4" PVC Rocket CATO

This is one of our first attempts at making a PVC motor using a drylok nozzle. The motor was about 4" long with a 3" grain. The grain core was .5" and the nozzle diameter was .25". The nozzle exit diameter was .75". The motor was then attached to a .5" wooden dowel for stability. The rocket started to scream out of the launch tube, but CATO'd after about 100 feet of flight. Listen for the explosion. Upon recovering the rocket we found that the PVC cap blew off and the casing was still intact.

Category:

Science & Technology

Tags:

• failure
• rocket
• sugar
• candy
• kno3
• kn/su
• homemade
• explosion