

Posted 22 November 2012 - 06:04 AM
Posted 22 November 2012 - 06:39 AM
Posted 22 November 2012 - 10:30 AM
Posted 22 November 2012 - 09:33 PM
Possible.do you think 1lb bp motor will lift a shell like this
You will get short duration with shorter flare tube .i can use 1/4 tubes (6mm id and 50mm long) for make tiny flares ?
Posted 24 November 2012 - 12:29 AM
Posted 24 November 2012 - 04:36 AM
I'd rather say you have to be ready for a worst case scenario and shoot only where you can't do much damage. Your rocket can fail anytime anyway.you should always adjust the duration of flares so that it must never cross the safe flying zone.
What kind of technique is that?hand crimped nozzle
Edited by mabuse00, 24 November 2012 - 05:03 AM.
Posted 25 November 2012 - 04:34 AM
How did you attach the strings to the parachute material?
Did you guys find any of your your parachutes after firing?
How do they look, is your burning protection sufficient?
What kind of technique is that?
Posted 25 November 2012 - 05:07 AM
Posted 25 November 2012 - 07:56 AM
Posted 25 November 2012 - 12:55 PM
.....and made with hand craped tissue paper
Posted 16 December 2012 - 07:24 AM
Posted 13 November 2013 - 01:20 PM
nice sir.i want to know what gauge plastic you use for parachute.
Posted 14 November 2013 - 10:24 AM
i want to know what gauge plastic you use for parachute.
Were you a little more attentive you would have noticed that the parachutes were made of hand craped tissue paper. Although I have used 80/100 gauge poly-sheet with success.
Posted 14 November 2013 - 05:16 PM
The composition of my red flare is as follows (parts by weight)-
The casing should be rather thin otherwise it would not burn well. Those flare casing were made with 3 turns of 40-50 lb kraft paper and dry rolled with a 1\4”od (about 6mm) Al dowel.
- Strontium nitrate---50
- Aluminium (<45 micron coated flake)---10
- MgAl (-60 mesh)---5
- PVC---12
- Sulfur---4
Very simple mix, I like it!
David
PGI Rocket Boss http://www.pgi.org
IPA Member http://www.iowapyro.com
"The art of fire is indeed the supreme art; for fire is at once the universal slave, the universal master."
Posted 15 November 2013 - 04:38 AM
@dagabu,It's great and indeed, we are extremely happy that you are getting better day by day.Best wishes for your quick recovery and good health.
Posted 17 November 2013 - 03:54 AM
Were you a little more attentive you would have noticed that the parachutes were made of hand craped tissue paper. Although I have used 80/100 gauge poly-sheet with success.
80 or 100 gauge which you prefer for parachute?can i use normal polythin bags?which size parachute i made by polythin that open in air without any obstruction.what you want to mean that hand craped tissue?when i went to buy the hand craped tissue,the seller want to know what is the local name of hand craped tissue.please help.
Edited by bidyutbaidya01, 17 November 2013 - 03:55 AM.
0 members, 0 guests, 0 anonymous users