Static and Dynamic Retention Assessment of the HGU-56/P Aircrew Integrated Helmet System Equipped with Quick-release ALPHA and Snap-fastener Retention Assemblies

摘要

Currently, the HGU-56/P flight helmet chinstrap is fastened by looping the chinstrap webbing through two D-rings. Feedback from the Army aviation community has revealed possible problems with this design. The PM Air Warrior initiated testing of two alternate quick-release fastening mechanisms. The first, the ALPHA buckle, has been successfully used by the British military on their fixed- and rotary-wing helmets. The second is a Pull-the-Dot snap fastener that allows for a quick release. USAARL evaluated the retention qualities of HGU-56/P helmets fitted with both alternate buckle systems. Comparisons were also made between the three buckle types with respect to ease and speed of buckle release. HGU-56/P helmets equipped with the quick-release buckles should provide static and dynamic helmet retention equivalent to that of the standard helmet configured with the double D-ring buckle.