NTRS - NASA Technical Reports Server

Back to Results
A Technique for Simulating Conditions of Walking and Performing Other Self-Locomotive Activities on the Lunar TerrainOne of the most important and probably the most interesting phase of a manned lunar mission will be the time the astronauts spend outside their vehicle on the moon's surface taking scientific measurements, exploring the surface features, surveying possible sites for a lunar base, inspecting their vehicle and preparing it for their return trip. Because the lunar gravity is only one-sixth that of the earth gravity, the explorers undoubtedly will have to adjust their accustomed methods of walking, climbing, jumping and performing other self-locomotive activities in order to carry out these various tasks. In as much as the over-all success of the lunar mission will depend to a large extent upon the self-reliance of the explorers, it will be necessary to have extensive knowledge of the effects of the moon's reduced gravity on the physical capabilities of man and of man's ability to adopt to the new environment prior to the planning and execution of the mission. At the present time there is a dearth of information on this subject due primarily to the lack of a practical technique for simulating the reduced gravity. Several techniques such as immersion in water and riding in an airplane flying a Keplerian trajectory have been used for zero-g or weightlessness studies to determine the physical capabilities of man but these techniques are limited in their usefulness either by restrictions imposed by the viscous effect of the water or by the short duration and small test area available in an airplane. Consequently, an effort was made at the NASA Langley Research Center to devise a new technique that would provide a realistic simlation of a reduced gravity for unlimited periods of time and allow freedom of movement over considerable distances. This paper concerns itself with a discussion of the newly developed simulation technique and a presentation of some preliminary results which were obtained utilizing a working model based on this scheme.
Document ID
Document Type
Technical Memorandum (TM)
Hewes, Donald E.
(NASA Langley Research Center Hampton, VA, United States)
Spady, Amos A., Jr.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 2, 2013
Publication Date
January 1, 1963
Subject Category
Man/System Technology And Life Support
Report/Patent Number
Distribution Limits
Work of the US Gov. Public Use Permitted.

Available Downloads

NameType 19650076500.pdf STI