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Old 08-22-2019, 01:01 PM
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blackshire blackshire is offline
Master Modeler
Join Date: Jan 2009
Location: Fairbanks, Alaska
Posts: 5,898

Thank you--I helped Dr. Edward Jones (he's deaf) get a supply of parallel-wound paper tubes for Rapier-type test jet motors several years ago. His propellant formula at the time even included red gum from a particular Australian tree (I forget which species), but he achieved long, smooth, even-thrust motor burns. He and others have been tinkering to optimize the thrust-time curves, for a family of motors (Dr. Z. had also developed a family of Rapier motors of different sizes, thrust levels, and burn times).
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
All of my book proceeds go to the Northcote Heavy Horse Centre
NAR #54895 SR
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