Monday, 19 Mar, 2012 Technology
21
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Supersonic Biplane Designed to Fly Without Sonic Boom

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A team of researchers at Tohoku University are working on a supersonic biplane that will eliminate sonic booms completely.

As the plane flies through the sky, it is constantly pushing a series of waves of air out of its way. It would be interesting to note that when the plane flies slower than the speed of sound, these waves of air travel at the speed of sound and people on the ground will simply hear just the noise of the airplane.

The phenomenon of sonic boom occurs when the plane reaches the speed of sound. This is when the waves of air cannot go faster than the aircraft and they stack up on each other. This leads to the creation of a shockwave of sound at the front of the aircraft. The shockwave can very unpleasant for those standing on the ground if they get hit by it. In addition, people get also smacked by another shockwave that was created by the negative pressure at the plane's rear. Thus the double boom occurs.

The concept aircraft is called Misora (Japanese word for "sky") and it represents a completely new type of sonic plane. Developed by the Institute of Fluid Science at Tohoku University, the biplane has its wings arranged in a way to reflect the positive and negative shockwaves back at each other, thus zeroing them out.

In such a way it is possible to reach supersonic speeds without generating shockwaves.

[via Dvice]

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Comments:

18 votes

//3 May 23, 2012 11:38 AM | posted by: Enomouse
ascension parish is ground zero , this is an investication there tring to keep silent , not to scare there citizens and stock market , especially after Romanov insident and the stock market. , crash in war 1. Same reason most of these earth quakes , fires valcanos , tornadoes . It's causing a disterbince in earths thermial dynamics , the frequencys being used .
19 votes

//2 May 23, 2012 11:16 AM | posted by: Houseofdavid
ascension parish is ground zero , this is an investication there tring to keep silent , not to scare there citizens and stock market , especially after Romanov inessent and the stock market. ,
13 votes

//1 May 23, 2012 11:12 AM | posted by: Houseofdavid
My country is having difficulties with an angel and demon or alien problem , they have used all kind of planes , even flying through clouds . To pick frequency or brake the transmision . Maybe ir plane could be of assistance . They keep throwing americains in prisons , jails , because there unsuccessful with all there areospace tranning and transmissions .some people call then gaurdian angels some call them fallen angels or aliens . Same creators from war 1 and 2

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