Results 151 to 160 of about 111,602 (208)

STOL Aircraft Noise Certification-A Rational Approach

SAE Technical Paper Series, 1970
<div class="htmlview paragraph">Government and industry representatives are currently at work formulating a rule for certifying the noise levels of short takeoff and landing (STOL) aircraft. Conventional aircraft are primarily turbofan propelled and fly over well-defined landing or takeoff paths at conventional airports. In contrast to this, STOL
Frederick B. Metzger, William M. Foley
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Helicopter noise certification

Applied Acoustics, 1988
Abstract The object of noise certification is to reduce aircraft noise at source by incorporating internationally agreed limits into national civil airworthiness requirements. The operation of aircraft which fail to comply with these limits during type tests is prohibited, providing manufacturers with a powerful incentive to design quieter machines ...
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Aircraft Noise Certification Procedures in Retrospect; 1969-1976

SAE Technical Paper Series, 1976
<div class="htmlview paragraph">Procedures for measurement and evaluation of aircraft noise are contained in FAR Part 36 which was formulated in the late sixties. Over six years experience with this regulation has resulted in more than 5000 noise certification actions on the Boeing family of commercial jet transports.
V. E. Callaway, N.A. Peart
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Noise Certification of Business Jet Aircraft

SAE Technical Paper Series, 1971
<div class="htmlview paragraph">Noise certification under FAR Part 36 is now a requirement for issuance of all new and supplemental type certificates for turbojet-powered or transport-category aircraft. Recent experience with three noise certification programs has shown: how to estimate from aircraft performance data the necessity and extent of ...
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Optimal Dual Certificates for Noise Robustness Bounds in Compressive Sensing

Journal of Mathematical Imaging and Vision, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nicodème, Marc, Turcu, Flavius, Dossal, Charles   +2 more
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Predicted airframe noise levels for certification flights

Journal of Aircraft, 1981
A correction is presented for a previously published inconsistency in predicted airframe noise values, which were based on approach velocities lower than those required for FAA certification. New figures are given for the following aircraft: DC-9-30, 727-200, A300-B2, L-1011, DC-10-10, and 747-200B.
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Aircraft Noise Certification Requirements Which Ensure Use of Available Noise Control Technology

Noise Control Engineering, 1976
The results of compliance demonstration test programs for new wide-bodied aircraft powered by high-bypass-ratio engines showed that in some cases the aircraft noise levels were well below those of the requirements. This prompted a number of investigations, both in the US and internationally, to determine the feasibility of modifying the noise ...
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AC 36-1A: Certificated Airplane Noise Levels

1975
This circular provides noise level data for airplanes certificated under FAR Part 36 since its publication on November 18, 1969.
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Alternative noise certification concepts for air carrier aircraft

The Journal of the Acoustical Society of America, 1980
This paper examines a number of general and specific concepts in noise certification. These include current takeoff and landing flight procedure requirements, and the potential role of static engine noise testing for noise certification. Effectiveness of existing noise certification concepts are briefly reviewed and alternative methods considered which
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