比F-22轻5吨! 歼-20就是靠这技术超音速的
文章来源: 中时电子报 于
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《兵工科技》杂志近日一篇文章指,中国大陆新型隐身战斗机歼-20体型比F-22略大,居然还能比F22轻5吨!这数字可说惊人,歼-20就是靠着新技术来保有超音速巡航能力。
歼-20空机重量成功控制在15吨级,远远小于美军F-22战斗机19.7吨的重量。比较起来,歼-20轻了近5吨,对战斗机来说,减重至关重要,因会影响到战斗机的性能,及能搭载多少设备。
据新浪军事报导,小飞猪观察指出,为什么歼-20能比F-22还轻了近5吨?《兵工科技》指出3主要原因:1.3D列印技术。2.液态金属电磁约束技术。23金属超塑成形技术。应用新材料和加工技术是歼-20空重远低于F-22的核心原因。而F-22是在90年代设计制造,当时没有这些技术或是处在初步研制阶段。
歼-20从多方面进行减重,3D列印技术的应用及新材料的使用,节省零件连接件的重量,可能让歼-20减重2吨以上。歼-20没有航炮,可以再减重几百公斤。DSI进气道优化设计,也可减重几百公斤。目前还没有向量喷口装置,或可减重几百公斤,没有降落板减重几百公斤,全动垂尾减重几百公斤,设计超薄的机翼减重几百公斤,航电设备集成化程度提高再减重几百公斤……。这样算下来,歼20比F-22轻了近5吨,也算是正常现象。
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