Building a 5" MultiBreak Shell (Part 3, Ignition, 5/15/2010)

After half a year's wait my 5" multibreak finally got into the air - Mostly. As can be seen in the video, two of the three breaks failed in the gun. This could be due to one of two faults so far as I can guess: It could have either been that the spolettes of the first two shells (which were made in high humidity) dried and cracked while in storage for so long, or, the shell simply could have given in to the forces of acceleration and folded in the middle. Both of those things could have caused the type of failure seen in the video, which is, the first two shells igniting immediately, and the last shell surviving until the spolette burned its full duration.

Either way it was rather disappointing. Improvements will just have to be made for the next one. I was quite pleased with the effect of the final break of tigertail and magnesium inserts. I may need to try that again without so much other clutter in the sky. It was nice to finally get a shell in a gun at an MPAG shoot if nothing else.

Check out my website: http://www.grassrootsdiy.com/

Category:

Science & Technology

Tags:

• Michigan
• Pyrotechnics
• Arts
• Guild
• How
• Fireworks
• Are
• Made

[STYNO94]

i didn't knew there are 15 months in a year... (check title)

[Nighthawkinlight]

@STYNO94 In the states the date is given in mm/dd/yyyy.

[cornercat]

the pattern is a heart?

[Nighthawkinlight]

@cornercat No, rings.

[iaberis]

good but too much effort

[mcwario13]

@STYNO94 \/\/o\/\/ you FAILED bad illegal imigrant

[TednTin]

@STYNO94 poor fellow

[Daktilo060]

this is  very bad ( low)

[STYNO94]

@TheCursedManiac laat zien hoe het moet dan

misschien kan ik nog eens wat leren

[TheCursedManiac]

@STYNO94 lol ik doe nergens moeilijk over maar als je trolld troll dan goed

[STYNO94]

@TheCursedManiac kun jij niet lezen kerel ik was aan het trollen XD

dus waar doe je nou zo moeilijk over

[TheCursedManiac]

@STYNO94 ik ben ook nederlands maar iedereen weet toch dat ze in de usa mm-dd-yy doen

[STYNO94]

@TheCursedManiac no i am not,

im not stupid, im dutch.that means that im not from the USA.

and for people who dont know that im trolling, try to grow something called brains :P

[maactisd]

That actually turned out really nice. Before reading your note, I was convinced you had a mine bag sitting on top of the shell when it fired.

Good job, I like your work and have watched all of your videos.

-Mike

[Nighthawkinlight]

@BACKSTABBER692 They keep records I'm sure just like any other business, but it is legal for you to make fireworks for non commercial use. Staying legal without a license is very complicated though, which is why it is very important for you to read the orange book. It is the federal explosive regulation manual published by the ATF and is a must read for anyone who wants to make fireworks. Look it up online, there are a few places to read it in digital form.