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my fireworks

PiroArt86

By PiroArt86
in Pyrotechnics

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PiroArt86 Newbie

PiroArt86

Posted
Posted

Hello!

1lb bp rocket(3" inch shell).

Stars:

green wave/red wave + win 20 in the center.

video:

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PiroArt86
PiroArt86

Hello! 1lb bp rocket(3" inch shell). Stars: green wave/red wave + win 20 in the center. video:

PiroArt86
PiroArt86

Stars formula:   Red wave: SrNO3 - 45% KCLO4 - 10% Mg(150 mesh, needle form) - 20% PVC - 15% S - 5% C - 5% above 100%: Dextrin - 5% Al(100 mesh, spherical) - 10% Al(150 mesh, spherical) - 10%     Gree

PiroArt86
PiroArt86

Homemade cake, test. 10 tubes(23mm) with adjustable angle. Stars: red wave/green wave + winokur20 glitter, recipe above. Video:

Aspirina Newbie

Aspirina

Posted
Posted

wow! nice rocket! wath do you use for the delay?

PiroArt86 Newbie

PiroArt86

Posted
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Posted

wow! nice rocket! wath do you use for the delay?

 

Thanks, delay: 20mm bp 60/30/10 + 10% ti

PIL Newbie

PIL

Posted
Posted
Would you share your red and green wave formula. And please specify the mesh size and shape of the coarse metal you used.(I guess it would be titanium) Thanks.
Zumber Mentor

Zumber

Posted
Posted

very nice red and green colour stars..!!

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PiroArt86 Newbie

PiroArt86

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Posted

Would you share your red and green wave formula. And please specify the mesh size and shape of the coarse metal you used.(I guess it would be titanium) Thanks.

Stars formula:

 

Red wave:

SrNO3 - 45%

KCLO4 - 10%

Mg(150 mesh, needle form) - 20%

PVC - 15%

S - 5%

C - 5%

above 100%:

Dextrin - 5%

Al(100 mesh, spherical) - 10%

Al(150 mesh, spherical) - 10%

 

 

Green wave:

BaNO3 - 45%

KCLO4 - 10%

Mg(150 mesh, needle form) - 20%

PVC - 15%

S - 5%

C - 5%

above 100%:

Dextrin - 5%

Al(100 mesh, spherical) - 10%

Al(150 mesh, spherical) - 10%

  • Like 2
PiroArt86 Newbie

PiroArt86

Posted
  • Author
Posted

Homemade cake, test.

10 tubes(23mm) with adjustable angle.

Stars: red wave/green wave + winokur20 glitter, recipe above.

Video:

  • Like 2
Aspirina Newbie

Aspirina

Posted
Posted (edited)

awesome cake, very profesional! :o

how much b.p did you use for lift the stars?

I see that tubes as joined together one after another, which fuse as used? I see it very fast
Edited by Aspirina
PiroArt86 Newbie

PiroArt86

Posted
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awesome cake, very profesional! :o

how much b.p did you use for lift the stars?

I see that tubes as joined together one after another, which fuse as used? I see it very fast

 

Thx Aspirina :)

Lift 3g classic bp 75/15/10.

Quick match in a tube, inserted into the holes, and through it (visco/quick match) and covered with duct tape.

(sorry for my English)

BlueComet24 Newbie

BlueComet24

Posted
Posted

Your cake was very nice. Did you use pistons to lift the stars?

 

I'd recommend against using metal mortars that are not buried. If a tube in your cake got clogged, it could produce some nasty shrapnel. Cardboard, fiberglass, and HDPE are safer alternatives.

lloyd Newbie

lloyd

Posted
Posted (edited)

"Your cake was very nice. Did you use pistons to lift the stars?"

----------------

'Looked more like they were lifted with black powder...

 

(hint -- "sabot" <G>)

 

LLoyd

Edited by lloyd
BlueComet24 Newbie

BlueComet24

Posted
Posted
A sabot increases the diameter of a projectile to the size of its barrel. I'd think piston would be more appropriate, but whatever you say. :)
lloyd Newbie

lloyd

Posted
Posted

Blue, that's the case with some sabots -- most commonly for some kinetic (non-explosive) AP rounds. But, a sabot is not required to surround the projectile in order to qualify as one; they often trail the round. In fireworks, for some hundreds of years, the traditional term used for your 'piston' in fireworks has been "sabot".

