TESTING BURN RATE AND SETTING A DELAY

Heres a quick way to test the burn rate (BR) of time fuse and how to properly set and time a timed delay in mutable shots. What is burn rate? BR is an average burn time in a given length of fuse. In this Instructable I will sub jest you use factory made fuse ( with a BR of 35 to 45 seconds per FT.) Seeing how home made fuse will have imperfections and working with explosives that is not something you want to get wrong. Why would I want a delay? When we were setting breaching charges, we needed to get in the house quickly and off the streets. with a delay we were able to have some stand off distance from the door. Here is what was taught to me when I was working with demo in the marines, this is straight from my books, I hope after this you can safely do what I love and blow stuff up.


the stuff you'll need

role of fuse ( in my case its string)
lighter
sharp cutting device
tape measure
stop watch
pen and paper

Step 1 TESTING BURN RATE

To test the burn rate of time fuse, you must first cut off six inches from the roll and discard it. this ensures that any moisture the time fuse may have been exposed to will not effect the test of the burn rate. Next you will cut off three feet. it is very important that your measurements are precise so that you can get an accurate burn rate. You will now need to ignite one end of the fuse to determine the amount of time it takes to burn three feet using your stop watch. Once the time fuse burn is complete, you need to take the total time and convert it into seconds and then divide that number by three. This is getting an average burn rate per foot, which will be your final burn rate. IF THE NUMBER HAS A DECIMAL, then you will round to the nearest 100th. Remember, your BR should be 40 seconds per foot with a tolerance of plus or minus 5 seconds per foot. (working with m700 time fuse)

Comments

[PKTraceur]

Oh thanks! Thats Awesome! So, when were you USMC? -PKT (Formerly RoAr)

[dealydoo]

i just got out 2 months ago

[PKTraceur]

What does the USMC do? How did you become a USMC member? Did you go through JROTC or ROTC? What do you do in ROTC, if applicable? -PKT

[dealydoo]

go talk to a recruter. usmc is all about the grunts. everyone else is suport. you can do the jrotc thing but eh sort of lame..... i was an assaultman i shot the 83mm smaw best job ever. EOD would be sweet. EOD you guys rawk.

[PKTraceur]

Nice. So, is that you in the first pic, or google? -PKT