AVUM+
AVUM+ (Attitude Vernier Upper Module Plus) is the reignitable liquid-propellant upper stage of Vega-C. Avio lists 740 kg of propellant, 590 kg of inert mass, a 1.5 m module diameter, 2.42 kN average main-motor thrust, 314.6 s specific impulse, and 940 s combustion time; ESA describes its multiple restarts for precise orbital positioning, multi-payload deployment, and end-of-mission deorbiting. This integrated propulsion record describes AVUM+ itself, not Vega-C as a vehicle.
Identity
- Aliases
- AVUM+AVUM PlusAttitude Vernier Upper Module PlusVega-C AVUM+
- Domains
- spaceflight
- Identity Level
- integrated-system
- Kind
- integrated-propulsion-system
- Name
- AVUM+
- Status
- active
Details
- Description
- AVUM+ (Attitude Vernier Upper Module Plus) is the reignitable liquid-propellant upper stage of Vega-C. Avio lists 740 kg of propellant, 590 kg of inert mass, a 1.5 m module diameter, 2.42 kN average main-motor thrust, 314.6 s specific impulse, and 940 s combustion time; ESA describes its multiple restarts for precise orbital positioning, multi-payload deployment, and end-of-mission deorbiting. This integrated propulsion record describes AVUM+ itself, not Vega-C as a vehicle.
- Developers
- Manufacturers
- Rocket Specs
- Burn Time S
- 940
- Restartable
- Yes
- Vacuum Specific Impulse S
- 314.6
- Vacuum Thrust Kn
- 2.42
Links
- Official Url
- https://www.avio.com/avum-plus
Assets & Meta
- Creation Time
- July 29, 2026 at 08:21:00 UTC
- Updated Time
- August 22, 2026 at 15:25:51 UTC
- Image
- Download
Other
- Sources
- Accessed Date
- 2026-08-21
- Note
- Avio's AVUM+ product page lists the module's 1.5 m diameter, 740 kg propellant mass, 590 kg inert mass, 2.42 kN average main-motor thrust, 314.6 s specific impulse, and 940 s combustion time; the normalized propulsion fields retain the thrust, specific impulse, and combustion duration.
- Publisher
- Avio
- Title
- AVUM+ Engine Main Characteristics
- Accessed Date
- 2026-08-21
- Note
- ESA identifies AVUM+ as Vega-C's reignitable liquid-propellant upper stage, describes its 740 kg propellant load and 2.42 kN average thrust, and states that Avio is Vega-C's prime contractor and design authority; this supports the AVUM+ relationship without treating the propulsion system as the vehicle itself.
- Publisher
- European Space Agency
- Title
- Vega-C