SPH-4B
is the most commonly used military helicopter helmet in the field. Aeromiltec standard configuration is in O.D.color with NATO commset, 24 inch coiled or straight cordset, in sizes Regular or XL. NVG quick release clip is optional at extra charge. The
helmet shell is a high-strength, lightweight composite reinforced with
epoxy resin. Rubber edge beading covers the peripherals of the shell.
Inner Liner
The energy-absorbing liner we deliver with is either the Zeta comfort liner or the rigid polystyrene molded to conform to the inside of the helmet shell. Each lightweight earcup assembly consists
of a contoured plastic earcup and a cushioned earseal (with a raised
inner ring for maximum sound attenuation and comfort).
Communications
The
communications system consists
of a boom-mounted microphone M-87/AIC or Electret Mic , dual earphones,
and a communications
cord. A flex boom is available as an upgrade.process. The visors
assembly is available in a dual or single visor configuration. The dual
visor option is
available in 3 forms; plain (non-NVG compatible), or NVG platform
(provides a
permanent mount platform), and quick-disconnect version.Aeromiltec can deliver the helmet with ANR system.
Chinstrap/Retention Assembly Strength
The
chinstrap/retention assembly withstands a strength test of 300 pounds
when tested in using ANSI Z90.1lb test methodology and equipment.
Available in double D-ring or as a quick-disconnect (snap).
Customization
Each helmet can be designed and/or
configured with a variety of different features: earphones, wire or flex
boom microphones, communications cords/plugs, communication earplugs,
and ANR (Active Noise Reduction). Other upgrade accessories such as NVG , ANR Headsets and Lipe Lites are
available upon request.