Rocket engine

Raptor

Rockets

Overview

SpaceX's methane/LOX full-flow staged-combustion engine for Starship and its Super Heavy booster — one of very few full-flow engines ever flown, designed for rapid reuse. Thrust has risen across versions.

Components & hardware

Propellants

Methane / LOX

Powers

Starship

Knowledge connections

PowersStarship
Built bySpaceX
Uses propellantMethane / LOX
Associated withStaged-Combustion Cycle

Sources

Facts on this topic will be cited from these primary and reference sources.

SpaceXSpace Exploration Technologies Corp.
Falcon 9, Falcon Heavy, Starship, and the Merlin/Raptor engines — manufacturer specifications and launch data.

Quick facts

Type: Rocket engine
Cycle: Full-flow staged combustion
Propellant: Methane / LOX
Manufacturer: SpaceX

Unknown specifications are left blank rather than estimated.

Provenance & sources

review 2026.1

Asteria Scientific Review Process · verification: sourced · accurate

High evidenceconfirmed
Raptor is SpaceX's methane/LOX full-flow staged-combustion engine for Starship and the Super Heavy booster — one of very few full-flow engines flown — designed for high chamber pressure and rapid reuse.
Source: SpaceX

Reviewed by the internal Asteria Scientific Review Process — not an external institutional review. See the evidence framework and authority dashboard.

Quality & authority

56%

Reviewed

Completeness: Complete
Source coverage: Partial
Citation coverage: Complete
Relationship coverage: Complete
Review coverage: Complete
Image coverage: None

Curated from authoritative public sources. See source quality.

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