Very large aircraft do not necessarily have to impose high noise levels on the environment, a fact that has been demonstrated by the Airbus A380's appearance at international air shows and during its world tours. Now, Airbus is claiming its A380 as the quietest long-range aircraft in service. The aircraft, with Engine Alliance GP7200 powerplants, has received external noise levels validation from the European Aviation Safety Agency (EASA) and the U.S. FAA. External noise certification was part of the process for the joint EASA and FAA type certification for the GP7200.rnThe noise levels certified on the GP7200-powered A380 are equivalent to those already approved on the Rolls-Royce Trent 900-powered A380, according to the company. The levels are 17 EPNdB (effective perceived noise in decibels) cumulative margin to the ICAO Chapter 4 noise standard, which is more stringent and voluntarily used by Airbus instead of the mandatory Chapter 3 stan-rndard.
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