Viking 4
Storable-propellant Viking engine model used as the single second-stage engine on Ariane 4.
Identity
- Domains
- spaceflight
- Identity Level
- model
- Kind
- liquid-rocket-engine
- Name
- Viking 4
- Status
- retired
Details
- Description
- Storable-propellant Viking engine model used as the single second-stage engine on Ariane 4.
- Propellants
- nitrogen tetroxideUH25
Links
Assets & Meta
- Creation Time
- August 1, 2026 at 08:31:02 UTC
- Updated Time
- August 1, 2026 at 08:31:02 UTC
Other
- Sources
- Accessed Date
- 2026-08-01
- Note
- ESA identifies a single Viking 4 engine on Ariane 4 stage 2 and documents the NTO/UH25 propellant combination.
- Publisher
- European Space Agency
- Title
- Achievements: Ariane 4 principal characteristics
- Accessed Date
- 2026-08-01
- Note
- ArianeGroup distinguishes Ariane 4's six configurations and the 40 baseline without strap-on boosters.
- Publisher
- ArianeGroup
- Title
- Ariane 4, a real success story for technology and industry