08-22-2019, 12:01 PM
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Master Modeler
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Join Date: Jan 2009
Location: Fairbanks, Alaska
Posts: 6,507
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Quote:
Originally Posted by Ez2cDave
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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).
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