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This Aerospace Recommended Practice (ARP) provides two methods for measuring the aircraft noise level reduction of building façades. Airports and their consultants can use either of the methods presented in this ARP to determine the eligibility of structures exposed to aircraft...
This document describes a method to calculate noise level adjustments at locations behind an airplane (described by an angular offset or directivity) at the start of takeoff roll (SOTR). This method is derived from empirical data from jet aircraft (circa 2004), most of which are...
Scope. This specification covers the requirements for headset-microphones with rigid headband. These parts meet established requirements for communications equipment used to protect against hazardous noise exposure and are approved for use in certain high and moderate ambient noise...
QUALIFIED PRODUCT LIST OF PRODUCTS QUALIFIED UNDER PERFORMANCE SPECIFICATION MIL-PRF-87819 Headset-Microphone, (Hearing Protective Type, High and Moderate Ambient Noise Levels), General Specification for This list has been prepared for use by or for the Government in the acquisition...
Headset-microphone PIN M87819/8 is a high ambient noise level headset-microphone designed for use by F-35 flight deck personnel to provide communication under the extreme noise conditions encountered in close proximity to F-35 and other fighter, transport, and tanker aircraft engines, on the flight...
This standard specifies requirements and procedures for the measurement of sound pressure levels in building spaces or rooms. These requirements and procedures apply ideally to measurements performed in unoccupied spaces, with normal building services and HVAC equipment operating under...
Provide a description of standard test methods and analysis methods for bench test measurement of the component level EPB actuation noise in order to evaluate the noise performance of the EPB actuators.
Purpose. The purpose of this Test Procedure is the development testing of the noise level generated by the engine intake system and the surface radiation, including validation. Foreword. None. Applicability. For component development. Note: Nothing in the specification, however,...
Development and validation test of the exhaust system for the complete vehicle range.
