Space Medicine In Project Mercury (Illustrated & Annotated) (NASA History Series Book 4003) by Link Mae Mills

Author:Link, Mae Mills [Link, Mae Mills]
Language: eng
Format: mobi
Publisher: Cia Publishing
Published: 2013-02-15T05:00:00+00:00

In the various research projects preceding Project Mercury, considerable attention had been given to the problems of acceleration and reentry forces of manned space flight. Indeed, these may be said to have been the last remaining major obstacles to manned space flight.

Both the German Air Force prior to World War II and the U.S. Army Air Forces had considered various techniques such as traveling in a prone position.4 As early as 1932, 11. von Diringshofen pointed out that man's "g" tolerance would be markedly enhanced if the force were directed perpendicular to the axis of the large (great) blood vessels, as in the prone or supine position. In 1936, L. Buhrlen, from considerations based upon centrifuge experiments on supine human subjects, recommended the use of a seat which at 4 to 5 g automatically tilted backward to the horizontal. H. Wiesebofer in 1939, presumably motivated by these earlier suggestions of a tilting seat, actually flight tested a g-actuated tilting seat in a Heinkel-50 two-seated airplane, in which five passengers withstood 7g for 15 seconds without visual symptoms. In this installation, however, no flight tests were made in which the pilot utilized the tilting seat. In the Compendium of Aviation Medicine. S. Ruff and H. Strughold (1939) alluded to the work of Wiesehofer and similar observations, declaring that the g-actuated tilting seat had been shown to be "entirely practical."

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