搜索 - 科创

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发动机材料 40Cr喷口及堵头材料：45#碳素最大外径58mm内径50mm燃烧室有效长度220mm壁厚2.5mm喉口9.0mm喉长4。0mm扩张比9.7扩张半角 12°收敛圆弧R35压缩段喉部扩张段R...

陪小孙子又放了个烟花，这个烟花只有发射级药柱，没有续航段。遗憾的是点火药多了些，还没烧完，工作的第一时间就给喷出来了，失败！小孙子说那三声蜂鸣好像有人在喊：“点——火——啦——”。对，点火前应该整个倒...

此贴为https://www.kechuang.org/t/77902做详细介绍最近因为学业为重，所以没发。（每天更新一点）简单介绍一下参数：采用knsu65：35，飞行高度1355m(在open r...

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