Procedure for Rocket Race Car

1.) Slot an axle support under the chassis. Push two bolts through the holes in the chassis and the axle support and secure with nuts under the chassis support.
2.) Fix the second axle support as in step one.
3.) Take one of the axles. Push it through the axle support, and then through a second rivet. Push a wheel onto the end of the axle.
4.) Fix the second axle in step three.
5.) Push the end of a strap through one set of slots under the chassis.
6.) Fix the end of the second strap through the other slots.
7.) Rest the plastic bottle on the chassis with its neck poking through the plastic ring then the loop on the chassis. Screw the screw cap onto the neck of the bottle.
8.) Bring the end of a strap round to fasten it into the loop on the other end of a strap on top of the bottle.
9.) Fix the second strap as in step eight.
10.) Push the needle valve into the whole of the bung.