It has been a while since my last post due to personal reasons. Since building the Hyperion II rocket would take me a considerable amount of time, I decided to buy a two-stage water rocket from Antigravity Research Corporation.

I tested the rocket during Christmas with disappointing results. I do not know what I was doing wrong, but I could not get pressure to build up inside the rocket. The rocket always leaked thus losing all the water and air located inside the pressure chamber (see video below).

Even if I would manage successful liftoff the thrust of the second stage would not be enough to lift the Raspberry Pi camera. Therefore, I will scratch this idea and go back to building Hyperion II.