SEPR 481 rocket group
The SEPR 481 rocket group supplied the main rocket power of the SNCASO SO 9000 Trident I, supplementing two small wingtip turbojets. Three chambers could be selected separately or together for nominal thrust levels of 15, 30, or 45 kN. A gas-generator-driven turbopump supplied the chambers with nitric acid and Furaline propellants. The aircraft began rocket-powered flight testing in September 1954. The complete group is one propulsion installation; its three chambers are internal elements of that system.
Identity
- Aliases
- SEPR.481SEPR 481
- Domains
- aviation
- Identity Level
- model
- Kind
- liquid-rocket-engine
- Name
- SEPR 481 rocket group
- Status
- historical
Details
- Description
- The SEPR 481 rocket group supplied the main rocket power of the SNCASO SO 9000 Trident I, supplementing two small wingtip turbojets. Three chambers could be selected separately or together for nominal thrust levels of 15, 30, or 45 kN. A gas-generator-driven turbopump supplied the chambers with nitric acid and Furaline propellants. The aircraft began rocket-powered flight testing in September 1954. The complete group is one propulsion installation; its three chambers are internal elements of that system.
- Propellants
- nitric acidFuraline
- Rocket Specs
- Chamber Count
- 3
- Sea Level Thrust
- …
Links
Assets & Meta
- Creation Time
- October 29, 2026 at 15:49:47 UTC
- Updated Time
- October 29, 2026 at 15:52:26 UTC
Other
- Sources
- Accessed Date
- 2026-10-29
- Note
- Identifies one SEPR481 rocket group and dates the first rocket-powered flight; no chamber count inferred.
- Publisher
- Musée de l’Air et de l’Espace
- Title
- S.N.C.A.S.O. SO 9000 Trident I
- Accessed Date
- 2026-10-29
- Note
- C. Rothmund and J.-P. Parent describe three independently selectable 15kN chambers, a gas-generator-driven turbopump, and nitric-acid/Furaline propellants. Exact first-flight day differs from museum; month-only retained.
- Published Date
- 2009
- Publisher
- Snecma; International Symposium on Space Technology and Science
- Title
- Snecma Space Engines Division: Six Decades of Liquid Rocket Propulsion