My first ever shell, if you can call a 40 mm long, 12 mm diameter device a "shell".
The tube was the off-cut from one of my core-burning rocket tubes. Just a pasted A4 80 gsm tube, 8 mm ID, 12 mm OD. I rammed a clay seperator 10 mm up from the base using a specially made nipple and pin (usually used for end-burning drivers).
The base was filled with NC lacquer bound Aluminium & Iron gerb composition, and a teaspoon of so of 4 mm cubical cut stars of the same composition was placed inside. A 1/2 teaspoon of pulverone break, and some wadding + hot-melt glue to seal the top.
The cross matching was achieved by folding a piece of thin blackmatch into a U shape, and gluing it to the delay 'spoulette' with a little meal-NC paste.
The lift was 3/4 teaspoon of pulverone, the mortar my stargun, fused with a little Zinc effects blackmatch. A small ball of paper wadding sealed in top.
Totally Sucked!
The lift was good, you could see the delay winking like a pulsar as the shell tumbled end-over-end. The only problem was the delay took forever to ignite the shell. The thing had landed on the rocks before it broke.
The recoil of the lift actually knocked over my rocket lauching rail (you can hear it on the video) and the shell ended up being lauched a little bit more shallow that intended, this worked out well.
Unfortunately the break isn't on the video, but it wasn't anything to write home about. A fairly weak hose-break out one end, probably the top, but it was hard to tell. The walls were too strong to expect anything else.
At least the timing element ignited and the shell actually broke. Not too bad for my first try I guess.
| title | type | size |
|---|---|---|
| Test Video | video/x-msvideo | 501.402 kbytes |
| Pre-Test Picture | image/jpeg | 25.267 kbytes |
| Cut Stars | image/jpeg | 44.868 kbytes |
| Assembly Picture | image/jpeg | 48.698 kbytes |