Head and neck mobility of pilots measured at the eye

Abstract

A study of the head and neck mobility of nine selected pilot subjects has been made by measuring the movement envelope of the pilot's eye position as he cranes his head and neck up, down and from side to side. During these movements the subjects looked forward at a target board through a sight aperture. The subjects were strapped into an ejection seat instrumented to monitor harness tension, and were clothed in standard RAF summer and winter aircrew equipment assemblies. The effects of wearing a standard RAF Mark 2/3 flying helmet, and differences between movement with summer and winter flying clothing have been assessed.