On a humid day in June, with a temperature similar to that at Europe’s Spaceport in French Guiana, the engine of a miniature Vega launcher was ignited at Colleferro, a small town in the middle of Italy. The reason: to test the noise level.
Read more at:
http://www.esa.int/SPECIALS/Launchers_Home/SEM26SL26WD_0.html