Record Details

Record 1 of 1
A study of the effect of flight density and background noise on V/STOL acceptability. [effective perceived noise level as measure of annoyance
NTRS Full-Text: Click to View  [PDF Size: 7.4 MB]
Author and Affiliation:
Sternfeld, H., Jr.(Boeing Vertol Co., Philadelphia, PA, United States);
Hinterkeuser, E. G.(Boeing Vertol Co., Philadelphia, PA, United States);
Hackman, R. B.(Boeing Vertol Co., Philadelphia, PA, United States);
Davis, J.(Boeing Vertol Co., Philadelphia, PA, United States)
Abstract: A study was conducted in which test subjects evaluated the sounds of a helicopter, a turbofan STOL and a turbojet airplane while engaged in work and leisure activities. Exposure to a high repetitive density of the aircraft sounds did not make the individual sounds more annoying but did create an unacceptable environment. The application of a time duration term to db(A) resulted in a measure which compared favorably with EPNL as a predictor of annoyance. Temporal variations in background noise level had no significant effect on the rated annoyance.
Publication Date: Jan 01, 1974
Document ID:
19740006652
(Acquired Nov 22, 1995)
Accession Number: 74N14765
Subject Category: AIRCRAFT
Report/Patent Number: NASA-CR-2197, D210-10662-2
Coverage: Final Report
Document Type: Technical Report
Publisher Information: NASA, Washington, United States
Contract/Grant/Task Num: NAS1-11607; RTOP 504-29-11-01
Financial Sponsor: NASA; United States
Organization Source: Boeing Vertol Co.; Philadelphia, PA, United States
Description: 78p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: ACOUSTIC MEASUREMENT; ACOUSTIC PROPERTIES; AIRCRAFT NOISE; EFFECTIVE PERCEIVED NOISE LEVELS; HUMAN FACTORS ENGINEERING; PSYCHOLOGICAL EFFECTS; V/STOL AIRCRAFT
› Back to Top
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed
Find Similar Records
 
NASA Logo, External Link

NASA Official: Gerald Steeman
Sponsored By: NASA Scientific and Technical Information Program
Site Curator: STI Support Services
Last Modified: August 29, 2013

Privacy Policy & Important Notices Disclaimers, Copyright, Terms of Use Freedom of Information Act USA.gov NASA.gov NASA OCIO Free Adobe PDF Reader Free MS Word Viewer