Water Rocket Parachute Enclosure & Fins (Theobald 1)

thingiverse

The attached files can be used to build a water rocket. You need to have a PET bottle of the right size (especially the right diameter of ~82mm) so that you can clip the rocket tip on the bottle. You can for example use “Lift” or “Mezzo Mix” 1l bottles from Coca Cola Company. The two shells contain a parachute, which will unfold when the rocket is falling back to surface to ensure a soft landing. Often you find simple rocket tips in instructions that do not work properly and deploy the parachute as intended, this one works  You can build the rocket as found as in this tutorial: (google will help you translating it to English) https://www.heise.de/ratgeber/Kaltwasserrakete-mit-Startrampe-2663730.html Here you can find special threads, that work out perfectly: https://www.raketenmodellbau-klima.de/Raketenmodellbau/Wasserraketen/Wasserraketen-Anschluss-Adapter.htm?shop=raketenklima&SessionId=&a=article&ProdNr=6043&t=23&c=34&p=34 Have fun! :)