UKHAS Wiki

UK High Altitude Society

User Tools

Site Tools


guides:cut_downs

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision
Previous revision
guides:cut_downs [2011/08/22 21:08] upuguides:cut_downs [2011/08/23 19:26] (current) upu
Line 1: Line 1:
 +
 ====== Cut Downs ====== ====== Cut Downs ======
  
Line 11: Line 12:
   * Very fast.   * Very fast.
 Cons : Cons :
-  * Explosive - duh. +  * Explosive 
- +  Accidental triggering can be very dangerous.
-==== Construction ==== +
- +
-** TAKE CARE WITH THESE WEAR SUITABLE EYE PROTECTION ** +
- +
-You're all clever people but these blow up with some force. Take precautions. +
- +
-The pyro cut down is fairly easy to construct using some acrylic tube of the following dimensions : +
- +
-External Diameter: 10mm +
-Internal Diameter: 6mm +
-Wall Thickness: 2mm +
- +
-Other items you need are some Estes D-ES2301 rocket motor igniters, transparent epoxy resin, smokeless powder. Rob Harrison has prepared a series of pictures here : +
-[[http://www.flickr.com/photos/30721501@N05/3603060662/in/set-72157619368022480/|Construction of Pyros]]+
  
-In practice you can replace the smokeless powder with the head of some matches scraped off and crushed down.\\ +** Construction **
  
-[[http://www.youtube.com/watch?v=89YACKHpUIQ|Video Match Stick Pyro]]\\  +** TAKE EXTREME CARE WITH THESE WEAR SUITABLE EYE PROTECTION **
-[[http://www.youtube.com/watch?v=mthD2gixVjQ&feature=player_embedded|Video Gun Powder Pyro]]\\ +
  
 +The legality of pyrotechnical cut downs is debatable in the UK. Given this and the potential for injury we have decided to remove this section. 
  
  
guides/cut_downs.1314047307.txt.gz · Last modified: 2011/08/22 21:08 by upu

Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki