NPFC - MIL-DTL-43511
VISORS, FLYER'S HELMET, POLYCARBONATE
|Publication Date:||12 October 2006|
This specification covers general and performance requirements for curved polycarbonate flyer's helmet visors worn by aircrew personnel.
The class 1, class 2, and class 3 visors are intended to be used on flight helmets used by aircrew personnel.