a new order of entertainment
at long last, i've built my first fireworks after much theory & study. the little one is just a firecracker, though with about 1o times the bang. the larger has, from the bottom of the barrell, anchor-nail in putty, cardboard buffers, propellant charge (strong) with a double fuse (visible is the faster ignition but joining it just outside the shell is the slower fuse attached to the projectile), another cardboard separator, the explosive projectile (both ends puttied), some cotton wadding, & a tissue cap. the projectile is basically the same as the firecracker leaning on it but with about 4 times the charge (cordite supplemented with copper powder, which is supposed to give a blue tint (i didn't have much)).
will report below after firing'em off how well they worked.
a new order of entertainment
at long last, i've built my first fireworks after much theory & study. the little one is just a firecracker, though with about 1o times the bang. the larger has, from the bottom of the barrell, anchor-nail in putty, cardboard buffers, propellant charge (strong) with a double fuse (visible is the faster ignition but joining it just outside the shell is the slower fuse attached to the projectile), another cardboard separator, the explosive projectile (both ends puttied), some cotton wadding, & a tissue cap. the projectile is basically the same as the firecracker leaning on it but with about 4 times the charge (cordite supplemented with copper powder, which is supposed to give a blue tint (i didn't have much)).
will report below after firing'em off how well they worked.