Originally posted by ANNED
The AH-64 uses the Hughes M230 Chain Gun.

Maximum range 4,500 m (4,920 yd)=2.796 miles.

That is a long way from the target.
And if the wind is blowing right someone on the ground would not hear what was coming.

Plus with a muzzle velocity of 2600 ft/s, these 30mm rounds reach their target at max range in less then 6 seconds.

Have you guys not played bf2, its easy to sneak up on infantry in an attack helo. I do it all the time. Its called not being aware of your surroundings.

Originally posted by mdiinican
It's probably just a matter of altitude. Airliners aren't exactly quiet, but you don't hear them when they're way up in the sky. I know for a fact that holds true for C-130s.

A fact that I think also accounts for a lot of UFO 'bright light in the sky AND OMG NO SOUND' sightings

where can i get a link to the video?