Rocket Science

Having seen what Chris and Kian had achieved with their rocket I attempted to build a traditional rocket made from a tube.

As seen in the photo most parts are 3D printed, from the left we have

1. a threaded nose cone with a fibre washer to seal the top of a tube

2. Next a threaded bung which will be glued into the tube

3. A 32mm domestic waste pipe

4. the bottom bung with a nozzle attached which is an aquarium air flow diverter

5. and finally fins to support the rocket for vertical takeoff

The following pictures are of individual sections.

After assembly I checked the rocket for the Center of Pressure and Center of Gravity.

I found this document very useful, it is very well illustrated.

With the the rocket filled with water I checked CG and CP, it was good. I filled the rocket with vinegar and pressed the baking soda into the hollow nose cone and shock vigorously, I found I had a frothing leak at the nose and the pressure from the nozzle was disappointingly low so I have to rethink sealing the nose cone to the body.

To be continued…….