Pirotecnia Posted September 11, 2022 Posted September 11, 2022 I'm interested in Japanese fireworks, just love the way they do them so perfectly.Some time ago I found a chart about the shells sizes and other useful info about the lift charge weight, etc, but it was all in Japanese which is difficult for the majority of us to read and understand.As I work with programming, just captured the text from the chart image and translated it for us, so, here it is: 2
Mumbles Posted September 12, 2022 Posted September 12, 2022 One interesting thing about the chart is that I think it uses more traditional Japanese sizing. Those numbers above the shell are in gau, not inches we may be more familiar with in the english speaking world or literature. I believe Shimizu gives a little more information about this in Fireworks: The Art, Science, and Technique. Most of them correlate with some of the common sizes we're familiar with, but it leads to some strange sizes. I'd need to brush up, but I think a gau is in units of 3cm each. The largest on that chart looks to be 30 gau, but would be a 36" shell by sizing many of us are more familiar with.
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