Aircraft entering today’s fleets are 20
decibels (dB) quieter than comparable
aircraft 40 years ago. This corresponds
to a reduction in noise annoyance
of 75%.
• A further 50% reduction in noise during
take-off and landing (minus 10dB) is
expected by 20206
.
• Aircraft entering today’s fleets are 70%
more fuel-efficient than they were 40
years ago. Carbon monoxide emissions
have been simultaneously reduced by
50%, while unburned hydrocarb