![]() And at the end of last year, Airbus patented a jet that could fly at 4.5 times the speed of sound (also with a reduced sonic boom), taking passengers from London to New York in just 1 hour. It's pretty exciting stuff, because if sonic booms are no longer a problem, there's not a huge amount (aside from cost) stopping commercial airlines for travelling at or beyond the speed of sound.Īnd even though the Concorde was fast, in the 13 years since it's been retired, air travel has gotten even faster - there are now concepts for jets that can travel an incredible 10 times the speed of sound out there. "Developing, building and flight testing a quiet supersonic X-plane is the next logical step in our path to enabling the industry's decision to open supersonic travel for the flying public," said Jaiwon Shin, the associate administrator for NASA's Aeronautics Research Mission. Importantly, NASA will also work with the community to determine 'acceptable sound levels' for supersonic travel. The first step is for Lockheed Martin to develop some baseline aircraft requirements and, based on early research, outline a preliminary design for QueSST over the next 17 months. That design will then undergo initial testing, including wind tunnel validation, before NASA decides whether or not it'll be worth building. They've contracted aeronautical giants Lockheed Martin to complete a preliminary design of the aircraft for them, which they're calling Quiet Supersonic Technology (QueSST). As you can imagine, not exactly ideal for heavily trafficked flight paths.īut NASA hopes to change all that by developing a jet that's capable of quieter, or 'low boom', supersonic travel, and could allow commercial passengers to fly at speeds greater than the speed of sound again. As altitude increases, temperature decreases, thus the decrease in the speed of sound.It's hoped that the new jet could eventually fill the commercial gap left by the retirement of the Concorde - which travelled at twice the speed of sound (Mach 2) and could get passengers from London to New York in just 3.5 hours - but without all the noise complaints.įrom an engineering point of view, we've long had the ability to travel at supersonic speeds - which is generally anything over 1,234 km/h - but when we do, it triggers a sound explosion that can travel thousands of metres in a jet's wake, rattling houses and cars as it goes. I believe that the speed of sound is only dependent on temperature and nothing else. September 27, Air also becomes thinner the higher you go, amps a decibels are used to measure sound not its speed. as a matter of fact, there are airplanes that are super sonic, which means faster than sounds and they can break sound speed of sound is measured in terms of mach. ![]() October 4, if an airplane flew faster than the speed of sound it won't explode. How fast can sound waves travel at the absolute zero? Isn't it amazing how God created everything so perfectly, like sound waves, even down to the tiniest detail? Even the smallest bone in the body, located in the ear. How is the speed of light related to the speed of sound? The planes didn't explode they just broke apart. That is why they changed to delta shaped or swept back wings. May scientific calculations are based solely on this number alone.Ĥ2 minutes As airplanes went faster and faster, the design of the wings created stresses that caused both loss of control and structural failure at the transition to speeds higher than the speed of sound. It has a constant and finite speed of 186,000 miles per second. Light, on the other hand, is an electromagnetic force. Also, one can assume that if there is no media to transmit the wave then there is no sound. In water, sound travels approximately 4800 feet per second, more than four times faster than in air. See a flash of lightning then start counting. For approximately every five seconds the sound travels is one mile. The old lightning/thunder trick offers a good example. The speed of sound through air at ground level is approximately 760 mph, or approximately 1100 feet per second. Simply put, the denser the material the faster the sound waves travel. Sound propagates through a medium (liquid, solid, gas), and the properties of those media determine the actual speed. What is the number to break the speed of sound?
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