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The term supersonic is used to define a speed that is over the speed of sound (Mach 1). In dry air at 20 °C (68 °F), the threshold value required for an object to be traveling at a supersonic speed is approximately 343 m/s, (1,125 ft/s, 768 mph or 1,236 km/h). Speeds greater than 5 times the speed of sound are often referred to as hypersonic. Speeds where only some parts of the air around an object (such as the ends of rotor blades) reach supersonic speeds are labeled transonic (typically somewhere between Mach 0.8 and Mach 1.2). Sounds are travelling vibrations (pressure waves) in an elastic medium. In gases sound travels longitudinally at different speeds, mostly depending on the molecular mass and temperature of the gas; (pressure has little effect). Since air temperature and composition varies significantly with altitude, Mach numbers for aircraft can change without airspeed varying. In water at room temperature supersonic can be considered as any speed greater than 1,440 m/s (4,724 ft/s). In solids, sound waves can be longitudinal or transverse and have even higher velocities. Supersonic fracture is crack motion faster than the speed of sound in a brittle material. From Wikipedia under the
GNU Free Documentation License  jajatom.moo.jp 602px x 420px | 41.80kB [source page] GALLY the SuperSonic Software PhotoShop CS Painter 8 Shade 6 I drew it for the cover of the comic magazine ultrajump april 2004  takklesoft.com 1125px x 1432px | 724.50kB [source page] Seattle Supersonic txt 03 Oct 2003 19 37 1k Seattle supersonic b > 03 Oct 2003 19 36 815k Seattle supersonic f > 03 Oct 2003 19 36 725k Seattle supersonic i > 03 Oct 2003 19 37 1 1M From Yahoo Image Search: "Supersonic"  metacafe.com Miikeymike ue, 23 Jun 2009 11:00:17 GM A great video of aGrumman F-14 Tomcat pilot flying low ball over the ocean. During the first few seconds of the video who can see the flares being dep. Watch Video about Grumman f14,Tomcat,Pilots by Metacafe.com.  mydisneymania.blogspot.com ZapperZ Mon, 15 Jun 2009 21:40:00 GM Stitch's . SuperSonic. Celebration at the Magic Kingdom is expected to close within the next two weeks. The show has only been open for around 6 weeks, but has failed to win over audiences. The main criticisms voiced on our discussion ...  thefreeadvertisingsite.com destiny3 Sun, 31 May 2009 00:44:37 GM Make ~REAL~ Extreme Earnings From The comfort of Your HOME~ Moreover, Don't Ever Lose Hope~ The Wise Man Always Have Multiple Streams Of Income. Plus, From Google Blog Search: "Supersonic"  news.google.com Aviation International News ... said it is nearing a decision on an aerospace manufacturing partner to lead the development and production of its supersonic business jet (SSBJ) design. ... and more » news.google.com CD Freaks.com By incorporating the Supersonic Wave Filter, the problem of dust entering the camera body and landing on the CCD while changing lenses - a phenomenon until ... Olympus E-P1 preview LetsGoDigital Olympus E-P1 First Look infoSync World Olympus MMF-1 Four Thirds Adapter imaging resource (press release) Amateur Photographer - T3 - engadget - imaging resource (press release) all 143 news articles » news.google.com USA Today So, understandably, he faced skepticism about why he deserved a supersonic shot to the big-time of TV sports and whether he could handle it. ... and more » From Google News Search: "Supersonic" How do you become supersonic on Sonic the Hedgehog for xbox360? Q. I've never played it but, my son said it happened on his game and doesn't know how. I have searched everywhere on the internet( can usually find most video game answers there) and came up with nothing. Thanks for any answers Asked by Bran - Sat Nov 15 21:21:42 2008 - - 1 Answers - 2 Comments A. You mean sonic the hedgehog 2006? well, for super sonic all you can only use him along with super shadow and super silver for the last boss fight. to unlock the last story you have to beat the game with all three sonic shadow and silver. once done you will have access to the final story. if he means it happened in normal gameplay, not in the final story, well than that's impossible. hope this helped! :) Answered by james m - Sun Nov 16 23:18:25 2008 Is it true that English Electric P1 supersonic fighter could increase its speed in a vertical climb? Q. Is it true that English Electric P1 supersonic fighter could increase its speed in a vertical climb? Asked by michael w - Sun Dec 17 17:14:29 2006 - - 3 Answers - 0 Comments A. Just like the F-15, its all about the thrust to weight ratio.. Answered by Shawn M - Sun Dec 17 17:55:55 2006 Why in air shows today, don't the jets fly at supersonic speed ?
Q. Instead of a boring fly by with two planes going at a combined 1200 mph, just have one plane go at 1200mph. Asked by jcpnum4green@att.net - Wed Sep 26 13:58:13 2007 - - 9 Answers - 0 Comments A. Sonic booms at low altitude can be damaging to some building with old windows, and plate glass. Disregard some answers, It is not illegal to fly Supersonic. There are a lot of restrictions. Have to have ACT clearance for tactical flight, in designate areas, above set altitudes. I worked at Warner-Robins Air Logistics Center on F-15s. During test flights, they would go Supersonic almost everyday. Just at high altitude. You could hear sonic booms on a regular basis. I now work at Ogling AFB, where they usually go out over the Gulf before going supersonic. Answered by Dennis F - Wed Sep 26 19:22:19 2007 From Yahoo Answer Search: "Supersonic" |
