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一百万英镑747-8如何测试中,它的刹车

Watch this amazing video of what happens when Boeing wants to make sure the carbon ceramic brakes on its new Boeing 747-8 work under the worst possible conditions. 具体来说, 波音公司有模拟的最坏的可能条件: 与没有磨损刹车上的反向推进器被拒绝起飞. 结果? Red-hot 2,552 degree brakes. Yowch!

Boeing’s 747-8 is the latest and most economical version of company’s popular jumbo jet. 作为他们不得不放起落架以确保在最大负载测试过程的一部分它将会阻碍在紧急情况下.

模拟最坏的情况, 这架飞机装满燃料的最大重量 (约 975 K 磅), the brakes are worn down 100%, and a pilot is told to accelerate to a takeoff speed of 200 mph and then slam on the completely toasted brakes as if it were part of an aborted takeoff.

通常, 飞行员将尝试使用推力反向器停止飞机和消防队员将手上在三分钟内启动灭火. 在这个实验中,他们承担推进器不工作和消防队员都满五分钟的路程.

结果? It stopped about 700 feet short of the estimated length as the brakes glowed under the 1,400C (2,552F) 热。”

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