AN INTRODUCTION TO SURFACE-FREE BEHAVIOUR

Abstract

The motions of the weightless Free-floating worker are discussed. Study techniques include physical analyses of the motions, inflight validation of the analyses, and mathematical projections of probable orbital motions. Sensations arising from these motions are also discussed. The motion freedom of the unencumbered surface-free subject revealed many motion restraint and augmentation requirements and such devices as lifelines, adhesive footgear and self-manoeuvring units are required to limit and control his motions. The effects of transient weightlessness on sensory, psychomotor, and motor functions have revealed minor effects but the perception of the postural vertical and the response of the circulatory system to the return of positive gravity are considered important problems