... The problem of aircraft noise reduction has become an increasingly important issue: by 2020 the total number of flights is expected to double and, accordingly, each individual aircraft needs to be made at least twice as quiet in order to keep the ...
... The problem of aircraft noise reduction has become an increasingly important issue: by 2020 the total number of flights is expected to double and, accordingly, each individual aircraft needs to be made at least twice as quiet in order to keep the ...