 

Some use the term 'wad', but that is also not correct, unless the thing used IS a wad... that is, slightly larger than the gun i.d., and compressed to fit into the tube. A sabot is smaller than the i.d. and is often used to cushion a delicate shell against lift force, or to help uniformly lift all stars in a mine to the same height. Those in mines are often perforated to allow lift gasses to mix in with the stars.

 

I'm not a schoolmarm. You can use the term you wish to use.

 

Lloyd

PiroArt86 Newbie

PiroArt86

Posted
  • Author
Posted

Your cake was very nice. Did you use pistons to lift the stars?

 

I'd recommend against using metal mortars that are not buried. If a tube in your cake got clogged, it could produce some nasty shrapnel. Cardboard, fiberglass, and HDPE are safer alternatives.

I always use a piston with a hole to lift the stars.

About the material I agree, I know that metal is not the best in pyrotechnics, thanks :)

braddsn Newbie

braddsn

Posted
Posted

Piro, the rocket was impressive! I love it!

BlueComet24 Newbie

BlueComet24

Posted
Posted

Wow, very nice!

Sparx88 Newbie

Sparx88

Posted
Posted
That's what I'm talking about right there. That's a nice long hanging effect. Love it. What are the compositions?
PiroArt86 Newbie

PiroArt86

Posted
  • Author
Posted (edited)

That's what I'm talking about right there. That's a nice long hanging effect. Love it. What are the compositions?

Thx Sparx88!

Chemical composition(D1 glitter stars mod):

KNo3 - 53%

S - 18%

C(airfloat) - 11%

Al(150 mesh) - 7%

NaHCo3 - 7%

Dextrin - 4%

Boric asid - 1%

Edited by PiroArt86
lloyd Newbie

lloyd

Posted
Posted

Yup... the gold glitters are among my favorites, too; and I especially like the sodium bicarbonate as a delay agent.

 

LLoyd

DavidF Enthusiast

DavidF

Posted
Posted

The first rocket was very beautiful in its simplicity. I thought it performed perfectly. Much respect!

Sparx88 Newbie

Sparx88

Posted
Posted (edited)

Thanks piroart for the D1 comp. I did notice after I asked that you mentioned it already. It's one of the many star comps Ive yet to make. I have made winokur 20 with large flake alum. Not as good as alcoa 120. Needs to get some from hobby chemical supply. Have you tried wino 19? That one uses granular magnal 100-200 mesh and it really flashes big and bright but not as dense.

Edited by Sparx88
PiroArt86 Newbie

PiroArt86

Posted
  • Author
Posted

Thanks piroart for the D1 comp. I did notice after I asked that you mentioned it already. It's one of the many star comps Ive yet to make. I have made winokur 20 with large flake alum. Not as good as alcoa 120. Needs to get some from hobby chemical supply. Have you tried wino 19? That one uses granular magnal 100-200 mesh and it really flashes big and bright but not as dense.

Yes, i used winokur 20/19, each was magnalium(not granulated, 160-200 mesh).

Winokur 20 long tail, long delay between flashes.

Winokur 19 short tail, short delay between flashes(flash more often).

  • 2 weeks later...
PiroArt86 Newbie

PiroArt86

Posted
  • Author
Posted

5 new rockets(1lb bp rocket + 3" inch shell).

photo:

http://s020.radikal.ru/i707/1605/ad/2a2ea3e77fd9t.jpg
http://s14.radikal.ru/i187/1605/e4/339eeac79a73t.jpg
http://s015.radikal.ru/i332/1605/38/89d2e0af73edt.jpg
http://s018.radikal.ru/i502/1605/3c/9ca5f4c483f0t.jpg
http://s017.radikal.ru/i443/1605/31/28741f010ed7t.jpg
http://s019.radikal.ru/i630/1605/78/313aeb410281t.jpg
http://s017.radikal.ru/i405/1605/95/28253d61d0act.jpg

http://s017.radikal.ru/i416/1605/b8/51e45a404510t.jpg

 

1) green wave

http://s018.radikal.ru/i507/1605/38/f5cd92547431t.jpg

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