The Alpha 400 Series incorporates a unique multi-fit system which provides rapid  and accurate fitting to a wide range of head sizes. This high performance  lightweight helmet protects users of all non-ejection seat aircraft who might  otherwise fly unprotected.

Features

• unique multi-fit system (2 sizes)
• instant fitting
• Aramid/Carbon fibre shell
• uninterrupted field of view

Performance

• Impact protection - Below 300g deceleration for a 122 Joule (90ft/ib) input  energy.
• Penetration  protection - Designed to stop a 1.8Kg striker dropped from 1.5 metres
• Noiseattenuation - Over 40db @ 4kHz.
• Optical  - luminous transmittance 85% clear visor, 15% tinted  visor.

Options

• Single or dual visor
• Hard or Valveteen cover
• ANR
• Built-in amplifier (switch from dynamic to electret)
• Straight or coiled downlead
• Peltor noise compensated microphone
• UK-NATO or US-NATO plug

Delivery

• 10 - 12 Weeks

Note

Alpha and Alpha Eagle are trade marks, and are the property of Helmet Integrated Systems Ltd (HISL). the use of these trade marks does not imply any approval by HISL of any repair or retroffing service herein offered.