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惊心动魄!现场总指挥讲述国产飞机10级大风中试飞

2018-04-30 21:21:07    新华网

冰岛常年大风,7级风的目标更是随时可见。可今年,哪怕出现了暴雪,也没有伴随着常有的大风。3月17日,ARJ21飞机在凯夫拉维克机场上空盘旋了一圈又一圈,希望能够等到突然降临的大风。遗憾的是,大风并没有降临。随着这一次的无功而返,试飞团队距离原定的返程时间只剩下了不到3天,为此,团队成员不得不去续签了签证,而他们甚至不知道,要在续签申请上的日期一栏填多久。

  记者:各种牵挂都来了?

  赵鹏:烦躁,灰心,失望,可能我等不到了,觉得我们可能和在国内一样等不到那么大风,我们说2014年是追云去。

  记者:这次是等风来?

赵鹏:这次是等风来,因为我们没法儿追风去,我们只能等风来,这个等还真是我们体会,这个等真是比追煎熬。

3月23日,冰岛出现了一个月以来的第一次极光,试飞团队也终于等来了他们的好消息。冰岛机场的管理人员告诉他们,3天后,将迎接最高将近10级的强烈大风。

按照往常的习惯,团队会在9点钟出发,10点钟正式试飞。但是那天还不到8点,他们就已经整装待发。让团队如此紧张的原因,依旧是冰岛捉摸不定的天气。根据当天的气象预告,中午之后的风速将超过设计团队给出的试飞极限值。这就意味着,在天气变化之前的每分每秒都极其珍贵,然而,机组在停机位等待了半个小时,也没有得到塔台批准起飞的指令,此时,留给试飞团队的时间仅仅只剩下一个半小时,意味着他们需要在这一个半小时之内,完成6次有效的侧风起降。

  完成大侧风试验

3月26日上午9点整,当试飞机组终于得到允许起飞的指令时,天空中出现了一道绚丽的彩虹,伴随着这个意外降临的惊喜,试飞机组驾驶着ARJ21迎风起飞。在强烈的侧风冲击下,飞机的机身开始晃动,地面团队成员的心也随之提了起来。决定性的一刻即将到来,当ARJ21像“螃蟹”一样缓缓的降落在了凯夫拉维克机场,监测中心的成员们激动不已。

赵鹏:我在指挥员坐席,拿着话筒,这个投影的墙上就是实时变化的风向风速和两分钟的平均风向风速,还有不停地一秒钟报一次的,风向多少度,风速多少节,风向多少度,风速多少节,整个这一百多号中国人没有一个闲着的。

从第一次起飞,到最后一次着陆,试飞持续了86分钟。冰岛大侧风包线扩展审定试飞的成功,标志着ARJ21-700具备适航规章要求的全部气象条件下的安全运营能力,对拓展飞机的运营环境、提高飞机的市场运营效率具有重要意义。

侧风试验,指在侧风环境下飞机起降时的操纵稳定性和动力系统稳定性测试。飞机在逆风条件下起降,使用的跑道长度最短,还可增加安全裕度,因此机场跑道方向一般与当地盛行风向平行,但风向不可能永远顺应人意,侧风会增加飞机起降难度。

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