Effect in one of Dave's videos - what is it called?

[PuroJon]

In Dave's video "2 Million Fireworks Video Views" at 00m37s there is a spiral effect I am not familiar with and am curious about.

http://www.youtube.com/watch?v=uocHbhRoqy4&feature=youtu.be&t=37s

I was told it is a "spiral-to-salute shell" but would like to know more. Is anyone familiar with this effect and how it is achieved?

Thanks!

[Pyro-T]

The inserts in those rockets are so called 'timed reports'. Take a look here: http://www.youtube.com/watch?v=intmdbzkE_s

http://www.youtube.com/watch?v=intmdbzkE_s

[PuroJon]

heel erg bedankt mijn vriend... For some unnatural reason I am fascinated with that specific effect and really appreciate the reference.

[cynthiafireworks]

I am here to see the answer...I am eager to know as well.. :)

[Pyro-T]

When you search around in this forum or the internet you will find enough informtion about timed reports. You can also look at a Italian or Maltese daylight show, there are also timed reports used in their shells.

In basics timed reports are nothing more than (small) salutes, all with a different length in (time) fuse.
When you put 10 salutes in one rocket/shell and you gove each salute a different fuse length of 1cm/2cm/3cm up till 10cm long, they will fast explode after each other. This gives the timed reports.
When you put the salutes in a cilinder shaped shell/rocket header and put the break charge in the middle, you get the ring effect.

[PuroJon]

Thank you very much for that explanation Pyro-T