This site details the building and launching of various water rockets between 250ml and 12 litres Make sure that it will do no harm wherever it lands - simple home rockets to a Science Olympiad rocket and beyond.

The following instructions describe how to build a launcher and a simple single stage water rocket capable of flights to altitudes of around 60 – 80m. (~180 – 250 feet). For simplicity the rocket does not use a parachute, and is built to withstand a h