The Sugar shot project has begun testing finocyl grain geometries. Rick Maschek is doing a great job of actually casting the segments. Rick has managed to remove the mandrels with ease , something that is notoriously difficult with complex cores, by cooling it first by running nitrogen through the center of the mandrel. Ed at true-core fabricated the mandrel designed by Richard Nakka. I supplied a short 2 segment casing to work with the Blast Tube Motor that I designed to test ablative samples. Really interesting work that I wish I could be more involved with.
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