Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

YF-75: Overview, Technical Description & Development

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…

Language: English [EN]
Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.
100%
More settings
100% 100% 100% 100% 100%

YF-75 topic overview

The analysis highlights Overview, Technical Description and Development as prominent areas in the source structure around YF-75.

Related topics
21
Source areas
3
Connected nodes
24
Extracted relationships
30
Concept neighborhoods
18
Bridge connections
24

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Overview · 14 topics
Technical Description · 4 topics
Development · 3 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

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

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Development

Technical Description

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How YF-75 connects Entity context

The extracted context around YF-75 shows recurring relationship patterns in the source. For example, YF-75 → By, By September, Given, It, Long March, RL10, The, YF-73, YF-75D Another extracted example is YF-75 → Long March 3A, Long March 3B and Long March 3C. Use these groups to spot repeated connection types before inspecting the individual relationships.

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

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

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

YF-75 relationships Subject–Predicate–Object triples

TTTA extracted 30 structured relationships around YF-75. Examples in this analysis include YF-75 → Associated LV → Long March 3A, Long March 3B and Long March 3C and YF-75 → Burn time → 470 seconds (7.8 min). The table shows each extracted connection, where it came from and its confidence.

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

Related concept clusters Concept neighborhoods

The concept neighborhoods around YF-75 bring nearby vocabulary together. In this analysis, examples include Third, Thrust and Yf-75d. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • liquid
    • Yf-75
    • Cycle
    • Oxygen
    • Development
    • First
    • H-18
    • Launch
    • Nozzle
    • References
    • Third
    • Thrust
    • Yf-75d
  • rocket engine
    • Yf-73
    • Control
    • Gimbal
    • Mount
    • 3a
    • 3c
    • Cycle
    • Stage
    • Started
    • 3b
    • Long
    • March
  • liquid hydrogen
    • Yf-75
    • Cycle
    • Oxygen
    • Development
    • First
    • H-18
    • Launch
    • Nozzle
    • References
    • Third
    • Thrust
    • Yf-75d
  • liquid oxygen
    • Yf-75
    • Cycle
    • Oxygen
    • Mixture
    • Ratio
    • Development
    • First
    • Gas
    • Generator
    • H-18
    • Launch
    • Nozzle
  • long march 3a
    • 3c
    • March
    • 3b
    • H-18
    • Launch
    • References
    • Third
    • Long
    • Stage
    • Yf-73
    • Started
    • Development
  • long march 3b
    • March
    • Long
    • 3c
    • H-18
    • Launch
    • References
    • Third
    • Stage
    • Started
    • Yf-73
    • Development
    • First
  • long march 3c
    • March
    • H-18
    • Launch
    • References
    • Third
    • Long
    • Stage
    • Yf-73
    • Started
    • Development
    • First
    • Liquid
  • yf-75d
    • Cycle
    • Development
    • First
    • H-18
    • Launch
    • Liquid
    • Nozzle
    • References
    • Third
    • Thrust
    • Yf-75
    • 3a

Connections between topic areas Semantic bridges

For YF-75, one of the stronger structural bridges in this analysis connects YF-75 with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
YF-75 — Overview · splits 10 ⟂ 15
YF-75 — Technical Description · splits 20 ⟂ 5
YF-75 — Development · splits 21 ⟂ 4

Map overview Semantic statistics

YF-75

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

Source & methodology

TTTA analyzes the structure around YF-75 to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Overview, Technical Description & Development, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — YF-75 · EN edition · Analysis: TopicsToTalkAbout

For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.