第四十章 “东岸之鹰”号
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王启年仔细观察着这艘船只，17世纪的风帆船就有这么多学问、这么多讲究，让他这个21世纪的海军士官也颇为感慨。
此时“东岸之鹰”号已经出了港口，目前在外海航行。于连看了看桅楼上的飘带，大声命令道：“风向北偏东15度，逆风；左转舵，航向北偏东30度！”
“明白！左转舵，航向北偏东30度！”32届航海生米特宁从甲板天窗上探出头，大声重复命令。
“升后桅上三角帆！”
“明白，升后桅上三角帆。”
……
“东岸之鹰”号顶着风朝北方行驶。其实逆风航行还真是一件挺有技术含量的活，此时欧洲的水手们在实践中摸索出了逆风航行的技巧，他们称做“抢风航行”，但是对于具体的原理可能要到18世纪才有人能够准确地解释出来。
穿越众里虽然理工科人才不多，但是对于这种中学物理级别的受力分析问题还是能够轻松解答的。航海学校当时请了一名前中学物理老师来讲课，他在仔细分析了船在风和水流共同作用下的受力分析后，向大家指出，如果船在逆风航行时与风的方向间存在一个不大的夹角，那么船就能够在风力、船活动龙骨产生的水流反作用力下的共同作用下以一个很大的角度以“之”字形向前航行。当然这种方法极大地增加了航程，不过在气候复杂多变的海域抢风航行时还是很实用的，属于航海基本技能之一。
250吨的“东岸之鹰”号以3节的航速缓慢前行，此时炮手们也开始忙碌了起来，接下来将进行行船间的炮击训练。此时海面上风浪不小，船只颠簸地厉害，在这种情况下火炮射击自然没有什么精准度可言（当然风浪不大的情况下精准度也很可怜）。不过王启年只是想让大家熟悉一下海战的感觉，至于海上的射击技巧，这还需要大家在经过大量实弹射击后再总结经验。
“东岸之鹰”号除了艏艉各安装了两门12磅炮以外，在舯部甲板下两侧各安装了8门火炮。其中：24磅火炮2门、18磅火炮2门、12磅火炮4门，全船共20门大小火炮。以“东岸之鹰”号250吨的排水量来说，安装20门火炮、尤其是口径还不小的20门火炮本来是一个很大的负担，一个搞不好很容易就会像1628年瑞典的“瓦萨”号一样因重心不稳而沉没。
不过这一切在有了轻便的钢制舰炮的情况下就完全不同了。瑞典人现在肯定很后悔，他们要是晚几年再完工这艘花费了6万多镑巨资打造的战舰的话，可能就会因为可以从穿越众这里买到轻便的钢制舰炮而使“瓦萨”号幸免于难。
安装了20门火炮的“东岸之鹰”号仍然稳稳地航行在颠簸的南大西洋洋面上，随着炮兵出身的代理船长陆铭的一声令下，船艏的两门12磅钢炮首先打响，效果…呃…效果很不理想。王启年举着望远镜在预定弹着点附近看了半天，都没等到炮弹落下。
陆铭不为所动，挨个走到每一门火炮身后，大声发令“开炮”。剩下的18门火炮依次发射，结果有好有坏。发射完毕的炮组开始将火炮进行复位，这层炮甲板建造的时候特意留了些倾角，方便炮手们在火炮发射后能更省力、更迅速地将火炮复位。
“别太着急。”王启年看着陆铭笑着道，“我们的炮手习惯了在没有颠簸地炮台上打炮，这海上第一次炮击训练就打成现在这个模样已经算是不错了。我了解我们的小伙子，给他们一些时间训练，适应了之后，精准度很快就会上来。”
“我本来也没太担心。”陆铭也笑着说：“这年代战舰交火都是在离着很近的地方双方侧舷对侧舷，开火互殴，间或还有一些跳帮厮杀夺船的路数，就是因为这射程和命中率都实在是太可怜，不得不这样而已。练肯定是要再练的，不过我们现在炮手满打满算才一百多，水手也就航海学校这么些，是不是少了些？”
对于陆铭试探性的问题王启年没有立刻回答。这牵扯到的事情比较复杂，甚至涉及到了海陆之争，他一时也没法回答，只能打个哈哈掩饰过去。
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