Pall Aerospace filters aim to leave helicopter competition in the dust

The helicopter is arguably the most diverse asset of any military. From providing close air support to tactical airlift, or providing SAR to ISR, the rotorcraft continues to represent one of the most in-demand platforms across all major defence services, particularly given the increasing budgetary emphasis on multirole solutions.  At the same time, there is not a single environment on the planet that is not in some way operating rotor-wing aircraft, be it the bitter cold Arctic tundra, t...
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