原创翻译:龙腾网 http://www.ltaaa.com 翻译:forbest 转载请注明出处
论坛地址:http://www.ltaaa.com/bbs/thread-331025-1-1.html

This is NOT a picture of a fighter jetbreaking the sound barrier: Biggest myth on the internet busted译文来源:龙腾网 HTTP://WWW.LTAAA.COM
这并非战机打破声障时的照片:互联网上最大的神话被破解了


The moments when a jet fighter created a vapour cone as it approached the soundbarrier have been captured in stunning detail in a set of photos - but it isnot the moment the jet broke the sound barrier, as such images are commonlymislabelled.
当一架战机接近声障速度时,就会产生这种蒸汽圆锥体,被拍摄了下来——但这并非战机打破声障的时刻,这一点通常被人们误解。
When a plane travels at high speeds thechange in pressure can cause water to condense around the vehicle, making anodd conical shape often associated with breaking the sound barrier.
当一架飞机高速飞行时,压力的改变可以促使周围的水蒸气压缩在战机周围,从而形成圆锥的形状,人们通常将这种现象与打破声障联系在一起。
However the effect occurs before the planeexceeds the speed of sound.
然而,这种现象发生在飞机突破音速之前。
That moment, though, is accompanied by a'sonic boom', which will be heard by observers as the plane passes them.
然而,这个时刻伴随着"音爆",当飞机飞过人群时人们可以听到。
Keen aviation photographer Darek Siusta's series of shots were all shot withina second as the Super Hornet fighter created the shock waves at around 760mph (1,225km/h). 译文来源:龙腾网 HTTP://WWW.LTAAA.COM
这组照片是摄影师在超级大黄蜂战机时速1225公里时拍摄下的冲击波现象,都在一秒内拍成。
To capture the shock waves caused by theboom he shot each frame using an extraordinarily fast 1/4,000 shutter speed.
为了捕捉到音爆所产生的这种冲击波现象,他使用的快门速度是1/4,000。

The US Navy F/A-18F Super Hornet, which has a top speed of 1,190mph (1,1915km/h), was flown by theStrike Fighter Squadron 106, also known as the 'Gladiators'.
美国海军的F/A-18F超级大黄蜂战机最高时速可达1900公里,这款战机由106攻击战斗机中队飞行。
The boom occurs when an aircraft travelsthrough the air faster than the speed of sound.
当战机飞行速度超过音速时就会产生这种音爆。
As the plane passes through the air itcreates a series of pressure waves in front of it and behind it, similar to thebow and stern waves created by a boat.
当飞机飞过空中时,在战机前方和后方产生了一系列的压力波,就好比一艘船在船头和船尾产生的波浪一样。

These waves travel at the speed of sound,and as the speed of the plane increases, the waves are forced together becausethey cannot get out of the way of each other.
这些压力波以音速的速度运转,随着飞机速度的提升,这些压力波被压迫在一起,因为此时它们互相之间已经无法躲避对方。
Eventually they merge into a shock wave,which travels at the speed of sound - approximately 760mph (1,225 km/h).
于是最终就产生了冲击波,速度达到了音速的水平——接近1225公里的时速。