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《战狼 2》铁丝网能接炮弹?悟空问答网友:真可以

2017-08-01 15:12:24   中国经济网

但是,防护栅栏不是万无一失的,比如引信有可能正好撞在装甲车的栅栏钢条或钢丝上,美军评估装甲车的栅栏只有有60%左右的成功率,让RPG-7这种火箭弹失效。

那么,吴京用手持的方式拦截火箭弹,成功率会更低。首先ПГ-7В破甲弹的初速高达120-140m/s,最大速度300m/s,以120米计算,就是430公里的时速,要用手捕捉如此高速运动的弹丸,基本不太可能。就像男子网球的发球,时速400公里已经根本不可能接住。

其次,RPG火箭弹发射后有动能,吴京用手持铁丝网的方式,能否有足够的力量提供抵消火箭弹的动能,就存在疑问。具体的计算非常复杂,但是我们参照子弹打在防弹衣上能让人骨折,就能想象这火箭弹的动能有多大。因此吴京的剧情设计有艺术夸大的成分。

最后,RPG-7的火箭弹大部分引信都有4.5秒定时自爆。 电影中吴京拦住火箭弹后就给扔掉了,随后火箭弹就炸了。从这一点看,设计符合基本火箭弹的基本原理,合理。不合理的是拦截的过程,这得在平时进行多么严格的手工抓导弹训练,才能有吴京这种100%拦截成功的概率?不过,我们既然是看电影,就不必较真,封吴京一个“人肉铁穹”或“徒手标准6”,也都未尝不可。

答主:@白虎堂(军事媒体人 军事问答专家)

《战狼2》中出现了冷锋(吴京)使用防盗网拦截炮弹的画面,这样的场景事实上就和战斗机飞行员一边开飞机一边抓住飞行中的子弹一样,充满了魔幻感,但是似乎又不是完全不可能实现的事情。

站在事实的角度看,高速飞行的炮弹/火箭弹具有很高的动能,人物要使用防盗网去拦截,难度本身是很大的,而且也未必反应得过来。即使防盗网堵到了炮弹,人也可能会被带飞,甚至可能直接爆炸。

但是凡事都有特殊情况,假如炮弹的敏感度没有那么高,或者说可能存在哑火的情况,然后炮弹又刚好处于飞行距离末段,其动能已经逐渐被重力势能所替换,那么这个时候人物使用防盗网去拦截强弩之末的炮弹,是有可能取得成功的。当然这种情况少之又少,具体成功的概率就不必要去算它了。

需要指出的是,《战狼2》毕竟是一部电影,其中的情节设定,主要还是为了追求票房,所以我们不需要过于较真。剧组成员在分析防盗网拦截炮弹一幕的时候,肯定也考虑到了合理性的问题,应该说从电影制作的角度来讲,它并不算是很荒谬。

实际上当我们观看电影中的武打场景的时候,我们也很容易感觉到其中的夸张成分,这种格斗效果在现实中似乎是不可能出现的,但是导演为了博取眼球,还是会尽可能使之夸张化。这是商业诉求的体现,不必过于深究。

同样的情况,也出现在速度与激情系列影片中,大家一定还没有忘记坦克追逐跑车和潜艇追逐跑车的画面,事实上有军事知识的人都知道,潜艇和坦克是肯定追不上跑车的,跑车的速度可以达到每小时几百公里,而潜艇和坦克最快的也就每小时六七十公里,别说是追,就连跟都别想跟得上。

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