Chapter 9 — Discussion and Conclusion

Tests of bursting warimono shells that were manufactured under various conditions were conducted on the ground, and the position of moving stars were analyzed by a photographic method. To make the analysis easy, ring star shells were employed as test shells. The results showed the quantitative relations among design factors, which were not clear until this study. These data were introduced into empirical equations concerning the ballistics of stars, which are useful for designing the chrysanthemum shell.

Ref: Selected Pyrotechnic Publication of Dr. Takeo Shimizu, Part 4,  pp 140-141

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