June 20, 2007

Rocket Content

I am now learning the art of making my own electric matches. The point being that you dip the electric match into pyrogen* to create an igniter. The igniter is slipped into the core of a pyrodex pellet which is then placed into the heart of the rocket motor. When the pyrodex pellet is ignited it simultaneously builds the pressure in the combustion chamber, preheats the fuel grain, and burns the fill hose away from the injector which allows the nitrous oxide to make its contribution to the magic of thrust-producing science.

Very. Loud. Science.

*From the Rocketflight Products website comes this description of their Magnelite Igniter pyrogen:

Once ignited the pyrogen burns for approximately one second at a temperature around 5,400 degrees Fahrenheit! Amperage requirement for successful ignition is 5 to 6 amps at 12 volts DC per igniter.

FYI: 5,400 degrees is very close to the temperature of the surface of the sun!

Science, baby!!!

Posted by Ted at June 20, 2007 05:38 AM | TrackBack
Category: Rocketry

Hey, you ever gonna build another cow rocket?

Posted by: Victor at June 21, 2007 08:48 AM

Funny you should ask that. Yes, I am. In the process of...

Posted by: Ted at June 21, 2007 10:11 AM

Where can I get glow sticks in bulk in the San Jose Bay Area?

Posted by: Datta at January 18, 2013 02:08 PM
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