Water rocket continued. ( Umbrella type )

This is na new design of water driven rocket with an umbrella type parachute.

The launcher and fin and nozzle parts are existing and a bit improved.

For the launcher and the “motor” (= nozzle and adapter) you can find additional info here: https://www.printables.com/model/46571-water-rocket-and-launcher-platform-complete-instru

These parts have been proven to be working (see old video). The files and instructions for those parts are duplicated and adapted down here. I will upload a new video when I have tested the design together with my grandchildren.

https://youtu.be/JNP6PwhbNHg


The idea is that the the air pressure pushes out water in the rocket and so providing upward thrust.
The rocket is designed that it should stay vertically as much as possible, even at the top of the flight path, and falls back with the fins down (This is of course depending on the launch angle, center of weight and center of attack).
When falling down, the “umbrella” should open and functi