Launching a camera on my 3L water rocket at the scenic Henbury Meteorite Crater, NT. Unfortunately my rocket, all too eager, added to the nearby craters when the parachute broke away.

Update
    My updates have been slow and irregular but I have no intention of leaving Water Rocketry. At the moment I have been learning and working on equations for supersonic flows in a Converging-Diverging Nozzle. I hope to begin testing these equations by making and testing C-D Nozzles.
    I want to rebuild my large Water Rocket again.
    I also want to make a Water Rocket Glider and write a page about wings and lift force.
    I intend to build an idea I have for a Staging Device.
    I will also add a page on the safe use of sparkler rockets (Yes, there not Water Rockets but I find them as another enjoyable form of Rocketry).
    Since my Timer Recovery System was destroyed in the video above, I will restart my work on the Altimeter Recovery System with a new design.

    I'd like to thank Joseph and Obat for their kind comments in the Altimeter post. The reason I made this site was so others could learn and enjoy Water Rocketry as much as I do. I hope this site will be helpful to people and I will try to give more updates on my developments in Water Rocketry.

Recently i built a Test Stand which could hold a water rocket so that it could be analysed by a high-speed camera (and hopefully a load cell in the future).
Below is a video of three different nozzles being tested.

The intention of the test stand is to measure flow rates and analyse the effects of different nozzles. Because the tests are static, the water is not held down like it would in flight so the water is free to splash up, allowing some air to escape before the water. Despite this, this stand will allow me to test and analyse the effects of air/water mixing and De laval nozzle designs for water rocketry, experiments I hope to begin these holidays.

    This video show the recent testing of a new avionics bay, onboard camera and a spiral nozzle.
    The Avionics bay is lighter and a better lay out then the previous design, but once again the altimeter did not register the flight. So some more testing wil be made.
    The Onboard camera worked well but placing it on a 1.25L rocket made the footage erratic.
    The Spiral nozzle seemed to work well and displays a good exhaust plume.

    I recently obtained a StratoLogger SL100 from PerfectFlight.
http://www.perfectflite.com/sl100.html
    Because this altimeter came with two outputs for recovery I started to design a new recovery system. This new recovery system would use the two outputs to first deploy a parachut at apogee the the second would open the parachute at a preset altitude. More on this in the Parachutes page.

    The recovery system would also be made as  aerodynamic as possible. Knowing that the most aerodynamic shape for subsonic flight was the Elipsoid with a length 2x its width, I put the values into this 125-nosecones excel spreadsheet.