VEGA: 4° stage - AVUM - Avio.com
2421
page-template,page-template-full_width,page-template-full_width-php,page,page-id-2421,page-child,parent-pageid-2647,eltd-cpt-1.0,,avio theme-child-ver-1.0,moose-ver-1.7, vertical_menu_with_scroll,smooth_scroll,blog_installed,wpb-js-composer js-comp-ver-5.0.1,vc_responsive
 

VEGA: 4° stage – AVUM

UPPER STAGE FOR ORBITAL POSITIONING AND ATTITUDE CONTROL

The AVUM stage consists of two different sections – one that hosts the propulsion system (APM: AVUM Propulsion Module), and the other which is devoted to the platform that houses the avionics (AAM: Avum Avionics Module). The APM provides attitude and thrust control functions for
the Vega Launcher during the final stages of flight, in accordance with mission requirements.
The current standard configuration includes a liquid bi-propellant system for primary maneuvers which uses nitrogen tetroxide (NTO) as the oxidant and unsymmetrical dimethylhydrazine (UDMH) as the fuel – both propelled by pressurized helium gas – and a cold gaseous nitrogen system (GN2) for attitude control.
Total propellant load ranges from 476.2 to 572.2 Kg, depending on mission.
The AMM avionics module hosts the main components of the avionic subsystem of the launch vehicle.

MAIN Characteristic

  • Diameter: 2 m
  • Propellant mass: 572 Kg
  • Mass of Inerts:  538.6 kg
  • Motor mass: 16 kg
  • Average thrust: 2,42 kN
  • Specific impulse: 314,6 s
  • Combustion time: 723 s

By using this website, you agree to accept our cookie policy. find out more

Questo sito utilizza i cookie per fornire la migliore esperienza di navigazione possibile. Continuando a utilizzare questo sito senza modificare le impostazioni dei cookie o cliccando su "Accetta" permetti il loro utilizzo.

Chiudi