It is designed to launch small payloads — 300 to 2,500 kg satellites for scientific and Earth observation missions to polar and low Earth orbits. Around the same time, Italy began to champion the vega 100 how to use of a new solid-propellant satellite launcher. By September 1998, it was projected that, if fully funded, Vega would perform its first launch during 2002.
However, by early 1998, France was publicly showing displeasure in the programme, leading to disputes in its funding. Around 2000, an alternative use for the Vega was explored as a medium-class booster rocket to be used in conjunction with an improved, up-rated model of the Ariane 5 heavy launcher. Italy provided 65 per cent of funding while six additional nations contributed the remainder. During October 2011, all major components of the first Vega rocket departed Avio’s Colleferro facility, near Rome, by sea for Kourou. At this point, the first launch was anticipated to occur during December 2011 or January 2012. During mid-2011, it was postulated that an evolved ‘Europeanised’ upgrade of the Vega rocket could be developed in the medium-to-long term future. Following the successful maiden launch, various improvements for the Vega were postulated. Vega rocket for more lucrative commercial operations. Since entering commercial service, Arianespace markets Vega as a launch system tailored for missions to polar and sun-synchronous orbits.
During its qualification flight, Vega placed its main payload of 386. Enrico Saggese, at that time head of the Italian Space Agency, suggested in October 2008 that the first flight of VEGA might be delayed, stating “We have to decide if we want to wait until we have another programme”, and referring to plans to have German participation to develop new third and fourth stages. 2012, until ESA publicized the launch for “end of January 2012”. The payload fairing of the Vega was designed and is manufactured by RUAG Space of Switzerland. It has a diameter of 2. 6 meters, a height of 7. 8 meters and a mass of 400 kg. The first three stages are solid propellant engines produced by Avio, that is Prime Contractor for the Vega launcher through its company ELV. The P80 is the first stage of VEGA, its name is derived from the design phase propellant weight of 80 tons that was later increased to 88 tons. Belgium by SABCA, consisting of two electromechanical actuators that operate a movable nozzle with flexible joint using lithium ion batteries. The first test firing of the P80 engine took place on 30 November 2006 in Kourou, and the test was concluded successfully.
The second test firing of the P80 first stage engine took place on 4 December 2007 in Kourou. Delivering a mean thrust of 190 tonnes over 111 seconds, the engine’s behaviour was in line with predictions. The future version of the stage, P120C, also with its name derived from the design phase propellant weight of 120 tons, will increase the propellant mass to 141-143 tons. The development of the Zefiro motor was initiated by Avio, partially funded by the company and partially funded by a contract from the Italian Space Agency. A Zefiro 23 forms the second stage of Vega. The Zefiro 23 second stage engine was first fired on 26 June 2006 at Salto di Quirra. The second test firing of the Zefiro 23 second stage engine took place on 27 March 2008 also at Salto di Quirra. This successful test qualified the rocket engine. The first engine completed was Zefiro 9, the third stage engine. The first test firing was carried out on 20 December 2005, at the Salto di Quirra Inter-force Test Range, on the Mediterranean coast in southeast Sardinia. The test was a complete success.
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After a critical design review based on the completed first test firings, the second test-firing of the Zefiro 9 took place at Salto di Quirra on 28 March 2007. After 35 seconds, there was a sudden drop in the motor’s internal pressure, leading to an increased combustion time. On 23 October 2008, an enhanced version of the Zefiro 9 with a modified nozzle design, the Zefiro 9-A, was successfully tested. On 28 April 2009, the final qualification test firing of Zefiro 9-A took place at the Salto di Quirra Interforce Test Range in Sardinia, Italy. Avio, has been designed to place the payload in the required orbit and to perform roll and attitude control functions.
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