Devices For Protection Against Negative Acceleration Part 1. Centrifuge Studies

Item

Title
Devices For Protection Against Negative Acceleration Part 1. Centrifuge Studies
Date
1953
Index Abstract
Coming Soon
Photo Quality
Undetermined
Report Number
WADC TR 52-87
Creator
Sieker, H. O.
Corporate Author
Aero Medical Laboratory
Extent
22
PB Number
PB142259
NTRL Accession Number
AD002135
Identifier
AD0002135
AD Number
2135
Access Rights
Unknown
Distribution Classification
1
DTIC Record Exists
Yes
Distribution Change Authority Correspondence
AFAL ltr
Distribution Change Action Date
8/8/2001
Distribution Conflict
Fix
Abstract
Human subjects were exposed to negative acceleration with and without protection. The tolerance limit for negative acceleration was established as 2.5g for unprotected subjects in the upright seated position. The acceleration was limited to this level by the subject's discomfort and the bradycardia noted in the electrocardiogram. Conjunctival hemorrahages and cardiac asystoles were noted at 3g. When the subject in the upright seated position was protected by means of counter pressure about the head and neck, the tolerance to negative acceleration was increased to 5g. The tolerance limit for negative acceleration was found to be 4g in the negative -g aspect of the USAF prone position bed.
Report Availability
Not available via Contrails
Date Issued
1953-11
Index In
U.S. Government Research Reports
Type
report