The Official Magazine of Tripoli Rocketry Association
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Moonburner
Moonburner, or offset, has a circular core that is off-center. This offset is against the casting tube wall for a full offset. It will initially have a progressive, then a regressive burn. The moonburner can be made into Bates grains.
Core Offset- Radius of casting tube ID minus radius of core.
Full offset of 38mm grain using a 1/2’ core
Researched Moonburner Geometries
54/1000Ns/3G Moon Lt.Blue (3)3.25”L w/5/8” core Throat- .453” Sim-Kn-Int.200 Max 200 Sim- 500psi Successful test burn Cast tubes “spitting” out of nozzle Epoxy grains to liner.