搜索 - 科创

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箭体：长60cm，内直径3.4cm螺旋纸管发动机：外径2.5cm 2mpa ppr水管长13cm 重结晶knsu 喷口直径7mm 堵漏王加钢钉做的喷口和堵头尾翼：5mm KT冷板鼻锥：卡纸卷的...

上星期的失败，迎来了今天的挑战 [upload=2] 长40厘米重100g 尾翼修改喷头用农机胶+爽身粉（超赞）燃料从断面燃烧改为中空燃烧无载重飞行试验 Good luck to me!

之前做了几个测试的，在地上飙了几米……这两天做了一支正式的下星期就要上天了，不过我按ABC那模版做的：一样的管子，用了10g火药，截的一样的长度，结果，结果堵头做好（按要求）把药压进去，然后就全满...

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