Four Stages
| First Stage | Second Stage | Third Stage | Fourth Stage | |
|---|---|---|---|---|
| Propulsion | P80 | Zefiro 23 | Zefiro 9 | AVUM |
| Height | 10.5 m | 7.5 m | 3.85 m | 1.74 m |
| Diameter | 3 m | 1.9 m | 1.9 m | 1.9 m |
| Propellant mass | 88 t | 23.9 t | 10.1 t | 0.55 t |
| Thrust (max) | 3,040 kN (683,420 lbf) | 1,200 kN (269,770 lbf) | 213 kN (47,880 lbf) | 2.45 kN (550 lbf) |
| Nozzle expansion ratio | 16 | 25 | 56 | – |
| Burn time | 109.8 s | 77.7 s | 117 s | 317 s |
| Specific impulse | 279.5 s | 289 s | 294 s | 315.2 s |
Read more about this topic: Vega (rocket)
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