engleski

Helicopter Noise And Noise Abatement Procedures

The helicopter generated noise at and around the airports is lower than noise generated by aeroplanes, since their number of operations, i.e. number of takeoffs and landings is much lower than the takeoffs and landings of aeroplanes. Out of some hundred operations a day, helicopters participate with approximately 15%, but the very impact of noise is by no means negligible, since the number of helicopter flights above urban areas is constantly increasing. This paper attempts to analyse this phenomenon and the type of helicopter generated noise, its negative impacts, to explain the flight procedures and the operative procedures during takeoff, landing and overflight of helicopters in operations in the vicinity and outside airports, as well as the methods of measuring and determining the limit of noise level, and the resulting problems.

noise sources; helicopter; noise abatement procedures

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