3C launch vehicles. Within the…

Overview, Technical Description & Development

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Associated LV
Long March 3A, Long March 3B and Long March 3C
Burn time
470 seconds (7.8 min)
Chamber
1
Chamber pressure
3.76 MPa (37.6 bar)
Country of origin
China
Cycle
Gas-generator

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Overview

Development

Technical Description

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Map overview Semantic statistics

YF-75

Nodes25
Edges24
Triples30
Avg. degree1.92
Density0.08
Components1

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YF-75

Top relations

related to Development · 9
YF-75 → By, By September, Given, It, Long March, RL10, The, YF-73, YF-75D
Associated LV · 1
YF-75 → Long March 3A, Long March 3B and Long March 3C
Burn time · 1
YF-75 → 470 seconds (7.8 min)
Chamber · 1
YF-75 → 1
Chamber pressure · 1
YF-75 → 3.76 MPa (37.6 bar)
Country of origin · 1
YF-75 → China
Cycle · 1
YF-75 → Gas-generator
Designer · 1
YF-75 → Beijing Aerospace Propulsion Institute
Diameter · 1
YF-75 → 1.5 metres (4 ft 11 in)
Dry mass · 1
YF-75 → 550 kilograms (1,210 lb)

Important terminology Word statistics

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Important terminology

engine hydrogen propellant long march yf-73 3b cryogenic oxygen stage gas generator 3a 3c chamber cycle mixture ratio dual mount

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
YF-75Associated LVLong March 3A, Long March 3B and Long March 3C1.00infobox
YF-75Burn time470 seconds (7.8 min)1.00infobox
YF-75Chamber11.00infobox
YF-75Chamber pressure3.76 MPa (37.6 bar)1.00infobox
YF-75Country of originChina1.00infobox
YF-75CycleGas-generator1.00infobox
YF-75DesignerBeijing Aerospace Propulsion Institute1.00infobox
YF-75Diameter1.5 metres (4 ft 11 in)1.00infobox
YF-75Dry mass550 kilograms (1,210 lb)1.00infobox
YF-75First flight1994-02-081.00infobox
YF-75Length2.8 metres (9 ft 2 in)1.00infobox
YF-75ManufacturerChina Academy of Launch Vehicle Technology (CALT)1.00infobox
YF-75Mixture ratio5.1 (adjustable)1.00infobox
YF-75Nozzle ratio801.00infobox
YF-75PredecessorYF-731.00infobox
YF-75PropellantLiquid oxygen / Liquid hydrogen1.00infobox
YF-75Specific impulse, vacuum438 seconds (4.30 km/s)1.00infobox
YF-75StatusIn service1.00infobox
YF-75SuccessorYF-75D1.00infobox
YF-75Thrust, vacuum78.45 kilonewtons (17,640 lbf)1.00infobox
YF-75is aliquid cryogenic rocket engine burning liquid hydrogen and liquid oxygen in a gas generator cycle0.90text

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