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

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Manufacturer
Estes Industries
Designation
E9-4
Type
single-use
Date code
A 09 15 14
Failure date
Apr 21, 2018
Location
Three Oaks Michigan
Temperature
60 ℉
Nozzle blown out
Ejection end blown out
Other failure
description
Casing is pretty clean inside. No trace of clay or propellant inside, only slight carbon residue and a little peeled paper strips 1/2 to 1 inch from nozzle end. The motor moved forward 1/4" enough to take out the motor block and then blew a big hole in the bottom of the 3 inch plastic nose cone.
Reported to mfr.
Have more motors
Comments
Was in BMS 3" school rocket on 6" rail. It got about a foot above the rail.
Status
accepted