It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Originally posted by Vandettas
reply to post by Biigs
Yes, but it wouldn't rattle or shake windows. This scenario was actually tested by flying a jet over a house to see the effects.
Quietlike: Do sonic booms really have the potential to bother people that much? I mean, does the aviation community believe there might someday be enough supersonic aircraft in the air that it would be a pain to people?
Ed.: Right now there are sonic booms around military bases, and some of them are very loud. They can be startling. If the airplane is very low to the ground, it can break windows. The very low altitude supersonic flights are done in very remote areas. These future low boom aircraft should be very quiet and be able to fly anywhere around the world.
Overpressure
Sonic booms are measured in pounds per square foot of overpressure. This is the amount of the increase over the normal atmospheric pressure which surrounds us (2,116 psf/14.7 psi).
At one pound overpressure, no damage to structures would be expected.
Overpressures of 1 to 2 pounds are produced by supersonic aircraft flying at normal operating altitudes. Some public reaction could be expected between 1.5 and 2 pounds.
Rare minor damage may occur with 2 to 5 pounds overpressure.
As overpressure increases, the likelihood of structural damage and stronger public reaction also increases. Tests, however, have shown that structures in good condition have been undamaged by overpressures of up to 11 pounds.
Sonic booms produced by aircraft flying supersonic at altitudes of less than 100 feet, creating between 20 and 144 pounds overpressure, have been experienced by humans without injury.
Damage to eardrums can be expected when overpressures reach 720 pounds. Overpressures of 2160 pounds would have to be generated to produce lung damage.
Typical overpressure of aircraft types are:
SR-71: 0.9 pounds, speed of Mach 3, 80,000 feet
Concorde SST: 1.94 pounds, speed of Mach 2, 52,000 feet
F-104: 0.8 pounds, speed of Mach 1.93, 48,000 feet
Space Shuttle: 1.25 pounds, speed of Mach 1.5, 60,000 feet, landing approach
Originally posted by markymint
Crazy isn't it. Over all those counties? And such is weird that 4 minutes before the UK had a small Earthquake. WTF!
Earthquake at 18:06 news.bbc.co.uk...
"Sonic Boom" at 18:10 www.bbc.co.uk...
Clarity is needed - what were they sending Typhoons to? If a Helicopter sends a distress signal, why would they send jets? I thought jets deal with air threats. I'm sure it's legit, just strange IMO. I didn't hear anything in South Oxon though, definitely didn't hear any passing jets.edit on 12-4-2012 by markymint because: fix errors
Page last updated at 07:27 GMT, Monday, 27 October 2008
Originally posted by markymint
Crazy isn't it. Over all those counties? And such is weird that 4 minutes before the UK had a small Earthquake. WTF!
* Earthquake at 18:06 news.bbc.co.uk...
"Sonic Boom" at 18:10 www.bbc.co.uk...
Clarity is needed - what were they sending Typhoons to? If a Helicopter sends a distress signal, why would they send jets? I thought jets deal with air threats. I'm sure it's legit, just strange IMO. I didn't hear anything in South Oxon though, definitely didn't hear any passing jets.edit on 12-4-2012 by markymint because: fix errors
Originally posted by djyorkie
I believe the sonic boom report is a cover up.
I just looked right now on the bbc website, travel, and EVERY airport in the UK is disrupted
Not taken a screen cap, but this isnt normal
bbc airport status
Connected?
Originally posted by OliArtist
Anyone explain the basic glaring elephant in the room? Why would the 'sonic boom' be heard and felt almost a hundred miles away from the flightpath? Brize Norton, Oxon, to Bath is just a little straight line - no complex routing required. How on earth could the sounds and shaking in Coventry and Staffordshire be explained?