Operation of a Hybrid Rocket Motor

Hybrid rocket motors use a seperate fuel and oxidizer.  This is generally Nitrous Oxide injected as a dirpersed liquid through an injector into a solid fuel grain which also acts as the combustion chambed.

This is a pretty good demonstration by Ben Krasnow on you tube of the operation of a hybrid rocket motor.

He should have used an insulating material between the hot ends and the end of the perspex.  The devil is in the detail.

The hybrid rocket motor is an excellent back yard motor for experimenting with.