Comments
The motor lit fine, rocket made it a few hundred feet off the ground and then there was a loud "pop" - upon recovery the aft closure/nozzle was missing and there was one partially burt propellant grain left in the case. More details in this .pdf document: https://drive.google.com/file/d/0B2rfKF8ZbtXNM1R1T3lBUWViOE0/edit?usp=sharing