试飞员肯·柯林斯(他在51区的飞行代号为肯·科尔马)在低空测试飞机的亚音速发动机时遭遇了可怕的事故。

Things went horribly wrong for test pilot Ken Collins (flying under his Area 51 code name Ken Colmar) when testing the plane's subsonic engines at low altitude.

youdao

尽管几家欧洲航空公司成功进行了穿越火山灰区域的测试飞行，但是因发动机吸入火山灰，芬兰一架喷气式战机损失惨重。

And though several European airlines conducted successful test flights in the danger zone, the engines of a Finnish military jet suffered considerable damage as a result of breathing in the ash.

youdao

在首次试飞时，发动机发生裂纹。

The engine cracked on the first test flight.

youdao