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This is the one the moderately intact prototypes that will be entered in the “2005 1 Litre International Water Rocket Competition”. This, or something like it will be entered in the unmodified stock class. It’s made from the stock bottles at the top of the page. I still have a little bit of fine-tuning to do on this to make it backslide because at the moment it makes an incredibly effective lawn dart. At the moment it’s flight times very between 12 and 15 seconds, so if I can slow it’s descent a bit this should be a contender. When this thing lawn darts it sounds like an incoming artillery round with a high pitched whistle followed by a loud thudddddd.
The second image is a close up of the fin unit, which was designed to be reusable. It simply slides on and off the bottle and is held on with tape. |
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