CCotner
Well-Known Member
- Joined
- Sep 4, 2012
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I keep hearing people have bad experiences with this motor, and it's scary, since we have 14 of them to start flying starting this weekend for a research project. We are grain bonding them as suggested by Aerotech directly. What issues have people had/what were the resolutions?
Recently one blistered a case-we think this was because of the huge, thick, full-width long-burning delay grain, so we're thinking about inhibiting both ends of the delay grain (one is already epoxied over), and/or making a bunch of plastic plugs and saving the delay grains for a fun bonfire. But surely this can't be a common problem, or how would it have become certified? What's up with that?
Recently one blistered a case-we think this was because of the huge, thick, full-width long-burning delay grain, so we're thinking about inhibiting both ends of the delay grain (one is already epoxied over), and/or making a bunch of plastic plugs and saving the delay grains for a fun bonfire. But surely this can't be a common problem, or how would it have become certified? What's up with that?