single-perforated grain

single-perforated grain

[′siŋ·gəl ¦pər·fə‚rād·əd ′grān]
(materials)
A cylindrical propellant grain with a single perforation located in its axis; this type of granulation is used in propelling charges for several calibers of guns, and in rockets.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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