Traduction de «Avion ayant une certification acoustique » (Français → Anglais) :

6. WELCOMES, the recommendation of CAEP for a new noise certification standard and for procedures for re-certification of existing aircraft to this standard as an important first step.

7. RECOGNISES, that studies conducted by CAEP showed significant regional differences in the problems caused by aircraft noise and notes that the new noise certification standard on its own would not be sufficient to solve these problems in regions such as Europe.

(5) Whereas older types of aeroplanes modified to improve their noise certification level have a noise performance which is significantly worse, mass for mass, than that of modern types of aeroplanes originally certificated to meet the standards of Volume I, Part II, Chapter 3 of Annex 16 to the Convention on International Civil Aviation, third edition (July 1993); whereas such modifications prolong the life of an aeroplane that would normally have been retired; whereas such modifications tend to worsen the gaseous emissions perform ...[+++]ance and fuel burn of earlier technology aero engines; whereas aeroplanes may be re-engined to achieve a noise performance comparable to that of those originally certificated to meet Chapter 3 requirements;

In the areas of ongoing work Community competence focuses on the development of a new, more stringent, noise standard, of a framework for transitional rules for phasing out the noisiest Chapter 3 aircraft, the identification of the potential for reducing a range of gaseous emissions, and the development of guidance on the introduction of market based measures including aviation fuel taxes or measures with similar effects aimed at reducing emissions from international aviation.

(2) "recertificated civil subsonic jet aeroplane" shall mean a civil subsonic jet aeroplane initially certificated to Chapter 2 or equivalent standards, or initially not noise-certificated which has been modified to meet Chapter 3 standards either directly through technical measures or indirectly through operational restrictions; civil subsonic jet aeroplanes which initially could only be dual-certificated to the standards of Chapter 3 by means of weight restrictions, have to be considered as recertificated aeroplanes; civil subsonic jet aeroplanes which have been modified to meet Chapter 3 standards by being completely re-enginged with engines ...[+++]having a by-pass ratio of three or more are not to be considered as recertificated aeroplanes;

/ * * * "The Community has long recognised the need to improve the acoustical environment around airports and it has taken action to reduce the noise from civil subsonic aircraft through a first directive on aircraft noise in 1980 and a later amendment in 1983. - 3 - "As from 1 January 1988 non noise-certificated aircraft - that is the very noisy ones - will have been ba ...[+++]nished from the Community, and that form of environmental disturbance will disappear".