GENTEX HGU-56P


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The U.S. Army’s newest helicopter helmet, Gentex’s HGU-56, is being used by the U.S. Army, Air Force, Coast Guard, and by the Marine Corps for V-22 Osprey operations. The HGU-56 offers greater impact and tear protection than other helicopter helmets as well as many other improvements.

The HGU-56 shell is a hybrid composite made from SPECTRA® and graphite embedded in an epoxy matrix. Graphite provides the stiffness and rigidity needed for NVG goggles. SPECTRA® helps prevent penetration of the helmet and helps the helmet withstand multiple impacts that are common in helicopter accidents. SPECTRA® also allows the HGU-56 shell to flex during an impact as a means of dissipating energy.

The HGU-56 liner is made from expanded bead polystyrene that is thicker and has a lower density than liners used in previous helmets.

 

The fitting liner is Gentex’s new Super Comfort Liner that uses several dimpled plastic sheets with an inner layer of visco-elastic foam for comfort. The entire liner is covered by washable cloth fabric that can be replaced when dirty.

The HGU-56 retention utilizes “V” straps attached directly to the helmet. The chinstrap is attached to the bottom of the “V.” straps. A wide, adjustable napestrap integrates with the “V” straps. The combined “V” straps, low-elongation chinstrap, and integrated nape strap yields an exceptionally stable helmet. Sound-attenuating earcups attach to the retention with Velcro for easy adjustability.

The dual visor module assembly includes outer dark and inner clear impact-resistant, UV-absorbing lenses. An optional visor housing includes a quick-disconnect adapter that provides a stable platform for ANVIS night vision goggles. Standard color is white.

 

HGU-56P helicopter helmet features

 

Visor lens


Impact resistant polycarbonate.
Protects from harmful UV rays.
Dual visor helmet: Outer dark and inner clear lenses.
Optional: Amber, high contrast, and gradient lenses

 

Shell composite Spectra® and graphite

 
Liner system

Pre-formed Thermoplastic Liner (SCL®)

 

Weight
(without communications)
2.8 to 3.2 pounds (1270 - 1585 grams)
Paint, art, and communications affect weight.

 
Chin strap Double D-Ring and snap, 440 lbs pull strength

 
Sound attenuations 24 db at 1,000 Hz, 43 dB at 4,000 Hz

 

Impact decelerations

 

Crown: 175g at 16.1 fps

Earcup: 175g at 29.6 fps

 

Shell tear 5 cm

 
Sizing

 

Size

Head Circumference

Head
Length

XX-Small

Less than 20 3/4"

7 1/8"

X-Small

20 3/4 - 21 3/8"

7 3/8"

Small

21 1/2 - 22 1/4"

7 11/16""

Medium

22 3/8 - 23 1/8"

8"

Large

23 1/4 - 24"

8 5/16"

X-large

Over 24 1/8"

Over 8 5/16"

 

 

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