| HGU-55/E helmet features |
|
Visor lens
|
Impact resistant polycarbonate.
Protects from harmful UV rays.
Single visor helmet: Dark lens.
Optional: Clear, Amber, high contrast, and gradient lenses
|
| Shell composite |
Available in Fiberglass or Kevlar® shells
|
| Liner system |
Pre-formed Thermoplastic Liner (SCL®)
|
Weight
|
Large: 37 ounces (1048 grams)
Paint and art affect weight.
|
| Chin strap |
Adjustable nylon strap with leather chinpad
|
| Nape strap |
Adjustable nylon strap with leather napepad
|
| Edgeroll |
Custom fit helmets: Fit to face (ideal for glasses)
Standard fit helmets: Standard fit
|
| Earpads |
Standard: Leather earpads
(sound attenuation 20 db at 100Hz, 39 db at 4000 Hz)
Optional: Leather earpads with hard plastic cup
(sound attenuation 26 db at 100Hz, 43 db at 4000 Hz)
|
| Liner system |
Gentex® Super Comfort Liner (SCL) - Standard
Gentex X-Liner®
Percentile leather covered urethane
Custom fit leahter covered urethane
|
| Oxygen mask receivers |
Optional: White, chrome plated, or painted to match helmet. Also available in a light receiver.
|
| Caution |
HGU-33, HGU-55, HGU-55/E and HGU-68 helmets have been designed for use in fixed-wing aircraft. They offer limited impact protection. Users with other applications should consider helmets with greater impact protection designed specifically for their application.
|
| Sizing |
|
Size
|
Head
Circumference
|
Head
Length
|
|
Medium
|
Less then 22 1/2"
|
7 3/4"
|
|
Large
|
22 5/8 - 23 7/8"
|
8 1/4"
|
|
X-Large
|
Over 23 7/8"
|
8 7/8"
|
|