BE-3U
Blue Origin BE-3U open-expander, vacuum-optimized liquid oxygen/liquid hydrogen variant of the BE-3 family for New Glenn upper stages. Blue Origin identifies two restartable BE-3U engines on New Glenn's upper stage and approximately 200,000 lbf (890 kN) vacuum thrust per engine; active status reflects the flown New Glenn propulsion system.
Identity
- Aliases
- BE-3UBlue Origin BE-3UBE-3 Upper Stage
- Domains
- spaceflight
- Identity Level
- variant
- Kind
- liquid-rocket-engine
- Name
- BE-3U
- Status
- active
Details
- Description
- Blue Origin BE-3U open-expander, vacuum-optimized liquid oxygen/liquid hydrogen variant of the BE-3 family for New Glenn upper stages. Blue Origin identifies two restartable BE-3U engines on New Glenn's upper stage and approximately 200,000 lbf (890 kN) vacuum thrust per engine; active status reflects the flown New Glenn propulsion system.
- Developers
- Family
- First Flight Date
- 2025-01-16
- Lineage
- Note
- Blue Origin states that BE-3U was built on BE-3PM flight heritage while using a distinct upper-stage cycle.
- Related Propulsion System
- Relationship
- technology-derived-from
- Sources
- Accessed Date
- 2026-07-29
- Publisher
- Blue Origin
- Title
- Blue Origin Engines
- Manufacturers
- Propellants
- liquid hydrogenliquid oxygen
- Rocket Specs
- Cycle
- open-expander
- Restartable
- Yes
- Vacuum Thrust Kn
- 890
Links
- Official Url
- https://www.blueorigin.com/engines/be-3u
Assets & Meta
- Creation Time
- July 29, 2026 at 08:23:41 UTC
- Updated Time
- August 14, 2026 at 19:10:44 UTC
Other
- Sources
- Accessed Date
- 2026-07-29
- Publisher
- Blue Origin
- Title
- Blue Origin Engines
- Accessed Date
- 2026-07-29
- Note
- Supports the legacy vehicle installation and the narrow canonical identity used for migration.
- Publisher
- Official vehicle or program source
- Title
- New Glenn official vehicle reference
- Accessed Date
- 2026-07-29
- Publisher
- Blue Origin
- Title
- Blue Origin's New Glenn Reaches Orbit