Water rockets are real fun here is some of my stuff

Link to page listed by subject

A blown bottle

Shot of cliff with tommy timer relese

Fins rule of thumb

My stubby launcher, animated gif showing how to make it

My mods to the clark cable tie launcher

A nice picture of a water tail on liftoff

A shot of a nozzle

Another nozzle shot

Dave Oliff pvc launcher

My experimental stager

stager

Shot of my stubby launcher

A tyre valve

How to make a small pyro rocket

list of pages to make rocket motors