Comments on: What happens when you are in an aircraft that breaks the sound barrier? http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier Sound Barriers and Noise Reduction for Home Music Studios Sat, 19 May 2012 07:57:20 +0000 http://wordpress.org/?v=2.7 hourly 1 By: John B http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier/comment-page-1#comment-1314 John B Mon, 29 Jun 2009 01:22:59 +0000 http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier#comment-1314 What you are hearing when you hear a sonic boom is the shock wave that is traveling with the airplane.The shock wave is moving accross the ground at the same speed as the aircraft so you hear it only when it passes over you. If it passes over somebody a few miles from you first, they will hear the boom before you will. Actually you will usually hear two booms. One is the bow wave, or air compressing in front of the aircraft and the other is the shock wave created by the wings. If you'll think about the last time you heard one it was two beats, more like kaboom than just boom. That boom boom is the two shock waves causing the air to move all the way to the ground. But inside the aircraft, it's amazingly quiet especially at very high altitudes.<br><b>References : </b><br> What you are hearing when you hear a sonic boom is the shock wave that is traveling with the airplane.The shock wave is moving accross the ground at the same speed as the aircraft so you hear it only when it passes over you. If it passes over somebody a few miles from you first, they will hear the boom before you will. Actually you will usually hear two booms. One is the bow wave, or air compressing in front of the aircraft and the other is the shock wave created by the wings. If you'll think about the last time you heard one it was two beats, more like kaboom than just boom. That boom boom is the two shock waves causing the air to move all the way to the ground. But inside the aircraft, it's amazingly quiet especially at very high altitudes.
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]]> By: Scott A http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier/comment-page-1#comment-1313 Scott A Mon, 29 Jun 2009 00:53:59 +0000 http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier#comment-1313 I'm a former F-14A RIO with almost 1000 hours in that jet, and have been supersonic dozens, if not hundreds, of times. In the Tomcat, passing through Mach 1 is just a number on the dial. Down low, below 500 feet, the world moves by pretty quickly, and your vision tunnels a bit. At altitude, where most supersonic dashes are made, it doesn't look or feel much faster than a standard airliner (most of which cruise at about Mach .83, anyway). One sound that does increase at high speed is the wind noise over the canopy. At Mach 1.5 in the Tomcat, I could hear the roar of the wind really well, even over the roar of the ECS (the air conditioner) and through my helmet ear cups. The only other sounds that I've heard in the jet (that I didn't hear *through* the frame of the jet, like the braaaaap of the gun or the thu-thunk of bombs coming off) was the rocket motor noise of the AIM-54As I shot on missile shoots. Sounded like big, powerful, bottle rockets.<br><b>References : </b><br> I'm a former F-14A RIO with almost 1000 hours in that jet, and have been supersonic dozens, if not hundreds, of times.

In the Tomcat, passing through Mach 1 is just a number on the dial. Down low, below 500 feet, the world moves by pretty quickly, and your vision tunnels a bit. At altitude, where most supersonic dashes are made, it doesn't look or feel much faster than a standard airliner (most of which cruise at about Mach .83, anyway).

One sound that does increase at high speed is the wind noise over the canopy. At Mach 1.5 in the Tomcat, I could hear the roar of the wind really well, even over the roar of the ECS (the air conditioner) and through my helmet ear cups.

The only other sounds that I've heard in the jet (that I didn't hear *through* the frame of the jet, like the braaaaap of the gun or the thu-thunk of bombs coming off) was the rocket motor noise of the AIM-54As I shot on missile shoots. Sounded like big, powerful, bottle rockets.
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]]> By: david p http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier/comment-page-1#comment-1312 david p Mon, 29 Jun 2009 00:06:59 +0000 http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier#comment-1312 You are going real fast!!<br><b>References : </b><br> You are going real fast!!
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]]> By: ericbryce2 http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier/comment-page-1#comment-1311 ericbryce2 Sun, 28 Jun 2009 23:30:59 +0000 http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier#comment-1311 There is no sensation when it happens. When the Concorde hit mach 1 there wasn't so much as a ripple in your glass of champagne.<br><b>References : </b><br> There is no sensation when it happens. When the Concorde hit mach 1 there wasn't so much as a ripple in your glass of champagne.
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]]> By: gromit801 http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier/comment-page-1#comment-1310 gromit801 Sun, 28 Jun 2009 23:16:59 +0000 http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier#comment-1310 You don't hear anything in the aircraft, and no strange movement from the aircraft either. They're designed to attain the speed of sound quite cleanly.<br><b>References : </b><br>Eight years in the USAF, and one great trip to the UK on a Concorde. You don't hear anything in the aircraft, and no strange movement from the aircraft either. They're designed to attain the speed of sound quite cleanly.
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Eight years in the USAF, and one great trip to the UK on a Concorde.

