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提问求助类话题必须提供充足的已知条件，介绍为了解决问题已经做的工作。凡可以通过简单搜索或查阅教科书解决的问题，不应提问求助。连续发布提问求助、懒惰型提问、上帝式提问等，将受到处罚直至封号。

初次发射knsb火箭的记录

Mr_清澜山主2023-08-03 IP:江苏

关键词

硝糖火箭

终于是放暑假了，作为一位准高一学生，暑假大把的时间都用来玩硝糖火箭了，这不刚借助开源火箭做了一个模型火箭，来到乡下空旷地测试，之前在家测过推力，和计算的大概差5~6N，也是能举起火箭了，它长这个样子：

装药大概三分之二，喷口与箭体连接处用泥土封起来，心想一烧就会变硬实，堵头也是用的泥土封顶。

一切准备就绪后，我将它放到自己准备的发射架上，准备第一次试射，然而....

studio_video_1691037017213.mp4 点击下载 ‎

失败了，点火失败，我等烟冒去后取回火箭检查，不知道什么原因，

于是我立刻着手第二次试射，这次我将点火头塞到箭体里面，防止无效点火，于是乎..........

studio_video_1691037174499.mp4 点击下载 ‎

它直接断头了.....我感觉好无语呵呵呵

它的遗体：

我两天制作的火箭就这样报废了，而里面的燃料燃都没燃一下，心情不太好喔

经过我一番思考，总结出一下几个问题：

燃料全填充，本来打算在中间开一个深孔，但忘了，不知这是不是原因
喷口与箭体连接处没有固定好，导致第二次喷口弹出，这我应该反思，因为如果药柱被点燃，喷口立刻被大量气体弹出，导致火箭航向改变，有可能会误伤自己或者撞向树木引发火灾，这一点下次发射前一定要解决
至于点火装置，之前试过也行，一点就着，但这次属实懵了，我看到药柱地部有黑色油状物，怀疑是第一次点火后留下附着在药上导致第二次点火失败

以上！这次初点火真是意外，希望各位提出宝贵意见指点一下哈

下次点火预定在8月7~8号

各位英雄再会！

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Mr_清澜山主

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2023/04/05注册，10个月24天前活动

喜欢航天！以后会从事这方面的工作，加油！！！

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