Sonic boom startle effects : report of a field study.

Thackray, Richard I.; Rylander, Ragnar; Touchstone, R. Mark

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Sonic boom startle effects : report of a field study.

1973-07-01
By Thackray, Richard I. ; Rylander, Ragnar ; Touchstone, R. Mark

File Language:

English

Details

Creators:

Thackray, Richard I. ; Rylander, Ragnar ; Touchstone, R. Mark
Corporate Creators:

Civil Aeromedical Institute
Corporate Contributors:

United States. Office of Aviation Medicine
Subject/TRT Terms:

Adaptation (Psychology) Age Females Field Experiments Field Studies Habituation (Neuropsychology) Human Subject Testing Motor Reactions Noise Noise--Physiological Effect--Testing Performance Measurement Reaction Time Reflexes Sonic Boom Sonic Tests Startle Reaction Subsonic Aircraft Supersonic Aircraft Supersonic Planes
Publication/ Report Number:

FAA-AM-73-11 ; DOT/FAA/AM-73/11
Resource Type:

Tech Report
Geographical Coverage:

Sweden
Edition:

OAM report.
Corporate Publisher:

Civil Aerospace Medical Institute
Abstract:

The study reports the results of a sonic boom field study conducted in Sweden during October 1972. Ten female subjects were tested indoors on each of six days. Two age groups were studied: 20-35 and 50-65 years. Fighter aircraft flying at various heights over the test site produced booms with outdoor overpressures ranging from 60-640 N/sq.m. The number of booms extended from 5 to 13 per day. Subjects performed indoors on an arm-hand steadiness task.

The results indicated that outdoor overpressures ranging from 70-120 N/sq.m. (26-35 N/sq.m. indoors) produced reflexive arm-hand movements in about 10 per cent of the subjects. Booms of 300 N/sq.m. (67 N/sq.m. indoors) and greater produced responses in about 75 per cent of the subjects. Between these extremes of overpressure there was the suggestion of a critical overpressure range lying between 150-180 N/sq.m. (40-46 N/sq.m. indoors) in which an abrupt increase in startle response occurred.
Format:

PDF
Collection(s):

FAA Civil Aerospace Medical Institute US Transportation Collection
Main Document Checksum:

urn:sha-512:124fb561eff41d79cd43f4cb44b21add4efc5081e06cc3bb9b1748f60dfc014dd945dd348616e5ee37a957aa64b30e12cb80554b22b133724b6a14763114f0db
Download URL:

https://rosap.ntl.bts.gov/view/dot/21028/dot_21028_DS1.pdf
File Type:

[PDF - 2.06 MB ]

File Language:

English

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