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第90章 私下运作(1 / 2)

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前文说到,刘纬发现第一款热气球的两个致命缺陷,与旁人的兴奋与激动形成强烈反差,是一点也高兴不起来!

一直以来,刘纬投入巨资,耗费许多精力研究热气球,是干嘛用的?可不是为了旅游观光,而是打算发挥其军事用途!可眼前的热气球,虽然试飞成功了,却距离理想中的目标,相去甚远!

首先,这款热气球腾空的高度太低了,可能是负重仍然很大,上升到十几丈的高度,就再也飞不起来了!当然,这个高度,对于第一次实现飞空梦想的人类来说,已经是长足的进步,在现场看来,也的确十分壮观,但用于军事,却远远不够!

要知道,像潼关和虎牢关这样高大的关墙,都有十丈高,热气球却只能飞到区区十几丈高,意味着一旦它出现在战场上空,可以被敌人的弩箭轻易击中!那么大个气球,目标如此明显,傻子都能射中,而这种热气球,最怕的就是漏气,哪怕被射穿一两个窟窿,也是致命 的伤害!

其次,就是这热气球没有驱动力,造成的后果便是升空以后,完全依靠风的力量才能行进,风往哪边吹,就往哪边飘,要是没有风,或者风向不对,就不能使用,大大限制了其作战用途!

因为技术还不够成熟,打造一个热气球耗费的资金可不少,成本很贵!要是它只能顺风飘动,便意味着一去不复返,几乎没有回收利用的可能性,除非中途风向改变,又把它吹回来,不然只能是一次性使用,这个成本消耗,性价比实在太低了!

热气球不能返航,便意味着每次使用过后,十有八九会降落在敌国境内,不仅会被敌人缴获,还得搭上几个士兵被俘,凶多吉少,这完全违背了刘纬的使用初衷,因而,这款热气球似乎只是中看不中用的花架子,他当然很失望!

可能有的朋友会说,这两个缺陷,难道就不能通过改进而弥补吗?飞得不够高,就增大气球体积,使热力充足,不就能飞得更高吗?没有驱动力,那就加上螺旋桨和飞行舵呗,不就能控制飞行的方向了吗?

没那么简单!虽然现在,刘纬已经获得了韧性极强,气密性上佳的致密棉布,可它毕竟还是棉布,倘若无限增大气球容积,质量上势必大打折扣,气球造得越大,越容易出现撕裂破洞的情况!

还有,螺旋桨和飞行舵您能想到,刘纬自然也能想到,可问题是,拿什么来驱动呢?人力驱动吗?刘纬现在,还没发明马达呢,靠人力驱动的螺旋桨,能有多大的动力?能让那么大个气球转向,或逆风而动,得多少人力?气球上,又能装几个人?

因此,要想让热气球能实现军事作战和侦查的用途,技术还要继续更新和进步才行,有了更结实的材料,以及动力马达,这热气球或许才有可能出现在战场之上!

可问题是,如果刘纬真能实现这样的突破,连高强度材料和汽柴油机都发明出来了,还用热气球吗?他完全可以造飞机了!是热气球更适用于战场,还是飞机更适用于战场?可想而知,肯定是飞机呀!那还研究热气球干嘛!

这才是刘纬失望的根源所在!这热气球,明显就是个不伦不类的过渡产品,早晚会被淘汰!

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