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Recently, I purchased a load of D12s from someone getting out the hobby. His motors are older, but work fine. At a recent launch at our local group (CENJARS), we had a number of CATOs with E's and D's -- and while perusing the motor selection from a local vendor (Rocketship Games), I noticed that the clay that provides the end-cap and nozzle of newer Estes motors is of a much more coarse grain. It's no longer like sand, but more like fine gravel.
I'm wondering if anyone has had the chance to investigate this -- and determine if this is the reason that D and E motors have a 1 in 10 chance of being a CATO these days. I've taken to running a ring of epoxy around the clay of the nozzle when dealing with the newer motors -- but I've had no issue with the older motors.
Thanks!!
I'm wondering if anyone has had the chance to investigate this -- and determine if this is the reason that D and E motors have a 1 in 10 chance of being a CATO these days. I've taken to running a ring of epoxy around the clay of the nozzle when dealing with the newer motors -- but I've had no issue with the older motors.
Thanks!!