第一百八十二章 势穷的英国人
笔趣阁(biquge321.com)更新快,无弹窗!
平均航速也只能达到5-7节。而齐国那些飞剪型制的快速帆船,除非近于无风和直顶逆风,在各种情况下都要比蒸汽船航行的更快。</P>
四十多年前,在快速帆船的鼎盛时期,帆船令人敬畏的巨帆垂挂在甲板之上高度会达30多米,一张前下桁大帆的面积就有30平方之巨。</P>
除了方形帆之外,一般从头至尾还配有16张或更多的三角帆。尽管这些帆相对较小,但它们却具有更佳受风角度的特点。当船只处于迎凤航行时,这些挂在桅杆之间的三角支索帆便可提供大量风力。位于船首的三角帆和前中桅支索帆实际上是舵向帆,当舵工需要转向下风时,这些三角帆协助船头调向。配置在艉部的后樯纵帆和斜杠中桅帆可提供一个相反的风压,迫使前部调向。</P>
在正常航行中,为了确保稳定的航向,所有纵帆的偏转力相互抵消合为一股前进动力。悬挂在帆桁上的方帆可调墓到与龙骨成直角状,这样在顺风情况下可最大限度地吃风。当船只需要换向时,船长只要打破船首三角帆与后樯纵帆之间的平衡即可借助于风压和舵压,迫使这个庞然大物换向。</P>
一艘齐国典型的四桅方帆船上的桅杆、帆桁和索具加起来的重量超过了60吨,但它们比起老式木桅杆和欧洲的麻索具不知结实多少倍。作为一种传统,齐国高速帆船常用的控制帆桁和风帆的操纵索具是沿用吕宋地区的麻索具--吕宋诸岛因为拥有丰富的野生蕉麻,已成为南洋地区最大的麻索具产地。</P>
帆船高处的索具及其他笨重物件十分复杂多样,某些帆桁竟有30多米长,其中部直径达半米最大的帆翼,干燥时就有一吨重。如将索具中的金属线、索链和吕宋麻绳索头尾相接,它们将会绵延数公里。</P>
但万变不离其宗,齐国的快速帆船总要遵循最基本的设计原则。作为主动力源,三根巨大的主桅杆上挂有十余张方帆帆型设计成短而宽,这样既便于操纵又具有最大的受风表面积。</P>
不过,快速帆船纵有万般好处,但在操作使用起来却有一个较为致命的缺点,那就是为了控制船上复杂而巨大的风帆,需要为其配备更多的水手。一艘排水量两千吨左右的风帆船,从船长到最底层的水手学徒,定员超过三百多人,其中轮班的操帆手就多达近两百余。</P>
而同等规模的纯蒸汽船,所有操作人员加起来最多也不过五六十人,工作的重心也从风帆操作转至底舱蒸汽机驱动设备的运转和维护。</P>
随着船舶蒸汽驱动设备的发展和改良,在近二十多年,许多信誉卓着的商船为了准时、可靠地提供服务,开始大规模的采用蒸汽-风帆混合动力船。在航行过程中,主要靠蒸汽机,而把帆装作为辅助推进工具。它们只在机器有故障时才驶帆继续航行。</P>
而军舰,则在巡航时都靠风力驶帆航行,而在无风或风向不利时,才求助于蒸汽机。</P>
不过,已经进行了两年多时间的齐英战争,让装备了螺旋桨蒸汽战舰大放异彩,使的齐国海军在数场海战中都获得了前所未有的优势,或许在未来很长一段时间里,会刺激各国海军展开一波大规模的风帆战舰改蒸汽战舰的热潮,并由此传导至民间船舶当中。</P>
在这个时期,如果说有一种交通工具能改变世界的话,那么肯定是铁路。</P>
这种陆地交通利器的发明,使得缺乏港口的内陆地区也更紧密地与贸易中心、政治中心联系在一起,资本、人员、技术的交流更加快捷、廉价,国家在关键时刻能够动员的人力物力也比以前涨了不止一个数量级。</P>
没有这个玩意,那么农业社会就还是农业社会,囿于距离上的隔阂,整个国家处于事实上的分封制,即大小地主们作为皇帝的封臣、包税人及官僚预备役,事实上统治着占人口绝对多数的农民,效率低下、产出有限,这农业国家谈何兴起?</P>
而除了铁路外,排在第二的毫无疑问则是大吨位钢制轮船了。它具有航速快、载货量大、成本低、操作人员少等优点,还无视风向和洋流,简直就是为了贸易而生的发明。</P>
齐国两三千吨级钢制轮船甫一面世,就有大行其道的趋势,很可能会极大改变殖民世界的进程。如今他们已经在研制一款全新的八千多吨大船,如果成功的话,必将再度震惊世界,将整个海洋和陆地更紧密地联系在一起。</P>
“祈顺”号客轮在离开永安时,沿途遇到的船只便多了起来,其中就不乏钢制轮船,喷吐着滚滚浓烟,吭哧吭哧地航行在海洋之中,相错而
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