Dahlen, H. and Heller, H. (1990) Comparison of the ICAO ANNEX 16 Chapter 10 and Chapter 6 Noise Certification Procedures on the Basis of Flight Noise Measurements of Ten "Light Propeller-driven Aeroplanes". DLR-Mitteilung. 90-17, 49 S.
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Noise certification procedures have been developed by the International Civil Aviation Organization ICAO for "light propeller-driven aeroplanes" (with a take-off mass not exceeding 9000 kg). The established procedure following ICAO ANNEX 16 Chapter 6 requires the aeroplane to conduct four level flyovers at a height of 300 m above a microphone with a "maximum continous power" setting.This procedure is now replaced by a new procedure documented in ANNEX 16 as Chapter 10 where the aircraft must conduct six take-offs with maximum continuous power and fly over a microphone positioned 2.5 km past the point of brake release. In both procedures, the maximum A-weighted flyover noise level is to be compared to an (aircraft-mass dependent) noise limit; both procedures have different noise limits, though. A study has been conducted where 10 propeller-driven aeroplanes were measured according to both Chapter 6 and Chapter 10 in order to evaluate the relative practicability and noise-stringency of both procedures.
|Document Type:||Monograph (DLR-Mitteilung)|
|Title:||Comparison of the ICAO ANNEX 16 Chapter 10 and Chapter 6 Noise Certification Procedures on the Basis of Flight Noise Measurements of Ten "Light Propeller-driven Aeroplanes".|
|Number of Pages:||49|
|Keywords:||Aircraft Noise, Propeller Noise, Noise Certification, Flight Noise Measuring Techniques, Ground Reflection Effects|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||other|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L TG - Querschnittstechnologien|
|DLR - Research theme (Project):||L - Turbine Technologies|
|Location:||Köln-Porz , Braunschweig , Göttingen|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||03 Apr 2006|
|Last Modified:||27 Apr 2009 10:04|
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