In theory, the Army could use such a system to approach targets covertly and drill through concrete, steel, wood, or other materials from a stand-off distance equal to the length of a football field.

理论上，美国陆军将利用该系统实现某些目标，既通过远距离(超过一个足球场的距离)的设备对混凝土、钢铁、木头以及其他材料进行隐蔽的击穿作业。

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"We considered over 30 designs and believe that the QSST is the only design that meets all the desired requirements including range, take-off and landing field length, take-off noise, emissions and sufficiently low sonic boom characteristics to enable supersonic flight over land, " he told CNN.

CNN: Bang goes the sonic boom

It took the gloss off a superb start by Quins, who led after just three minutes when debutant Chris Bailey released Gale with a superb pass and the stand-off raced half the length of the field to touch down.

BBC: Catalan Dragons 4-11 Harlequins RL

The All Blacks took an early 10-3 lead when lock Isaac Ross finished off a sweeping length-of-the-field move.

BBC: South Africa 31-19 New Zealand