Accession Number : ADA260072


Title :   Tiltrotor Aircraft Noise - A Summary of the Presentations and Discussions at the 1991 FAA/Georgia Tech Workshop


Descriptive Note : Final rept.


Corporate Author : SYSTEMS CONTROL TECHNOLOGY INC ARLINGTON VA


Personal Author(s) : Ahuja, K K


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a260072.pdf


Report Date : Jan 1992


Pagination or Media Count : 55


Abstract : Georgia Institute of Technology hosted a workshop in Atlanta on 28 and 29 March 1991 on the noise problems associated with tiltrotors. The workshop had two major objectives: (1) to review the status of research and development in predicting and reducing tiltrotor noise; and, (2) to identify key technical and operational issues and methods to address them. The second objective had both near term and far term implications. In the near term, the goal is to arrive at a level of technical credibility that can support decisions to develop urban and inner city markets. I The long term goal is to target resources and actions which will lead to tiltrotor noise abatement and effective control. The opening session of this workshop consisted of an overview and a discussion of the physics of tiltrotor noise mechanisms. A review of the available experimental data followed. A discourse on potential flight operational procedures to minimize noise impacts, and a general presentation of industry and government perspectives concluded the workshop. Subsequent sessions were available ford participants to present observations on and experiences with the XV-15 and V-22. Operational experiences included flight tests, wind tunnel tests, and other simulations. Experiences with computational fluid dynamics codes, small-scale model testing, and other related research were shared. This document provides a summary of the presentations and discussions that took place during the workshop.


Descriptors :   *AIRCRAFT NOISE , *TILT ROTOR AIRCRAFT , TEST AND EVALUATION , SIMULATION , EXPERIMENTAL DATA , SCALE MODELS , MODELS , LITERATURE SURVEYS , COMPUTATIONAL FLUID DYNAMICS , PHYSICS , FLIGHT , WIND TUNNEL TESTS , HYDRODYNAMIC CODES , WORKSHOPS , URBAN AREAS


Subject Categories : Helicopters
      Noise Pollution and Control


Distribution Statement : APPROVED FOR PUBLIC RELEASE