"How big is that explosion going to be?" That's a question the Pyro's get when organizing a professional firework display.
First lets look at what happens when a firework is ignited:
Inside a fireworks shell are several components: 1) the lift charge, 2) the delay fuse, 3) the burst charge 4) the stars (and effects).
So how BIG is B I G? Well simply put...
Stars dispersion is, according to the Explosives Regulator Division of Natural Resources Canada, "The maximum distance that stars (pyrotechnic effects) are projected by the explosion of the burst charge is approximately 27 m in diameter for 25 mm of the nominal shell diameter."
Don't worry about trying to calculate that as we've made it easy for you. Refer to our diagram, share with friends, print it out and bring it to your next big professional display!
Have a blast!