<title>Elevation head motion in rotary-wing flight with helmet-mounted displays</title>

Abstract

In spite of an immense increase in interest in helmet-mounted displays (HMDs) over the pass two decades, there have been few studies on head motion while using HMDs in operational flight. Rotary-wing flights conducted using a number of HMD configurations have resulted in a head position database that will be useful in filling this void. Various analysis techniques have been applied to investigate characteristics of elevation head position distributions for a slalom flight maneuver for four visual environments: good visual environment (daytime, unaided), night vision goggles, HMD with thermal imagery, and HMD with thermal imagery and symbology.

Roll head motion in rotary-wing flight with helmet-mounted displays

“…Analyses of azimuth and elevation head motion data for the slalom maneuver only have been completed and recently reported. 9,10 This paper continues the investigation of the head motion data by reporting the analysis of the roll head motion for the same flights and conditions used in the azimuth and elevation analysis.…”