Flight Operations Noise Tests of Eight Helicopters

Abstract

This document presents acoustical data and flight path information acquired during the FAA/HAI Helicopter Flight Operations Noise Test Program. 'As-measured' noise levels of the Aerospatiale 365N, Agusta 109A, Bell 206L-1 and 222A, Hughes 500D, MBB BK117, Robinson R22, and Sikorsky S76 are presented for various enroute and heliport flight operations. The operations include level flyovers at two altitudes, normal takeoffs, normal and constant-gildeslope approaches, various types of noise abatement approaches, level flight turns and hover (IGE and OGE). The acoustical data are accompanied by radar tracking data and cockpit instrument panel information which document the operational procedures flown, and meteorological measurements to permit data corrections for nonstandard atmospheric conditions. This helicopter operational noise data base can be used in enroute and heliport land use planning, heliport environmental studies and planning guidelines, pilot familiarization and training, verification of noise prediction and estimating methods, and lateral attenuation studies. Additional keywords: heliport, flight operations, noise abatement, directivity approaches.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1985
Accession Number
ADA159835

Entities

People

  • S. A. Yoshikami

Organizations

  • Federal Aviation Administration

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Dew
  • Directed Energy Weapons
  • Flight Paths
  • Fur
  • Ground Speed
  • Helicopters
  • Human Factors Engineering
  • Instrument Panels
  • Intervals
  • Level Flight
  • Meteorological Data
  • Radar
  • Recording Systems
  • Tensile Strength
  • Video Recording
  • Wind

Readers

  • Acoustics.
  • Aerospace Engineering
  • Aerospace Test and Evaluation

Technology Areas

  • Space