Helicopters have one of the most recognizable sounds in aviation. The signature "whop whop" or deep thumping sound announces its arrival long before it appears in the sky. It's a sound so iconic, it's ...

A low-flying helicopter sparked a mating frenzy at a crocodile farm in Australia. It's currently courtship season for saltwater crocs on the continent. The crocs may have mistaken the chopper's sound ...

Helicopters have few ways to fight back against incoming fighter aircraft. Surprisingly, though, it is far harder to shoot down a helicopter from a plane than one might imagine. Fighters against ...

A study has found that the "thunderous sound" made by the rotor blades of military helicopters "provokes sex frenzies among saltwater crocodiles in Australia", said The Telegraph. The researchers ...