VEGA C: MIRA Motor -
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Lyra The program, funded by the Italian Space Agency, has allowed AVIO to study the potential evolution of the VEGA launcher to reach a 30% increase in satellite loads up to 3,000 kg in LEO of 700 km. The goal of the program was to increase the performance of the VEGA launcher by replacing the third stage and the AVUM stadium with an innovative liquid propellant LOX / CH4 system.
This new engine, called MIRA, is designed for a thrust of about 10 tons, using an expanded cycle. During the Lyra program, it was produced and tested a full-scale demonstration of this new cryogenic propulsion system.
Lyra under the program have been developed and tested innovative GNC algorithms.

The experience and the results obtained with the demonstration motor form a reliable technical basis to start development activities related to the LM10 MIRA-flight engine.

Mira motor

  • Propellants: LOX – LNG
  • Schematic: Expander cycle
  • Trust in vacuum: kN 98,1
  • Total flow rate: 27,6 kg/s
  • Mixture ratio: 3,4
  • Numbers of chambers: 1
  • Trust vector: ± 10°
  • Max diameter: < 1200 mm
  • Max Length: < 2400 mm
  • Weight: < 250 kg
  • Numbers of re-starts: 7

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