Malfunctioning Engine Statistical Survey
M.E.S.S.

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Manufacturer
AeroTech
Designation
D15-7T three pack
Type
reload
Date code
1992 AeroTech, Inc. All rights reserved
Failure date
Jun 27, 2020
Location
Otsego, MN
Temperature
89 ℉
Other failure
description
Rear closure blown out, presumably from over pressurization. Casing threads are now missing/rolled over. Never found the nozzle end closure.
Have more motors
Comments
Only found half of the grain as it split along the slot line, and the delay grain and ejection powder never lit. The copperhead igniter most have plugged the nozzle upon ignition. It was a pretty big bang, pushing the rocket about 10 feet into the air. The half of the grain that lit started a grass fire right under the launch pads.
Status
pending