Investigation of the Acceleration and Jolt Histories During Escape from High Speed Aircraft

Item

Title
Investigation of the Acceleration and Jolt Histories During Escape from High Speed Aircraft
Date
1952
Index Abstract
Coming Soon
Photo Quality
Undetermined
Report Number
WADC TR 52-278
Creator
Scherberg, Max G.
Ferguson, Harry
Corporate Author
Flight Research Laboratory
Laboratory
Flight Research Laboratory
Extent
43
NTRL Accession Number
AD005010
Identifier
AD0005010
AD Number
5010
Access Rights
Unknown
Distribution Classification
1
DTIC Record Exists
Yes
Distribution Change Authority Correspondence
AFAL LTR
Distribution Change Action Date
11/24/2004
Abstract
It is shown that the maximum acceleration that a person may encounter at a given time after separation of his escape unit from a damaged, unrecoverable aircraft is dependent only on the velocity of the aircraft. Acceleration histories determined from flight tests indicate that these theoretical maximums are reasonable and practical at least in the subsonic case. Lt. Colonel J. P. Stapp of the Aero Medical Laboratory has reported (see paragraph 3) that high rate of acceleration onset during a fixed time produces injuries not found at lower onset rates. On the hypothesis that decay rates may be of comparable interest it is shown in this report that decay acceleration rates are functions of the initial acceleration and speed of the escape unit. The accelerations parallel to and normal to the spine of a person in a tumbling escape unit are calculated for an assumed hypothetical case. The effects of these alternately increasing and decreasing accelerations on the person may be described as a shaking phenomena which may be beneficial to the escaping person.
Report Availability
Not available via Contrails
Date Issued
1952-10
Index In
DTIC
Type
report