第九百一十四章 立体防御(1 / 2)

     汉中初战,曹军在张绣长安营当道立寨固守之下便有过一番苦战,其后马超的司州营也给予了来敌一定的打击,再往后六马原之战,鄞县攻坚燕军节节抵抗可谓顽强,不过虽有折损之处但曹操对兵力优势的运用的却是恰到好处,即使张虎也只能将之拖延而无法进行太过有效的反击,米仓山之失更使得战局急转直下,一时间曹军声威大震,似乎汉中燕军随时都会面临崩溃之局!可张辽燕云军虽未能及时赶到鄞县,这支燕军精锐的加入战场对战局的稳定也起到了举足轻重的作用,燕军之中张文远素有善守之名,这第一日对汉中的进攻他的才能便显露无疑,依仗坚固的城池与燕军精良的器械,整整一日之间曹军竟无一人能够等上城楼,这在曹操的多年的军事生涯中绝无仅有。

     虽说首日攻击曹军不会全力尽出,实地观察对方城池来判断其守御的强弱之处的确比之地图沙盘来的更为直观,可有些实际军情却是一定要通过实战才能得到验证的,似曹操高顺这般精于攻城之人往往出手必先试探!但纵使如此,燕云军的强悍、张辽对兵力的协调以及器械营在城楼之上的威力都令曹操及一干麾下心中凛然,这张文远绝不愧善守之名,与城头居高临下燕军器械营的威力亦是成倍增加。

     汉中城墙高有六丈,比之雄关虎牢亦不过矮上少许,坚固程度恐怕并不在其下,张鲁十余年心血有一半花在此城之上,汉中又是富足之地,民心归附,这对城市的建设与城防的加强都是极为有利的因素!一个雄城的建成可不仅仅要求军队的强大,对经济实力亦有着很高的依赖。比如说如今的汉都北平,在刘毅不停的扩建之下,城墙绵延达百里之多,高有八丈,厚达三丈,俱是坚硬山石积累而成,随着器具所不停的发展,最后一段城墙甚至用上了这个时代的“混凝土”浇筑之法,端的是坚固无比,当然以此时的天下大势而论,北平的坚不可摧更多是大汉国力的一种体现,燕王可不愿在此做守城之战!

     六丈的高度似曹操这般的身材要十人相叠方可及之,强攻硬弩、滚木礌石自上倾斜而下比之平日威力何止倍增?而在有了这个高度差之后,器械营的轰天炮散射的威力就更加让人惊叹!除了张绣首站凭寨迎敌,子才对于器械营在大战之中是极为注意加以保护的,他的用兵之首便是未言胜,先算败,对于军中器械的威力有着极深的认识,攻城守城都会是这支特殊兵种有着最大发挥空间的所在,一旦燕军战局不利要退守汉中城,器械营就是他杀伤曹军士卒的杀手锏!

     当时张绣前往葭萌关下所带的士卒只是长安营的小半,器械营亦只有一半随军,一些大型的器械还因为道路和行军的原因并未携带,即使如此墨方神弩的亮相还是让敌我双方都是印象深刻,在几日的守寨作战之中,成易龙率领的长安营器械营立下了赫赫战功,如今有坚城高墙为凭,远胜城寨多矣,大型轰天炮加入战场又是长安、燕云二军的器械营并肩作战,日间它们在战场上起到的作用可想而知。

     在司隶之处面对韩张联军的攻势,刘毅一心想要将之歼灭便出了一手示敌以弱,与守城战之中极力限制了器械营的威力,可也足够让联军士卒有谈虎色变之感!此番汉中之处,张虎急需一场大胜来提升城中军民的军心士气,既然不能主动出击,守备之时就要给予敌军巨大的杀伤与震慑,器械营岂能还有留力的理由?在张辽的合理安排与调配之下,日间激战之时那铺天盖地而来的漫空飞石即使是身经百战的曹军士卒亦是从未得见,第一阵的冲锋之势竟就此彻底崩溃。

     器具所精心改良的巨型轰天炮有着两种发射方法,一为直射,将百斤以上的巨石抛射而出打击目标,无论是射程还是精度较之从前都有了很大的提高,平日训练之中个器械营的特等射手几乎可以做到在两百步范围之内弹无虚发!二则为散射,将几斤至十几斤不等的石块呈满天花雨之法弹射而出,它的优点在于打击面广,距离得到了最大的加强,但威力比之直射自然有所降低,可谓是各有千秋。

     不过此时的轰天炮可是架在高达六丈的汉中城头之上的,就算散射之时那些碎石携带凌空之势而下,那份重量与冲力较之平地发射不可同日而语,即便是最为轻巧的石块对冲击之中的曹军士卒而言都是致命的,且以此时曹军配置的盾牌厚度根本无法阻挡这些城头飞来的乱石!这还只是其一,为了攻击汉中城,曹军在器械的准备之上也是下足了功夫,井栏冲车等物数量众多,这些在攻击之中都是足可依仗的利器,但在燕军器械营巨型轰天炮的直射打击之下它们却显得那般的脆弱,一日下来光是井栏曹军就损失了十余架,多半都是在一百五十步到一百步之间被轰天炮直射而出的巨石所命中破坏的,本就是百斤重的石头,再加上那股冲力,凭它再如何坚固亦是难以低受!

     此处亦可看出张辽在指挥上的高明之处,虽说燕军操控轰天炮的特等射手可以打到两百步之外,但距离越近精准的程度会越位提高,当然也不能将敌军放的太近,和所有的抛射武器一样,燕军的轰天炮也是有着攻击死角的,一旦曹军可以冲击到五十步范围之内,它便无法对之做出有效的打击了,不过真到了如此近的距离,弓箭与滚木却又够得上了。张辽的做法就是将敌军攻城器械放近了再打,甚至与此中还玩了一些小小花招,一开始器械营并未将准度提到极致,而是待更多的井栏冲车进入精准打击范围之后才全力给予最大的打击!

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