Remote Test Site Shoot #1 - Helicopters
Date: 2004-02-20
Description
One micro-scale helicopter was made using a bottle-rocket tubing and the same 6:1:1 blackpower propellant, techniques and tooling, with the exception that a vent was drilled through the side of the case and a smaller piece of stick was glued to the top as a wing, in your conventional helicopter (single action tourbillion) design.
Not having a lot of hope for such a slow propellant in a small device I made a 9.5 mm ID version using a small quantity of very fast meal. It was made in an identical manner as my previous high-performance 9.5 mm ID helicopter devices.
Comments
The micro-scale device barely got off the ground. The nozzle errosion was too much for it to handle. The case was simply not up to the challenge, the propellant was a bit cool too.
The 9.5 mm ID unit soared up into the air in a very rapid and impressive manner. Its burning profile suggesting I botched the ramming near the hot-end somewhat, but it didn't breach or anything, just coughed and kept accelerating.
I love these things, the absoutely rip. Not too loud, easy to make and very addictive. I need to develop a good garnishment, I think a flash report is the most logical, but if I only had magnalium I could do some crackle.
Attachments
| title | type | size |
|---|---|---|
| Micro-Helicopter Video | video/x-msvideo | 2.083 Mbytes |
| Helicopter Video | video/x-msvideo | 988.082 kbytes |
| Micro-Helicopter Pre-Test Picture | image/jpeg | 56.221 kbytes |
| Helicopter Pre-Test Picture | image/jpeg | 20.746 kbytes |