Development and Evaluation of a Prototype Life Preserver

Rueschhoff, B.J.; Higgins, E.A.; Burr, M.J.; Branson, D.M.; Civil Aeromedical Institute

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Development and Evaluation of a Prototype Life Preserver

1985-09-01
By Rueschhoff, B.J. ; Higgins, E.A. ; Burr, M.J. ; ...

[PDF-4.02 MB]

English

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Creators:

Rueschhoff, B.J. ; Higgins, E.A. ; Burr, M.J. ; Branson, D.M.

Rueschhoff, B.J. ; Higgins, E.A. ; Burr, M.J. ; Branson, D.M. Less -
Corporate Creators:

Civil Aeromedical Institute
Corporate Contributors:

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

[+]

Airplane Crash Survival Body Temperature--Measurement Crash Survival Time Design Methods Electrocardiography Experiments Heart Beat Heart Rate Human Subject Testing Hypothermia Life Preservers Life Preservers--Design Physiological Aspects Prototypes, Engineering Prototype Tests Temperature Temperature--Physiological Effect Thermal Resistance
Publication/ Report Number:

DOT/FAA/AM-85/11
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

Civil Aerospace Medical Institute
Abstract:

The purpose of this study was to develop a prototype life preserver that included provisions for:

1.increased thermal protection in the event of accidental immersion in cold water,

2.35 pounds of buoyancy,

3.a doning [sic] time of 15 s for an adult,

4.not weighing more nor requiring more storage space than currently used life preservers,

5.fitting individuals from the 5th percentile of adult females to the 95th percentile of adult males in the U.S. adult population, and

6.self-righting the wearer in 5 s.

Evaluations were made to ensure that the prototype life preserver met goals of items (2) through (6). However, the focus of the study was the assessment of thermal response characteristics. To assess the thermal response of subjects wearing the prototype life preserver and a currently used standard personal flotation device, a laboratory study with 10 subjects was conducted. Two subjects, one wearing the prototype and the other a standard vest, were immersed during each experiment in 12.8 C (55 F) water in the Civil Aeromedical Institute survival tank for 2 hours. Rectal temperature, heart rate, and EKG were measured continuously.

Eight of ten subjects, while wearing the prototype life preserver, showed a decrease in the rate of cooling when compared to the cooling rate when wearing the standard vest.
Format:

PDF
Collection(s):

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

[+]

urn:sha256:f8609916253b0ed0b2934cff6806c89782ab4e08bc77175cc8dedbcdec87bbfe
Download URL:

https://rosap.ntl.bts.gov/view/dot/21275/dot_21275_DS1.pdf
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Development and Evaluation of a Prototype Life Preserver

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