Description: Clean recording of military type helicopter blades popping air as it is incoming or flying by. Stereo.

Description: Police helicopter passes by while circling. Stereo.

Description: Helicopter Cougar on the track apart, rotor on, blades moving bg Air Force Base

Description: Razor sharp military quality helicopter blade spinning at a steady speed. Stereo.

Description: Helicopter heard from pilot perspective, inside 'copter

Description: Helicopter Sikorsky S92A MK2 Helibus, at the track checking motors airport bg lane

Description: Helicopter Sikorsky S92A MK2 Helibus, at the track checking engines airport bg another helicopter passes landing

Description: Helicopter, propeller engine, from the rural area, birds, cicadas-a

Description: Helicopter, propeller engine, from the rural area, birds, cicadas

Description: Helicopter, comes rapidly goes over the house and disappears

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