Viking 6
Snecma Moteurs Viking 6 is a fixed, storable-propellant nitrogen-tetroxide/UH25 liquid rocket engine used for Ariane 4 liquid strap-on boosters. ESA reports 670 kN thrust and 142 s burn time per engine; the design is similar to the Viking 4. Ariane 4 liquid-booster configurations used two or four Viking 6 engines, and this model is retired.
Identity
- Aliases
- Viking 6Viking-6Snecma Viking 6Ariane 4 Viking 6
- Domains
- spaceflight
- Identity Level
- model
- Kind
- liquid-rocket-engine
- Name
- Viking 6
- Status
- retired
Details
- Description
- Snecma Moteurs Viking 6 is a fixed, storable-propellant nitrogen-tetroxide/UH25 liquid rocket engine used for Ariane 4 liquid strap-on boosters. ESA reports 670 kN thrust and 142 s burn time per engine; the design is similar to the Viking 4. Ariane 4 liquid-booster configurations used two or four Viking 6 engines, and this model is retired.
- First Flight Date
- 1988-06-15
- Propellants
- nitrogen tetroxideUH25
- Rocket Specs
- Burn Time S
- 142
- Sea Level Thrust Kn
- 670
Links
Assets & Meta
- Creation Time
- August 1, 2026 at 08:40:50 UTC
- Updated Time
- August 22, 2026 at 08:01:08 UTC
Other
- Sources
- Accessed Date
- 2026-08-01
- Note
- ESA identifies the Ariane 4 liquid strap-ons as two or four boosters, each powered by a single fixed Viking 6, with NTO/UH25 propellants.
- Publisher
- European Space Agency
- Title
- Achievements: Ariane 4 principal characteristics
- Accessed Date
- 2026-08-01
- Note
- ArianeGroup distinguishes the Ariane 4 liquid-booster L configurations from solid-booster P configurations.
- Publisher
- ArianeGroup
- Title
- Ariane 4, a real success story for technology and industry
- Accessed Date
- 2026-08-15
- Note
- ESA records Ariane 4 V22's first flight on 15 June 1988; V22 was the 44LP configuration using Viking 6 liquid strap-on boosters.
- Publisher
- European Space Agency
- Title
- First Ariane 4 launch