P80 (engine)
The P80 or P80 FW is a solid - rocket engine and the first stage of the rocket Vega of the European Space Agency ESA. It is one of the largest solid rocket rockets in the world made of one piece.
history
The development of the P80 began in 2005 as part of a joint project between the European Space Agency, the Center national d'études spatiales and the Agenzia Spaziale Italiana . The Italian engine and turbine manufacturer Avio became the prime contractor. At the end of 2006, the first engine tests took place in the Center Spatial Guyanais , the maiden flight on February 13, 2012.
Technical specifications
| P80 FW | |
|---|---|
| height | 11.71 m / 12.50 m with step adapter / 10.50 m motor housing with step |
| diameter | 3.00 m |
| Takeoff weight | 95,916 kg |
| Empty weight | 7,408 kg |
| Fuel weight | 88,365 kg |
| thrust | 2,100 kN average / 2,296 kN starting thrust 2,502 kN maximum at sea level / 2,980 kN maximum in vacuum |
| Burn time | 114.3 s |
| fuel | HTPB 1912 |
| Specific impulse | 2,745 m / s |
| Total impulse | 240,740 kNs |
| Combustion chamber pressure | 9,500 kPa |
| jet | Expansion ratio 16 base diameter 0.47 m nozzle diameter 1.87 m weight 2,249 kg |
Further development
A performance-enhanced version P120 is being developed for the Vega C , Vega E as well as for the boosters of the Ariane 6 .
Web links
Individual evidence
- ↑ ESA: Vega Launcher. Accessed on May 11, 2015 (English): "It is one of the largest, most powerful one-piece solid-propellant boosters ever built."
- ^ Avio : Vega Satellite Launcher. (PDF) (No longer available online.) Archived from the original on September 23, 2015 ; Retrieved November 5, 2015 .
- ↑ ESA's new Vega launcher scores success on maiden flight. Retrieved November 5, 2015 .
- ↑ ESA : Press Kit - Vega qualification flight VV01. (PDF) Retrieved November 5, 2015 .
- ^ The Vega: Europe's youngest launcher by Bernd Leitenberger , p. 30.