DEVELOPMENT OF BURNING-TYPE COLORED SMOKES.
PICATINNY ARSENAL DOVER N J PYROTECHNICS LAB
Pagination or Media Count:
Five different colored smoke compositions with 2- to 3-inch-per-minute burning rates were developed and tested for the 2.75-inch low-spin folding fin aircraft rocket LSFFAR. Acceptable colors and volumes were obtained. The compositions developed were SR-207 red, SY-211 yellow, SG-172 green, SV-16 violet, and SB-9 blue, each containing appropriate dyes combined with various proportions of potassium chlorate, sugar, and vinyl alcohol acetate resin VAAR. Increasing the loading pressure from 9,000 to 45,000 psi decreased the burning rate by 10-12 and reduced the volume by 20 without ignition or other difficulties. In the potassium chloratesugar binaries studied 4052 through 7525, the burning rate increased with increasing oxidant. Replacing small portions of the sugar with sodium bicarbonate or VAAR slowed the burning rate, while 1-methylaminoanthraquinone gave higher burning rates. Replacing small portions of the dye with sodium bicarbonate or VAAR lowered the burning rates, while sugar or sulfur increased the burning rates. Various methods for standardizing the tests were investigated and applied. Author