- Rocket Electronics Info
Although this covers mostly pyro rocket electronics, there are many good bits of information relevant to water rockets, especially the altimeters section.
- Build Your Own Servo Controller
Here is a tiny PICAXE-08M board that's very affordable and should be fairly easy to adapt to make a simple servo controller for parachute deployment.
You could do all your configuration through it's serial port so there would be need for only minimal external components. You could also solder one of those small Assemtech G-switches directly to the board to detect launch.
- PL Premium in Oz
Water rocketeer Voytek Szapirko contacted us last month with the news that he was able to find PL Premium for sale at his local hardware store Bowens in Melbourne/Hallam for $6.99 a tube.Thanks for the tip Voytek! :) If you are from Victoria keep a look out at your store. We don't have the chain here in NSW, but hopefully other stores here will catch on with the need for PL.
- Retro Water Rockets from 1959
Apparently you need to wear a tie to launch these: http://books.google.com.au/books?id=KdwDAAAAMBAJ&lpg=PA54&pg=PA94#v=onepage&q&f=false