Comfortable Centre-of-Mass for Headgear Design – with an Application to a Helicopter Pilot Helmet

The paper describes two studies. In the first study the most comfortable position of headgear centre-of-mass is determined for three masses. The positions are described in a head-fixed co-ordinate system based on skull geometry and eye position, considering that these are essential to all headgear, and anticipating the growing use of 3D scan data in headgear design. In the second study the results were applied to a helicopter pilot helmet to improve comfort when using night vision goggles.