Vertical Impact Testing of Two Helmet-Mounted Night Vision Systems

摘要

The Air Force is investigating the use of helmet-mounted technology to improvepilot performance. One potential draw-back to the new helmet systems is the potential for increased neck injuries during emergency ejection due to the helmet's weight and center-of-gravity. A recent test program evaluated the risk of neck injury of two helmet-mounted night vision systems by subjecting an instrumented manikin (ADAM) to + Gz impacts using a vertical deceleration tower. The helmets were the Concept VI from Night Vision Corporation, and the ANVIS 49/49 from ITT. Results indicate that both helmets were lighter than previous helmets, and met the Interim Head and Neck Criteria. They also produced neck loads in an ACES II seat that are less than what a standard helmet produces in a B-52 seat, and produced neck loads in a B-52 seat that are less than the maximum (400 Ibs) required for major neck injury (fracture, etc.).