Original U.S. Vietnam War Pilot APH-6A Flight Helmet - Scorpion Category_Accessories The shell is maker marked

The shell is maker marked with a stamping on the underside of the rim that reads ZC 65

- 78th Infantry Brigade (155th Infantry

- 100th Infantry division patches

The resulting noise is harsh

Original U.S. Vietnam War Pilot APH-6A Flight Helmet - Scorpion Category_Accessories The shell is maker markedOriginal Item: Only One Available. At the end of the 50's the APH series helmets introduced a new generation of flight helmets characterized by the external visor covered with a protective shield. Improvement of the communication system, internal liner and oxygen mask retainers was also made and in some versions the dual dark and transparent visors system was installed. These types of helmets were the US Navy and USMC standard jet aircraft headgear