Dark spot under cockpit of A-10s

Re:Dark spot under cockpit of A-10s by diydsp on Thursday March 06, 2014 @01:26PM (#7355584)

Thanks for these. I had never heard it before.

It sounds like two-three main sounds. There's a snappy one, then a grunty one, then a crackly one.

Is the snappy the bombs exploding reaching, the grunty the gun sounds reaching the mic and the crackly one some kind of secondary explosion?

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Re:Dark spot under cockpit of A-10s by refurb on Thursday March 06, 2014 @03:37PM (#7356398)

Crack is the supersonic crack of the round, then explosion of the round when it hits the ground and the "brrrr" is the sound of the propellent gases leaving the barrel of the gun.

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Re:Dark spot under cockpit of A-10s by bane on Thursday March 06, 2014 @03:40PM (#7356420)

The rounds are supersonic, so the first sound you hear is the sound of the rounds hitting the target, then you hear the sound of the gun firing arriving at the much slower speed of sound.

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