A ground spinner item, made like a hummer. Rather thick case, 5 mm ID, 13 mm OD. 40 mm long. End plugs of paper wadding and hot-melt glue. Vent hole drilled using a 1.8 mm drill.
Propellant of modified blackpowder (my bottle rocket propellant containing Aluminium powder). Fused with a thin piece of blackmatch glued into nozzle with meal-NC paste blob.
Spun and sparked, fun device.
Reasonable thrust from the double surface area burning, spat out a nice long spray of charcoal and Aluminium effects.
Can't say much else, the empty flower pot I threw it into concealed most of the action. Fairly short burn, but that isn't suprising considering its size.
| title | type | size |
|---|---|---|
| Burn Video | video/x-msvideo | 1.329 Mbytes |
| Pre-Test Picture | image/jpeg | 27.175 kbytes |