ESA’s Vega launch vehicle successfully tested its second stage motor, the Zefiro 23, at the Italian Ministry of Defence test centre in Salto di Quirra, Sardinia, on 26 June. EuroNews was there to witness the event.
The 7.5m tall, 2m diameter motor, featuring a carbon epoxy filament wound casing, delivered more than 100 metric tons of thrust (1,070 kN), burning some 24 metric tons of solid propellant in 75 seconds.
Numerous data were gathered during the test and are now under analysis to improve technical knowledge of the motor’s behaviour and refine the launcher’s future performance. Also tested during the firing were various subsystems, including a thrust vector control system that will steer the motor’s nozzle to provide flight control. After this success, the motor will proceed with its critical design review, at which stage its technical characteristics will be finalised.
