Performance of selected tasks was evaluated experimentally during rotation at 3, 4, or 5 rpm. Test subjects were suspended in the artificial g vector while climbing ladders radially, and walking tangentially. The walking cargo-handling experiments were performed at radii of 20, 40, 60, and 70 ft, at g levels between 0.06 arid 0.58. Radial transfer was also evaluated in an elevator between radii of 10 and 65 ft. The experimental conditions did not prove unduly stressful to the test subjects, and it is concluded that selection and indoctrination will enable the majority of men to comfortably live and perform in an artificial g environment. Restraints may be required on elevators in space to counteract lateral coriolis forces in the presence of diminishing artificial g forces. Ladder climbing was, subjectively, an acceptable mode of radial transfer. Tangential locomotion and cargo transport were reported to be better when walking in the pro-spin direction as compared to the antispin direction, due in part to the "flat floor 9 ' configuration. It was concluded that crew orientation did not seriously affect crew performance at radii of 40 ft or more. However, all performance was seriously degraded at a radius of 20 ft. Cargo handling was affected somewhat by the radial location, but more significantly, by the rotational rate.
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