Noise abatement technology options for conventional turboprop airplanes. Final report
The practical application of noise control technology to new and derivative conventional turboprop airplanes likely to come into service in the 1980's has been analyzed with a view to determining noise control cost/benefits. The analysis identifies feasible noise control methods, applies them to four study airplanes, and presents the noise reductions in terms of the equivalent perceived noise level at takeoff, sideline and approach locations, and the effect on the area within selected EPNL contours. Noise reductions of up to 8.3 dB for takeoff and 10.7 dB for approach are calculated for the study airplanes but, for most cases, the changes are less than 5 dB. Weight and cost increases associated with the noise control treatments are determined under the assumption there they are no changes to airplane performance or fuel consumption.
- Research Organization:
- Bolt, Beranek and Newman, Inc., Canoga Park, CA (USA)
- OSTI ID:
- 5894366
- Report Number(s):
- AD-A-101828/2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Proposed regulations submitted by the Environmental Protection Agency to the FAA: moise abatement minimum altitudes for turbojet-powered airplanes in terminal areas; turbojet-powered airplanes. Decision not to prescribe requlations: delayed landing flap procedure
Study of cost/benefit tradeoffs for reducing the energy consumption of the commercial air transportation system. [Advanced turboprop introduction]
Related Subjects
AIRCRAFT
NOISE POLLUTION ABATEMENT
AIRPORTS
CONTROL
COST
FORECASTING
FUEL CONSUMPTION
PERFORMANCE
PUBLIC RELATIONS
TURBOJET ENGINES
ENERGY CONSUMPTION
ENGINES
POLLUTION ABATEMENT
320202* - Energy Conservation
Consumption
& Utilization- Transportation- Railway