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疑为歼-20配套零部件开始量产 一年供货达200套
2016-03-22 10:29:48 利刃微信公众号
此图作者@ericsakura:根据网友分析制作的20侧弹舱工作原理3D示意图
但是,内置弹射机构有一个问题就是可靠性不佳。由于弹射架承受本身和导弹传递的各种载荷,在静、动和热载荷的综合作用下,能否将导弹按预定的参数正确弹射出去就成了一个需要解决的问题。从内置弹舱中和外挂架上进行武器系统的发射和投放试验是隐身战斗机飞行试验的最后阶段的难点课目之一。为了确保这些武器能安全和有效的投放,在2000年至2004年的5年间,美国军方组织了4架F-22试验机进行了近100次武器和外挂载荷分离试验,包括70次导弹实弹发射试验。用以确定F-22A的武器发射包线和外挂载荷投放包线,在这些实验完成之后,2005年F-22战斗机就立即在美军中开始服役。
实际上,中国国内主要战斗机的导弹弹射机构全都采用外挂式,其中114厂,014基地等科研生产单位已经逐步形成了某些型号外挂导弹弹射装置的自主设计和生产能力。但歼-20内置弹舱弹射机构国内还是第一次研制。通过报道中提到的,“2D电磁换向阀在单机试验、地面系统试验、空中挂飞试验、空中飞行试验中均稳定可靠,表现出了极高的性能指标与可靠性,得到了供方的充分肯定”的内容,从侧面肯定了歼-20的内置式弹射装置可靠性已经取得了比较满意的结果。对于四代机来说,很多时候都是采用超视距攻击的方式,即在世俱范围外,雷达锁定敌方飞机目标后,通过发射弹舱内部的空空导弹的方式来对敌机进行击落。如果弹射挂架可靠性出现问题,那么后果将会十分严重。首先可能会造成空空导弹发射不成功,导致失去攻击窗口。瞬息万变的空战中,贻误战机就意味丧失了作战的主动权,面临被敌方战机发现击落的风险。其次,可能出现导弹在舱内殉爆,误伤载机的事故。这样的结果显然是不可接受的。所以导弹弹射挂架的高可靠性是发挥空空导弹威力的基础。
相信,未来歼-20在导弹弹射挂架高可靠性的前提下,一定可以在空中发挥PL-12等新一代空空导弹的优势。(来源:利刃军事微信公众号)
责任编辑:张海潮 CM013
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