2-1. CONTROLS, DESCRIPTION, AND USE-Continued
CONTROL AND INDICATORS-Continued:
CHIN STRAP (7)
When snugged, it secures helmet to wearer's
head. To remove quickly, pull on tab located on
right end of chin strap.
Provides eye protection when in down position.
Four types are available:
Neutral (smoke color)
LPV (day use amber)
LPV (night use, green)
Provides communications within the aircraft and