The Gentex SPH-5 Helicopter helmet provides superior protection and comfort in a lightweight design. Its high-strength, lightweight Para-Aramid and reinforced with epoxy resin shell, it includes a polystyrene energy-absorbing liner and a comfortable fitting system. The wide yoke-style retention system stabilizes the helmet and can be adjusted for optimum fit with the chin and nape straps. Crushable sound-attenuating earcups screen out excessive noise levels. The visor systems include optically correct, abrasion-resistant, polycarbonate lenses that protect the eyes from glare, wind, and dust. SPH-5 helmets are available with single, dual visor or ANVIS quick disconnect dual visor assembly. Standard color is white.
VISOR LENSES Impact resistant polycarbonate.
Protects from harmful UV rays.
Single visor helmet: Dark lens.
Dual visor helmet: Outer dark and inner clear lenses.
Optional: Amber, high contrast, and gradient lenses
Shell Composite Para Aramid composite with epoxy resin
Liner System Pre-formed Thermoplastic Liner (SCL®)
Weight
(without communications) 2.7 to 3.5 pounds (1225 - 1585 grams)
Paint, art, and communications affect weight.
Chin strap Chin strap
Sound attenuations 24 db at 1,000 Hz, 43 dB at 4,000 Hz
Impact decelerations Crown: 300g at 17.5 fps
Earcup: 175g at 19.6 fps
|
Size
|
Head Circumference
|
Head Length
|
| Small |
Less then 21 3/8"
|
7 3/8"
|
| Regular |
21 3/8"-22 3/8"
|
7 7/8"
|
| X-Large |
22 3/8 - 24 1/4"
|
8 3/8"
|
| XX-Large |
Over 24 1/4"
|
8 5/8"
|