Zefiro (engine)
Zefiro is the name of a family of different solid - rocket engines by Italian engine manufacturer Avio are developed and marketed. There are currently three models of different sizes and thrust: the Zefiro 23 , the Zefiro 16 and the Zefiro 9 . In the European launch vehicle Vega , the Zefiro 23 is used in the second and the Zefiro 9 in the third stage. The Zefiro 16 has not yet been used in a launch vehicle. The Zefiro 40 is in development for the Vega C / E .
Surname
Zefiro is the Italian name of the Greek god Zephyr . Zephyr was worshiped as the god of the west wind.
Technical specifications
HTPB 1912 ( hydroxyl-terminated polybutadiene 1912) is used as fuel in all Zefiro models .
| Details | Zefiro 40 | Zefiro 23 | Zefiro 9 |
|---|---|---|---|
| Maximum thrust | 1304 kN | 1122 kN | 314 kN |
| Specific impulse | 293.5 m / s | 287.5 m / s | 295.2 m / s |
| Relaxation relationship | 37 | ||
| Combustion chamber pressure | 115 bar |
Individual evidence
- ↑ http://esamultimedia.esa.int/multimedia/vega/index_vega.html ESA page on Vega
- ↑ avio.com: Z40 MOTOR
- ↑ VEGA E: 2 ° stage - Z40 motor . Avio, accessed September 7, 2019.
- ↑ https://www.bernd-leitenberger.de/vega-ce.shtml Article about the Vega C / E missiles on bernd-leitenberger.de
- ↑ VEGA: 2 ° stage - zefiro 23 . Avio, accessed September 7, 2019.
- ↑ VEGA: 3 ° stage - zefiro 9 . Avio, accessed September 7, 2019.