European Space Agency’s sound system is so loud it could kill you | Science! | Geek.com
I guess they coined the phrase: "brain-melting air horns"
I guess they coined the phrase: "brain-melting air horns"
NASA's Plum Brook Station tests rocket fairing for SpaceX (video) | cleveland.com
The Plum Brook horn room is the world's most powerful acoustic facility, able to blast out 163 decibels of sound, far louder than a jet engine. The thunderous noise is generated by a torrent of nitrogen gas – 70,000 cubic feet per minute, roughly the volume of an Olympic pool every 60 seconds – roaring through stainless steel horns. "It's like a tornado of nitrogen gas flowing through all those horns," said Jerry Carek, who manages the space simulation facility. The horns are bare metal, since the sound is literally loud enough to peel paint.
The Plum Brook horn room is the world's most powerful acoustic facility, able to blast out 163 decibels of sound, far louder than a jet engine. The thunderous noise is generated by a torrent of nitrogen gas – 70,000 cubic feet per minute, roughly the volume of an Olympic pool every 60 seconds – roaring through stainless steel horns. "It's like a tornado of nitrogen gas flowing through all those horns," said Jerry Carek, who manages the space simulation facility. The horns are bare metal, since the sound is literally loud enough to peel paint.
That is the new small low power system. The old one could simulate a shuttle or Saturn 5. If I remember the paper, the safe zone was three miles. It used the exhaust from jet engines that was modulated. It was a long time ago and I remember it was in the "science" press, so how much fact and how much uninformed reporting I don't know.
That may have been one of the small ones. NASA had some with 8 foot mouths, maybe bigger.
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