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国产ARJ21-700新支线飞机赴北美完成自然结冰试飞

2014-04-28 15:12:45   环球网

试飞工程师确认了气象数据的符合性,中国民用航空局局方试飞工程师徐骏驰说:“刚开始结冰速率比较慢,最后的2分钟时间里,冰形厚度迅速增加,很快就达到了2英寸,符合了进行操稳试飞的条件。”

赵志强赶紧通过飞机上NTI公司飞行员申请在5000英尺的高度区间让ARJ21-700飞机做自由飞行,“不到1分钟,机组就获得了空管的许可,”赵志强说,“这样的决策速度在国内是难以做到的。”

“为了防止冰脱落,我们打算在结冰云层中执行操稳试飞,但是,飞机结冰的速度太快了,发动机脱冰产生的振动值也在持续升高。”赵生说,“为了保证安全,我们还是决定脱离云层再执行操稳试飞。”

ARJ21-700飞机的确是得到了大自然的眷顾,飞机脱离云层后并没有遭遇温度升高的逆温层,冰牢牢的附着在飞机的非防护表面,由于受油量的制约,赵志强必须将所有试验点的操稳动作一次性准确无误的完成,没有任何可以重复的余地……

试飞工程师一旦确认了试飞结果,为了节省油量,试飞机组马上爬升高度返回温莎机场,途中不能再有任何的机动动作。

“然而,飞机上没有完全甩落的冰成为新的难题,我们加大了飞行速度,因为带冰飞行增加了飞机的阻力,同时逆风也增加了燃油的消耗。”赵志强说,“那的确是一场惊心动魄的飞行,庆幸的是设计人员在计算油量时完全考虑到了这些情况。”

温莎当地时间18时28分,ARJ21-700飞机安全降落在温莎机场,为ARJ21-700飞机历时4年的自然结冰试飞画上了圆满的句号,在此之前,中国在商用飞机结/防冰领域的研究从来没有走得如此深远。

走在清冷而又孤寂的温莎街头,赵克良不无感慨的说,“选择坚持何尝不是一种自信的表现……”

根据数据显示,在累计105天(2011年-2014年)的自然结冰试飞期间,ARJ21-700飞机结冰飞行时间仅有33小时47分钟,其余的时间都在等待。国内4年没有完成的试飞,在加拿大10天就结束了,这组数据直接反应了我国发展商用飞机产业所面临的局限与挑战。

“跨国‘追云’试飞是中国商飞公司成功利用全球资源进行民机试飞的有益尝试,”中国商飞公司总经理贺东风说,“我们形成了一套符合国际规范的管理程序,是我国民机研制历史上的一次成功创新和尝试,对创新我国民机试飞组织模式等具有积极的意义。”

虽然,利用全球资源进行商用飞机的研制已经成为不争的事实,但是,“限制飞行”的事件也再次提醒国家产业政策的决策者,任何一个航空强国都不会放弃对本国航空产业竞争力的扶持。

2014年4月28日,ARJ21-700飞机结束跨国“追云”之旅降落在阎良机场,航空人心中固守了半个世纪的祈盼从来没有像现在这样如此的接近现实!自然结冰试飞的成功更引发了人们对于民机产业发展的思考,4年的艰难探索,3万公里的环球飞行,这些在实践中积累的经验必将提速中国民机试飞速度。(完)

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