]]> By: Baron_von_Party http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier/comment-page-1#comment-1309 Baron_von_Party Sun, 28 Jun 2009 22:39:59 +0000 http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier#comment-1309 Naw, it's real disappointin'. Hell the last time I did it, I slid the canopy back a piece and leaned waaayyy over t'the left side, and hell I didn't hear a damnedable thang. Jus' like back in '47, nuthin'. Hell you ask me and I'll tell ya I don't think the damned (sound barrier) even exists...........<br><b>References : </b><br>I'm really Chuck Yeager, fastest sumbitch alive............ Naw, it's real disappointin'. Hell the last time I did it, I slid the canopy back a piece and leaned waaayyy over t'the left side, and hell I didn't hear a damnedable thang. Jus' like back in '47, nuthin'. Hell you ask me and I'll tell ya I don't think the damned (sound barrier) even exists………..
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I'm really Chuck Yeager, fastest sumbitch alive…………

]]> By: gremlingts http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier/comment-page-1#comment-1308 gremlingts Sun, 28 Jun 2009 22:09:59 +0000 http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier#comment-1308 You'll never hear the actual sonic boom in the cockpit, so I've heard, at least on acceleration. Now, DEcelerating from Mach 1, you may hear something, but I've never heard anyone mention that, only that you hear nothing after the initial Mach 1 punch-thru going faster, not slowing down. I'd suspect, as you're traveling WITH the wave, in front of it, that you wouldn't hear much, only if you're traveling in the opposite direction.<br><b>References : </b><br> You'll never hear the actual sonic boom in the cockpit, so I've heard, at least on acceleration. Now, DEcelerating from Mach 1, you may hear something, but I've never heard anyone mention that, only that you hear nothing after the initial Mach 1 punch-thru going faster, not slowing down. I'd suspect, as you're traveling WITH the wave, in front of it, that you wouldn't hear much, only if you're traveling in the opposite direction.
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]]> By: Chuck S http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier/comment-page-1#comment-1307 Chuck S Sun, 28 Jun 2009 21:21:59 +0000 http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier#comment-1307 when you travel supersonic,the cockpit gets suddenly quiet. There is some turbulence when you cross the barrier though. It is interesting to watch the compression waves just ahead of the nose of the plane when it makes Mach .. I'll see if I can find a video link.<br><b>References : </b><br> when you travel supersonic,the cockpit gets suddenly quiet.
There is some turbulence when you cross the barrier though. It is interesting to watch the compression waves just ahead of the nose of the plane when it makes Mach .. I'll see if I can find a video link.
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]]> By: Josherz http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier/comment-page-1#comment-1306 Josherz Sun, 28 Jun 2009 21:16:59 +0000 http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier#comment-1306 To create a sonic boom, the jet must be traveling faster than the speed of sound. Therefore, I would assume that the pilot would hear nothing, as they are traveling faster than the sound the jet is creating, so the sound would have no way to reach ahead of the jet and audible to the pilot. Again, purley an assumption, but I still hope it helps.<br><b>References : </b><br> To create a sonic boom, the jet must be traveling faster than the speed of sound. Therefore, I would assume that the pilot would hear nothing, as they are traveling faster than the sound the jet is creating, so the sound would have no way to reach ahead of the jet and audible to the pilot. Again, purley an assumption, but I still hope it helps.
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]]> By: Shadow Strike http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier/comment-page-1#comment-1305 Shadow Strike Sun, 28 Jun 2009 20:57:59 +0000 http://www.woolyinc.com/5/what-happens-when-you-are-in-an-aircraft-that-breaks-the-sound-barrier#comment-1305 I have heard that it feels like a small Earthquake in the sky, but it must a severe rush. I have been just UNDER breaking the sound barrier and that feeling was cool enough, but I'd love to experience that just once!<br><b>References : </b><br> I have heard that it feels like a small Earthquake in the sky, but it must a severe rush. I have been just UNDER breaking the sound barrier and that feeling was cool enough, but I'd love to experience that just once!
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