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

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Manufacturer
Estes Industries
Designation
1/2 A3-2T
Type
single-use
Date code
AO71417
Failure date
Dec 14, 2019
Location
WyEast Middle School, Odell Oregon
Temperature
40 ℉
Other failure
description
Ejection Charge was not sufficient of four launched rockets all from the same batch. Two were during the 1/2 A helo duration and I triple checked on the smootness of the rotor blades that were within the body for the rocket. They had a piston ejection system and there should have not been any issue on ejetion. The same incident occured on the last two motors from the same bacth during a 1/2 A SD contest. The streamer should have not had any issue during ejection. The ejection charge was not enough.
Comments
Ejection Charge was not sufficient of four launched rockets all from the same batch. Two were during the 1/2 A helo duration and I triple checked on the smootness of the rotor blades that were within the body for the rocket. They had a piston ejection system and there should have not been any issue on ejetion. The same incident occured on the last two motors from the same bacth during a 1/2 A SD contest. The streamer should have not had any issue during ejection. The ejection charge was not enough. I was tempted to add more ejection charge, but that is not a safe practice. Now I have to repari the two helo rotor hubs and blades do to lack of equivelant ejection charges.
Status
pending