last updated: 4th May 2012, Sydney Observatory and Altimeter Flights

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Construction Index

Construction - Basic

Body

Ring Fins

Flat Fins

Nozzle

Nosecone

Construction - Advanced

- Robinson Coupling

- Splicing Bottles - Symmetric

- Splicing Bottles - Asymmetric Splice #5

- Reinforcing Bottles

- Side Deployment Parachute Mechanism

- Side Deploy #2

- Mk3 Staging Mechanism

- Multi-stage Parachute Release Mechanism

Construction - Launchers

Gardena Launcher

Medium Launcher

Cluster Launcher

Launch Abort Valve

Quick Launcher

How It Works

Drop Away Boosters

Katz Stager Mk2.

Katz Stager Mk3.

DetMech

Articles

Recovery Guide

Parachutes

How Much Water?

Flying Higher

Flying Straight

Building a Launcher

Video Taping Tips

MD-80 clone

Making Panoramas

Procedures

Burst Testing

Filling

Launching

Recovery

Flight Computer

Servo Timer II

V1.6

V1.5

V1.4

V1.3, V1.3.1, V1.3.2

V1.2

Deploy Timer 1.1

Projects Builds

The Shadow

Shadow II

Flight Log Updates

#119 - Sydney Observatory

#118 - Polaron G2 flight

#117 - Water and Pyro

#116 - Casual Flights

#115 - Shadow Flights

#114 - Reefing Chutes

#113 - Alternative Fuels

#112 - Looking Up

#111 - HD Cam flights

#110 - G2 Phase 2

#109 - More G2 flights

#108 - Pan Cam

#107 - STII Production

#106 - Bottle stretch thrust

#105 - Polaron G2 flight

#104 - Quick Launcher

#103 - Polaron G2 CATO

#102 - Servo Timer II

#101 - Foam Flights

#1 to #100 (Updates)

 

OVERVIEW
Water Rocket
A water rocket uses pressurised air to push water out from the back of the rocket to produce thrust.

Safety First
Read these Safety Guidelines first!

How do I build one?
You can find construction details for a simple water rocket in the Basic Construction section. For those who want more performance out of their rockets or build bigger ones there is the Advanced Construction section.

Air Command Latest News
This site is updated on a fairly regular basis. Check out the Flight Log Updates section for complete write-ups of the latest flights and experiments. For more frequent day to day activities you can visit our Blog.


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Navigating this site
The Site Index provides full lists of all the flight log updates, videos, diagrams and science & engineering data.

Where do I find out more?
The Links section provides many references to other water rocket sites, simulations and technical data.

You can also join an online water rocket forum and ask questions and share ideas with fellow enthusiasts.

Yahoo Water Rocket Forum
Forum for Australian Rocketry
(Australia's premier rocketry forum)

NSWRA
New South Wales Rocketry Association

Recent Blog Updates
Frequently Asked Questions
  • How do I attach a parachute to my rocket?
    See the Recovery Guide for many ideas how to make your rocket come back safely. Here are step-by-step instructions on how to build a parachute deployment mechanism.
  • How much water should I put in my rocket?
    This will depend on your rocket, but generally 1/3 is close enough to optimum. If you want a more accurate answer then here is a full article on how much water to use.
  • How much pressure can a 2L bottle hold?
    This will vary from bottle to bottle and you will need to do pressure tests for each particular bottle, but thin walled 2L bottles can hold around 120psi.
  • How can I make my rocket fly higher?
    Here are 30 tips you can try to get your rocket to fly higher.
  • Help! My rocket doesn't flight straight, what's wrong?
    Here are some suggestions on fixing common problems with a rocket that doesn't fly straight.

 



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