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Time fuse selection


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Posted

How does one select time fuse for the correct length and diameter for a specific diameter of shell.

 

For instance, what length of time fuse X of diameter Y goes into a shell diameter of 3"

Posted (edited)

Tyrone, are you asking if one uses different diameter time fuse for differnt shells? If so then no, 1/4" dia. is the standart, there ARE some other types that are bigger or smaller but 1/4" is the standart. As far as how long of a piece of TF to use, it all depends on how fast it burns. For example a 3" shell wants 3 seconds of delay, Skylighter has some tables for this, but in the end its up to trial and error.

 

Edit; Sorry, I seem to be hogging the forum, though there aren't much folks around and I'm boring my a$$ off at work...glare.gif

Edited by Ventsi
Posted
Ventsi, i dont mind you hogging the forum. More information is best. especially from an established member. Well that helps very much. Thank you very much again friend!
Posted (edited)

How does one select time fuse for the correct length and diameter for a specific diameter of shell.

 

For instance, what length of time fuse X of diameter Y goes into a shell diameter of 3"

 

Is this what you were looking for?

 

Time Fuse Delay Times http://www.passfire.com/images/clear.gif http://www.passfire.com/images/clear.gif http://www.passfire.com/images/clear.gif http://www.passfire.com/images/clear.gif http://www.passfire.com/images/clear.gif

Shell Size Delay Time

(in.) (sec.) http://www.passfire.com/images/clear.gif http://www.passfire.com/images/clear.gif http://www.passfire.com/images/clear.gif http://www.passfire.com/images/clear.gif http://www.passfire.com/images/clear.gif http://www.passfire.com/images/clear.gif http://www.passfire.com/images/clear.gif http://www.passfire.com/images/clear.gif http://www.passfire.com/images/clear.gif http://www.passfire.com/images/clear.gif

3: 3

4: 3.5

5: 4

6: 5

8: 6

10: 6.5

12: 7

Typical delay times from lift until burst for aerial shells.

Source: Illustrated Dictionary of Pyrotechnics

Edited by dagabu
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