RS-3
RS-3 is the developing three-tonne-thrust-class upper-stage engine for Argentina's Tronador II. CONAE describes a regenerative chamber with 36 swirl injectors and a turbopump under development. The engine is also intended for preliminary use on the TII-70 technology demonstrator. A July 2025 government report describes MT-B propulsor hot-fire work at the Centro Espacial Teófilo Tabanera in the RS-3 development campaign, evaluating sustained operation and regenerative-chamber thermal behaviour. The report identifies VENG and CONAE as joint developers; this is development testing rather than a flight qualification claim.
Identity
- Aliases
- Tronador RS-3
- Domains
- spaceflight
- Identity Level
- model
- Kind
- liquid-rocket-engine
- Name
- RS-3
- Status
- development
Details
- Description
- RS-3 is the developing three-tonne-thrust-class upper-stage engine for Argentina's Tronador II. CONAE describes a regenerative chamber with 36 swirl injectors and a turbopump under development. The engine is also intended for preliminary use on the TII-70 technology demonstrator. A July 2025 government report describes MT-B propulsor hot-fire work at the Centro Espacial Teófilo Tabanera in the RS-3 development campaign, evaluating sustained operation and regenerative-chamber thermal behaviour. The report identifies VENG and CONAE as joint developers; this is development testing rather than a flight qualification claim.
Links
Assets & Meta
- Creation Time
- October 29, 2026 at 15:46:05 UTC
- Updated Time
- October 29, 2026 at 15:59:18 UTC
Other
- Sources
- Accessed Date
- 2026-10-29
- Published Date
- 2024-02-27
- Publisher
- CONAE / Argentina.gob.ar
- Title
- Tronador II propulsion manufacturing milestone
- Accessed Date
- 2026-10-29
- Note
- The article distinguishes the MT-B propulsor firing from the wider RS-3 development effort.
- Published Date
- 2025-07-24
- Publisher
- Secretaría de Innovación, Ciencia y Tecnología / Argentina.gob.ar
- Title
- RS-3 development campaign: MT-B hot-fire at CETT