Thermalite a specific type of fuse used in pyrotechnic applications.
This fuse is used in high-power model rocketry as a means of simultaneously igniting multiple "clustered" rocket motors. A single flashbulb or flash pan is used to ignite pieces of Thermalite leading to each motor.[1]
Thermalite comes in three burn rates identifiable by the colour of the fuse wrapping:
- Pink: slow (20 sec/foot)
- Green: medium (10 sec/foot)
- White: fast (5 sec/foot)
Thermalite safety fuses and connectors were manufactured in Quebec by ICA Canada Inc., however in November 1995 they ceased manufacturing of detonator cord.[2] Sources for thermalite are increasingly hard to come by and purchasing it by mail will usually require permits and licenses.[3] As a result, those who want to use thermalite fuses will sometimes make their own.[4]
See also[]
- Artillery fuze
- Black match
- Fuse (explosives)
- Punk (fireworks)
- Safety fuse
- Slow match
References[]
- ↑ Bekman, Stas. "12.7 What is thermalite fuse and how is it involved in igniting rocket motors?". Stason.org. http://stason.org/TULARC/recreation/model-rockets/12-7-What-is-thermalite-fuse-and-how-is-it-involved-in-ignit.html. Retrieved 2010-06-29.
- ↑ http://www.slv2000.qc.ec.gc.ca/bibliotheque/centre_docum/protection/54_98_a.pdf
- ↑ "Thermalite Equivalent Fuse". Brianredmond.net. http://www.brianredmond.net/dwilliams/thermalite/thermalite.html. Retrieved 2010-06-29.
- ↑ "Skylighter Newsletter #37 - Cremora Fireball, Whistle Rocket". Skylighter.com. 2002-06-21. http://www.skylighter.com/skylighter_info_pages/article.asp?Item=35. Retrieved 2010-06-29.
The original article can be found at Thermalite and the edit history here.