AIRCREW HELMET OF CAVITY CONSTRUCTION

摘要

A helmet suitable for use by aircrew constructed in separate, interlocking sections (1, 2) hinged together at the crown and held in place by side latches, characterized in that both sections (1, 2) are of double skin construction with the cavity between the outer and inner skins (5, 4) containing a lightweight foam material (6) that may conveniently be formed so as to define passages (7) as required for cable conduits and air passages. Preferably, the interlocking sections of the helmet comprises a front section on which head-up display optics (3), for example, may be mounted, and a rear section, on which power supply connections and other components may be mounted. To assist the helmet in providing a stable base for instrumentation, an inner liner (9) may be attached to the inner surface of the inner skin of the helmet sections which is moulded or otherwise formed to conform to the head of the particular wearer.