Additional Aviation Helmet Upgrades
The World's Greatest Helmet Is the One You Already Own!®
— With an Oregon Aero® Upgrade.
You can choose to send your David Clark "K" Helmet to Oregon Aero for installation of a modified ZetaLiner® Helmet Liner in addition to the other Upgrade components for this helmet. Contact us for information.
Two options are available for this Upgrade. Both options include a custom designed SoftTop® Headset Cushion, SoftSeal® Ear Cushions, SoftSkin® Ear Seal Covers, the HushKit® Passive Ear Cup Noise Attenuation Kit and a MicMuff® Microphone Cover. You can either install the SoftTop® Headset Cushion to complete the Upgrade without helmet modifications, or you can send your helmet to Oregon Aero where a custom-modified ZetaLiner® or Zeta II® Helmet Liner also will be installed.
Styrene Crush Liner #94100
For the SPH-4B®, SPH-5®, and all HGU helmets except the HGU-56
Helmets with molded liners can be sent to Oregon Aero for fittings and installation. We remove the molded liner and replace it with a new styrene crush liner (shown in photo above) and our comfortable ZetaLiner® or Zeta II® Helmet Liner. Call Oregon Aero for GSA Information.
Helmet Liner Upgrade Only Approved Liner Upgrade
For "HALO" Operations
Pro-Tec Helmet Liner Upgrade Kit
3/4" thick #95501-3
NSN 8415-00-X13-2885
7/8" thick #95502-4
NSN 8415-00-X13-2886
Oregon Aero is the sole supplier of a helmet liner upgrade for the Pro-Tec helmet used by several branches of the military in high altitude, low opening (HALO) operations. We developed the upgrade for U.S. Special Operations (SOCOM) to make the helmets comfortable and stable. The helmet liner also is waterproof and improves shock absorption.
Installed in minutes without any helmet modification. Made from several materials, including visco-elastic foam. Releases heat and air from scalp but is waterproof.
Developed for military pararescue soldiers, this helmet liner upgrade is effective for parachutists, mountain climbers, kayakers or anybody who uses this helmet style.
Exclusive breathable urethane coating releases heat and air from the scalp but resists water getting through. Each part goes throuh 27 steps during manufacturing to ensure optimum performance.
*SPH-4®, SPH-4B®, SPH-5® and TPL® are federally registered trademarks owned by Gentex Corporation. Use on this web site of these trademarks is made for reference purposes only. Oregon Aero has no business affiliation with Gentex.
