The HGU-20/P Robert Shaw Controls Co. helmet differs from other protective flying helmets in that it is a closed type with a built-in oxygen system. It was intended to eliminate the need for an oxygen mask and to provide improved helmet retention under windblast. The helmet entered fleet testing in 1965 as was popular with attack squadron aircrews. However, it was withdrawn from service in 1971 because it restricted the pilot's vision in combat.
Transferred from the Department of the Navy
United States Navy Type HGU-20/P Protective Flying Helmet; "clam shell" hinge designed helmet; white plastic outer shell with flip up clear plastic visor and smoked sun visor; black plastic liner adjustment knob on right side; visor knob on each side; helmet latch on each side; internal microphone; sage green nylon covered oxygen hose; orange and white striped reflective tape on helmet; United States Naval Aviator badge decale on front of helmet; black text "U.S. NAVY" decale below Aviator badge.