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Zefiro 9-A motor successfully completed its first firing test at the Salto di Quirra Inter-force Test Range in Sardinia (Italy). This was the penultimate firing test for the engine prior to the Vega launcher’s qualification flight, scheduled to take place by the end of 2009.
The Zefiro 9-A (Z9-A) solid-fuel rocket motor, which will power the Vega launch vehicle’s third stage, left the production facility of Avio, in Colleferro (Italy), at the end of September and was installed at the test site over the last three weeks.

After a nominal 120-second burn time, during which a maximum combustion pressure of 75 bar was reached, the roar of the motor stopped as expected. The first results confirm the expected performance increase for this enhanced version of the motor, as well as the robustness of the modifications introduced in the nozzle design.