Research any topic before you write.

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

SpaceX Raptor

Raptor is a family of rocket engines developed and manufactured by SpaceX. It is the third rocket engine in history designed with a full-flow staged combustion fuel cycle, and the first such engine to power a vehicle in flight. The engine is powered by cryogenic liquid methane and liquid oxygen, a combination known as methalox.

History & Measurement

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around SpaceX Raptor. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

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

Associated LV
SpaceX Starship
Burn time
Varies
Chamber
1
Chamber pressure
330 bar (4,800 psi)
Country of origin
United States
Cycle
Full-flow staged combustion

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Design

History

Versions

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.

Map overview Semantic statistics

SpaceX Raptor

Nodes95
Edges94
Triples37
Avg. degree1.98
Density0.021053
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

SpaceX Raptor

Top relations

related to External links · 11
SpaceX Raptor → Adam Lichtl, Full-scale Simulation, GPU Technology Conference, GPUs, Mars, Raptor, SciNews, September, SpaceX Raptor Engine Test, SpaceX's Mars Rocket Engine, Steven Jones
Mass flow · 4
SpaceX Raptor → ~140 kg/s (310 lb/s), CH4, ~510 kg/s (1,100 lb/s), O2, ~510 kg/s (1,100 lb/s), O2~140 kg/s (310 lb/s), CH4, ~650 kg/s (1,400 lb/s):
Nozzle ratio · 2
SpaceX Raptor → 34.34 (sea-level),, 80 (vacuum)
Thrust · 2
SpaceX Raptor → 230 tf (2,256 kN; 507,100 lbf) (sea-level), 258 tf (2,530 kN; 568,800 lbf) (vacuum)
Associated LV · 1
SpaceX Raptor → SpaceX Starship
Burn time · 1
SpaceX Raptor → Varies
Chamber · 1
SpaceX Raptor → 1
Chamber pressure · 1
SpaceX Raptor → 330 bar (4,800 psi)
Country of origin · 1
SpaceX Raptor → United States
Cycle · 1
SpaceX Raptor → Full-flow staged combustion

Important terminology Word statistics

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

Important terminology

raptor engine engines spacex rocket test combustion starship testing oxygen thrust staged first chamber flight development stage full-flow fuel methane

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
SpaceX RaptorAssociated LVSpaceX Starship1.00infobox
SpaceX RaptorBurn timeVaries1.00infobox
SpaceX RaptorChamber11.00infobox
SpaceX RaptorChamber pressure330 bar (4,800 psi)1.00infobox
SpaceX RaptorCountry of originUnited States1.00infobox
SpaceX RaptorCycleFull-flow staged combustion1.00infobox
SpaceX RaptorDiameter1.3 m (4 ft 3 in)1.00infobox
SpaceX RaptorDry massRaptor 1: 2,080 kg (4,590 lb) Raptor 2: 1,630 kg (3,590 lb) Raptor 3: 1,525 kg (3,362 lb)1.00infobox
SpaceX RaptorLength3.1 m (10 ft)1.00infobox
SpaceX RaptorManufacturerSpaceX1.00infobox
SpaceX RaptorMass flow~650 kg/s (1,400 lb/s):1.00infobox
SpaceX RaptorMass flow~510 kg/s (1,100 lb/s), O2~140 kg/s (310 lb/s), CH41.00infobox
SpaceX RaptorMass flow~510 kg/s (1,100 lb/s), O21.00infobox
SpaceX RaptorMass flow~140 kg/s (310 lb/s), CH41.00infobox
SpaceX RaptorMixture ratio3.6 (78% O2, 22% CH4)1.00infobox
SpaceX RaptorNozzle ratio34.34 (sea-level),1.00infobox
SpaceX RaptorNozzle ratio80 (vacuum)1.00infobox
SpaceX RaptorPropellantLOX / CH41.00infobox
SpaceX RaptorPumps2 turbopumps1.00infobox
SpaceX RaptorSpecific impulse, sea-level327 s (3.21 km/s)1.00infobox
SpaceX RaptorSpecific impulse, vacuumRaptor: 350 s (3.4 km/s) Vacuum Optimized: 380 s (3.7 km/s)1.00infobox
SpaceX RaptorStatusIn production1.00infobox
SpaceX RaptorThrottle range40–100%1.00infobox
SpaceX RaptorThrust230 tf (2,256 kN; 507,100 lbf) (sea-level)1.00infobox
SpaceX RaptorThrust258 tf (2,530 kN; 568,800 lbf) (vacuum)1.00infobox
SpaceX RaptorThrust-to-weight ratioRaptor 1: 88.94 Raptor 2: 141.1 Raptor 3: 163.91.00infobox

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.