Water rockets

The next NPL Water Rocket Challenge event will be on Wednesday 24 June 2020.
Registration will open soon on this page.

See Archive below for results, photos and videos from previous years' Water Rocket Challenges.


Water rockets are fun and easy to make

Below are posters of water rocket scientific facts and design tips, as well as a video made in association with a local school on the science of water rockets:

Download our comprehensive booklet about building water rockets and download our Water Rocket simulator software, as described in the booklet which helps you improve flight and understand the physics involved.

Rocket Simulator

This Water Rocket simulator software is described in the booklet and helps you improve flight and understand the physics involved (be amazed at the temperatures of water and air leaving the rocket).

Download [Windows Installer 2.84MB]


Did you know?

NPL constructed a water rocket powered car which featured on the Gadget Show.

We also held the record for making the world's largest water rocket, launched in 2011 – using 140 x 2 litre bottles and stood 3.4 m tall – and this year we are attempting a new world record!

Contact us