它采用的四发涡轮增压发动机、高单翼和尾部大型货仓设计使其已经累积飞行时间已经超过2000万小时，是美国和超过60个国家的首选运输机。

The turbo-prop, high-wing, versatile “Herc” has accumulated over 20 million flight hours. It is the preferred transport aircraft for many US Government services and over 60 foreign countries.

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要是重新设计一番，将它的翅膀加大，用航空发动机替代现有发动机，向上倾斜5度角飞行，每小时它大概能飞900公里，霍克斯说；

Redesigned with aero engines and larger wings, it could be made to fly at about 900 kilometres per hour with its nose angled up by about 5 degrees, Hawkes says.

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某涡扇发动机数百小时的各飞行状态高空模拟试验证实，改造成功有效。

Following hundreds hours of altitude test of a turbofan engine at different conditions, it has proved that the reconstruct ion is effective.

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