Hi
Reedoak made an SPH-4 US Army helicopter pilot helmet (for Huey and others)
This helmet was also used in gulf war, and until recently, before replacement by the HGU-56/P.
Interior is detailled.
Vietnam : left in 1/35, center in 1/48. The one right in 1/35 is post-vietnam with velcro plates on the back.
and lost in the inside...
cheers
Norbert