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Just going to ask all my questions at once

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Unread postAuthor: Pyro » Sun Dec 07, 2008 8:16 pm

Ragnarok wrote:
starman wrote:They say the sound of an incoming round is absolutely horrifying... <snip> all coming at you at about mach 2.5

There seems to be a a disjoint here - you can't hear something coming at you if it's supersonic.

Yup, you'll be dead before you hear it. But people who heard them flying overhead said they sound like a freight train zooming overhead.
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