The combustion chamber is made of a 18" (0.4572 m) long, 1.5" (38.1 mm) wide schedule 40 PVC tube, insulated on the inside with EPDM rubber. The fuel grain is .25" (6.35 mm) thick with a 1" (25.4 mm) core.

The nozzle is made with fast setting anchoring concrete and metal washer inserts to minimize erosion. The technique used is based on a method by Dan Pollino, Inverse Engineering.(There is a new ceramic nozzle just developed for this engine. The Ceramic Nozzle for PVC Rockets).

The engine is glued together using Purple Primer and PVC gray cement. Caution should be taken when gluing the parts together due to the fact that you only have one opportunity at it. Once glued there is no turning back (a major drawbacks of non reusable systems)

Illustration 14

Before gluing the oxidizer tank to the combustion chamber, the fueling line needs to be installed on the injector and tested for leaks, you don't want to find out there is NOX escaping after the units are glued (see test2).

Illustration 15

Same goes with the igniter (seen here on its mold), it needs to be installed before any gluing takes place.