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Title: Making Model Rockets in India. Post by: Malolan Venkataraghavan on March 13, 2016, 08:13:44 PM Hey can I get ready made black powder anywhere in India?
Title: Re: Making Model Rockets in India. Post by: Rathi on March 13, 2016, 08:40:13 PM go to india mart. there are whole sellers....
Title: Re: Making Model Rockets in India. Post by: prabal276 on March 13, 2016, 08:56:56 PM Do not.
Do not use black powder. Use potassium nitrate. MUCH more safer. Plus the burn rate of black powder is much; much faster. Use this method. https://www.youtube.com/watch?v=12fR9neVnS8 Title: Re: Making Model Rockets in India. Post by: prabal276 on March 13, 2016, 08:58:48 PM Plus;
Make electric fuses. The best way. IMHO do not go with fuses.They may be unreliable. Title: Re: Making Model Rockets in India. Post by: Malolan Venkataraghavan on March 13, 2016, 09:36:42 PM Hey see this:
https://www.youtube.com/watch?v=Q_L2yRydMZs I need black powder to release the parachute. Title: Re: Making Model Rockets in India. Post by: ashimda on March 14, 2016, 09:17:11 AM Both sugar rockets and black powder rockets use Potassium Nitrate. Burn rate depends on a lot of factors, including: mix percentage, chemicals used, whether its a core burner or end burner, size of nozzle etc. Both fuels if not handled properly can be dangerous.
Making black powder motors is easier and less time consuming than sugar motors. Try this: http://www.nakka-rocketry.net/ All you need to know. Ashim. Title: Re: Making Model Rockets in India. Post by: prabal276 on March 14, 2016, 01:05:15 PM i know.
I just do not know where to get black powder in india. After the delay; you could again add more white mix.(see the video series know what it is) But much more densely and packed on top with a thin layer of bentonite clay. Most probably will produce the same result. Title: Re: Making Model Rockets in India. Post by: ashimda on March 14, 2016, 02:30:16 PM You probably wont be able to get ready made Black powder but the chemicals required to make it are readily available.
Potassium nitrate, Charcoal, and Sulfer can be purchased in their powder form, all you have to do is mix in the required ratios. Using sugar and KNO3 as a reliable burst charge may not work. Title: Re: Making Model Rockets in India. Post by: Malolan Venkataraghavan on March 14, 2016, 05:10:21 PM Thanks ashimda. But I knew that. Manual grinding and mixing is not as powerful as machine ground and mixed black powder. That's why I am asking if ready made black powder is available.
Title: Re: Making Model Rockets in India. Post by: Malolan Venkataraghavan on March 14, 2016, 05:15:20 PM And Ashimda may I please have your Facebook ID?
Title: Re: Making Model Rockets in India. Post by: shobhit17 on March 14, 2016, 07:10:53 PM Dear Ashmida,
Well.... we all know what is required.... I would request you to keep this valuable knowledge to youself and not give it to someone whom you do not know personally..... We are living in a very different world and need to keep the information on need to know basis. My request.... do not divulge this information to anyone. Title: Re: Making Model Rockets in India. Post by: ashimda on March 14, 2016, 07:45:53 PM Well pointed out shobhit17, but just to clarify, I have not given out any ratios and nor do I intend to. People in Kolkata love to make their own fireworks and I am one of those persons. I was just contributing to a topic which interests me.
Regards Ashim. Title: Re: Making Model Rockets in India. Post by: shobhit17 on March 16, 2016, 10:55:31 PM Well..... thanks for understanding what I meant friend...... on such issues we may hand over the knowledge to people very close to us and whom we feel can keep the knowledge with themselves and use it for the good of everyone..... there are plenty who do not understand the repercussions and just go and blabber it out.... we need to guard against such things.
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