搜索 - 科创

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一共7枚发动机，两个堵头飞，一个堵头喷管两头一起飞，一个喷管飞，一个嘭一声壳都找不到了，一个壳纵向炸裂，最后一个成功了。。。。顶峰推力大概3.7KG上图

直接上图发动机数据直径：20mm总长：140mm燃烧室长度：90mm材料：430或316不锈钢扩张比：9喉口直径2mm内衬石墨衬喉打算使用RAP或AP-HTPB推进剂，有什么不对的地方欢迎砖拍

PPR管直径30mm 长180mm 硝糖做燃料有延时剂开伞药（黑火药）虽然试验不算成功但是我在失败中积累了经验！我很感谢科创论坛兄弟们提供的宝贵的经验和资料如果没有这些...

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