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八百零九章 牛刀小试(白银盟主11)

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在大海里航行和在安大略湖里航行真不是一个概念,当文图拉的码头消失在视线中,洪涛的小心肝又很不争气的绷紧了。最新地址ltxsba.xyz他不停的去用无线电接收天气预报,生怕有什么气候变化。都说大海是无风三尺浪,文图拉外海已经算是非常平静的海面了,但毕竟是大洋不是海湾,说是平静,但洪涛怎么看怎么不淡定。

和洪涛这种心神不安的新人比起来,伊丽萨就镇定多了。她戴着太阳镜、穿着救生衣站在舵轮后面,两只脚分开与肩同宽,就好像钉在了甲板上,不管船体如何俯仰、横摇,都是纹丝不动。那一头短发从背后望去,和一个小伙子无异,要是再加上一顶船长帽,活脱就是一位叱咤四海的海盗船长。

在大海上航行,哪怕是沿岸近海航行,也不是顺着海岸线溜边儿,而是要按照海图的标示,找到一条没有暗礁的正确航线。这个本事洪涛考二级帆船船长时学过,但是速度慢很多,而且他驾驶台的海图桌边根本就站不稳,时不时就被甩到沙发上去了。这时才体现出来保险带的作用,要不是保险带把他牢牢固定在海图桌上,他说不定就被甩出船舷了。

帆船在海中航行的时候,落水是一件非常危险的事情。因为几秒钟之后你就会被周围起伏的海浪遮蔽,很容易让帆船上的人找不到你的踪影。由于在大海里是无法精确定位一个人的位置,即使帆船绕着圈子找你,也要转一个很大的弧线。到时候你还能不能获救,真得看人品了。所以说能不落水千万别落水。这是帆船运动中最危险的一个环节,一般出现死伤。都是由于落水造成的。

“亲爱的,把三角帆升起来,我们看看你这条新宝贝可以跑多快!”这回率先发疯的不是洪涛而是换成了伊丽萨,洪涛觉得主帆半帆就已经很快了,可是伊丽萨坚持要满帆,这时又要加上三角帆。

“咱们又不赶时间……要不就用三角帆吧……”洪涛还不好意说自己怕了。

“哈哈哈哈……我最喜欢你胆小时候的样子,这样才最可爱!放心吧,我还有瓦尼萨,现在我还不想死!”伊丽萨看着洪涛那个德性笑得很畅快。一把揪住洪涛的救生衣,把他拉了过来,然后狠狠亲了一口,又把他重重推开。

“疯娘们!算我倒霉!”洪涛觉得自己还是不太了解伊丽萨,难道她还有第三种变身?

“哦,风速上来了,我们是左舷受风,风速十七节!亲爱的,把球帆升起来。咱们要进入高速航行了,看看会不会达到20节!”随着海峡群岛的影子消失在船尾,海面上的风逐渐大了起来。这时海浪的头部已经变成白色的水花,按照普通的说法。这就算是大浪了。

十七节风速是个什么概念呢?就是每小时风速31公里多一些。这种程度在陆地上差不多算4级风吧,应该不算大,也就是把小树刮得摇晃摇晃而已。但是在广袤无垠的海面上。风是没有遮挡的,所以感觉起来要比陆地上强一些。再加上船行驶的速度,洪涛觉得都有点七八级风的意思了。

“遵命。升球帆……”洪涛已经没兴致再和伊丽萨辩论到底该不该如此全速驾驶的问题了,她是行家,拿着a级帆船执照,自己才是个b级执照,连驾驶这种大帆船的资格都没有,还是相信专业人士吧。

“好了,别担心亲爱的,快来看看,我们已经跑到25节了,你买了一艘好船!”伊丽萨这回比较温柔,把洪涛拉到身边,让洪涛抱着她的身体稳稳站住,然后指着航速表让洪涛看她的本事。

“为什么我们比风速还要快?而且还是侧风?”洪涛抱着热乎乎的身体,心里稍微安定了一点儿,此时他也度过了最初的恐惧,至少是对这艘船稍微有了点信心。

“这是静压力的效果,帆两边的空气流过速度并不一样,所以就会产生静压力。这种静压力会给帆提供额外的推力,你知道机翼的原理吗?”伊丽萨给洪涛简单解释了一下为什么帆船要比风跑得快的原理。

“哦,我明白了,这是流体力学啊,伯努利原理,原来帆还有这个功能!确实,你一说我才发现,满帆的横截面确实像竖起来的机翼。”洪涛对这种东西理解得很快,瞬间就明白了这个道理,想一想还真是那么回事儿。

“想不想当一会儿船长?”伊丽萨鼓励的回头亲了洪涛一下。

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