punisher_j 2014-1-4 09:53
俄罗斯的空中猛兽米28武装直升机[70P]
[size=16px][b]俄罗斯的空中猛兽米28武装直升机---喜欢的话帮忙点一下右边的红心支持一下呀![/b][/size]
[size=16px][b]全天候专用武装直升机,北大西洋公约组织给绰号为“浩劫”(Havoc)。于1980年开始设计,原型机1982年11月首飞,90%的研制工作于1989年6月完成,后来第3架原型机参加了巴黎航展。1992年后少量生产,至2007年尚未批量生产或装备部队。米里设计局还曾提出一种伞兵/作战改型,编号米-40。米-28N是莫斯科米尔直升机制造厂为进一步竞争俄罗斯战斗直升机计划,而研制的夜战改型。由于俄军经费不足等原因,米-28研制工作长期处于停滞状态。
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米-28是苏联米里设计局研制的单旋翼带尾桨全天候专用武装直升机,绰号为“浩劫”(Havoc),1980年开始设计,原型机1982年11月首飞,90%的研制工作于1989年6月完成,第3架原型机参加了巴黎航展。米-28A具有惊人的超负载能力,机载光学瞄准系统性能良好,具有很好的操纵性,任何一位技术不够娴熟的机组成员都可以很决驾驭;生存能力很强,驾驶座舱和机载设备可以抵御敌防空火力的攻击,完全符合西方关于“反**直升机的作战标准”,在远距离和十分复杂的地形,先敌发现和先敌打击;还具有20-米以下的超低空突防能力。
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米-28放弃了米-24许多独特的设计,例如能装载8名步兵的运兵舱、气泡形风挡等。它的结构布局、作战特点都与西方流行的设计,尤其与AH-64相似,因此被西方戏称为“阿帕奇斯基”。76年开始研制,82年11月第一架原型机首次试飞,87年开始投入使用。
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米-28使用了大量先进技术。在机身中部装有小展弦比悬臂式短翼,前缘后掠,主翼盒结构用轻合金材料制造,前后缘采用复合材料。机身为传统的全金属半硬壳式结构,机身比较细长。在驾驶舱四周配有完备的钛合金装甲。两片桨叶的尾桨安装在垂直安定面的右边。不可收放的后三点式起落架。纵列式前后驾驶舱布局,前驾驶舱为领航员/射手,后面为驾驶员。驾驶舱装有无闪烁、透明度好的平板防弹玻璃。座椅可调高低,采用了能吸收撞击能量的座椅,座椅两侧和后方均装有防护装甲,风档和座舱之间的隔板均采用防弹玻璃。米-28可直接用安-22和伊尔-76运输机运输到指定作战地区。
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值得一提的是米-28的旋翼系统。共有5片桨叶,采用半刚性铰接式结构,转速242转/分。采用具有有弯度的高升力翼型,前缘后掠,每片后缘都有全翼展调整片。材料为玻璃纤维D型翼梁和具有Nomex蜂窝夹芯的凯芙拉(Kevlar)材料组成。桨叶前缘有钛合金防蚀条,桨毂也为钛合金结构。其旋翼桨毂不需上润滑油,旋翼系统的橡胶金属结构取代了传统的机械铰接结构,自动倾斜装置和尾桨上只有一个润滑嘴;所以在维护方面比较方便、经济。米-28的机动性也很好,能够做翻跟斗等动作。
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米-28N采用不可收放的后三点式起落架,皆为单轮。米-28N的座舱装备有全装甲的机舱玻璃,它能承受直径为12.7毫米**的直接射击和直径为20毫米的破片的冲击,而且,包括主减速器在内的所有重要部件和系统都有防弹屏蔽。米-28N采用的机组被动防护系统,包括带有减震器的起落架,它能保障直升机在以每秒12米垂直速度紧急着陆时的生存性,这个指标和AH-64一致。串列双座布局,领航员/射手在前,正驾驶员在后,座椅可以升降。
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