black powder rocket motor delay

[val77]

hi to all

I ask you a question about rocket engines

In fact I'll soon start farbication 14mm rocket engine

So I wanted to know what will be the length of delay

tubes are 85mm long

the fuel that will be used will be 60/30/10

time will also 60/30/10

 

So to avoid Echer I have wanted to know what length of delay would be best appropriate

greeting

val

Edited August 25, 2012 by val77

[nater]

What kind of heading do you plan on lifting?

 

I am still in the process of dialing in my delay fuels, but so far 3 increments of BP fuel above the spindle has worked good. I used 2 increments of a red fuel at PGI, I thought it was a little long but another member here saw it and thought it was perfect. It all depends on what you are lifting and what effect you are after.

[val77]

time shall be as the fuel (60/30/10)

I hope that the shell explodes 2 seconds after the rocket had reached its height

Edited August 26, 2012 by val77

[val77]

ty have test a 10mm delay

is short delay

http://www.dailymotion.com/video/xt2fmv_imag0008_webcam

What do you think?

Edited August 26, 2012 by val77

[val77]

new test with 15mm delay

http://www.dailymotion.com/video/xt2k7t_black-powder-delay_webcam

 

is juste for me

and you ?

[Potassiumchlorate]

I think it looks good

[val77]

yes is perfect y have tested this delay on a rocket and it's work !