Latest Update: 21st October 2023 - Day 226 to Day 230 - Various Experiments

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You can find construction details for a simple water rocket in the Basic Construction section. For more performance or building bigger ones there is the Advanced Construction section.


Articles covering a wide variety of topics. These include tips on how to get your rocket to fly higher, how much water to use, folding a parachute and much more.

Flight Logs

A full listing of all of Air Command flight day reports, including photos, videos and experiment results.

How It Works

A set of articles that describe in detail how various principles or rocket mechanisms work. Includes things like drop away boosters, staging mechanism designs and parachute deployment.


A set of articles containing various rocket related electronic designs. This includes parachute deployment electronic timers and flight computers.

Project Builds

A list of all the major rocket project build logs from Air Command. Each build log contains detailed information and photos about how each rocket was built, tested and flown.

Rocket Fleet

A detailed specification list of all Air Command water rockets built over the years. Includes dimensions, weights, pressures used and all the variants built of each rocket.


Read these Safety Guidelines first!


NSW Rocketry Association (NSWRA)

Includes latest launch schedule

Recent Updates

Frequently Asked Questions

How can I make my rocket fly higher?

Here are 30 tips you can try to get your rocket to fly higher.

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.

My rocket doesn't fly straight, what's wrong?

Here are some suggestions on fixing common problems with a rocket that doesn't fly straight.

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.