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- Newsgroups: rec.pyrotechnics
- Path: sparky!uunet!spool.mu.edu!sdd.hp.com!hp-cv!hp-pcd!hpcvaac!billn
- From: billn@hpcvaac.cv.hp.com (bill nelson)
- Subject: Re: KNO3 + sugar = rocket fuel?
- Message-ID: <1992Dec26.112907.4946@hpcvaac.cv.hp.com>
- Organization: Hewlett-Packard Company, Corvallis, Oregon USA
- References: <1hhcevINNfaa@mailgzrz.TU-Berlin.DE>
- Date: Sat, 26 Dec 1992 11:29:07 GMT
- Lines: 25
-
- david@zrz.tu-berlin.de (David Siegel) writes:
- : Hi
- :
- : In my first homemade rocket engine I have used a mixture of
- : KClO3 + sugar (1:1)
- : and it worked. But it burns too quick. Now I want to try
- : KNO3 + sugar (?:?)
- : but I have never read something about that mixture. Have you got any
- : experience with it?
-
- I have never used it. You can increase the amount of sugar to decrease
- the burning rate.
-
- Shimizu gives the following composition:
-
- KNO3 59-64%
- Charcoal 20-31%
- sulfur 8-13%
- Black Powder 0-12%
-
- As you can see - you have to experiment until you get the right mixture.
- The composition will vary - depending on quite a few variables - such as
- rocket size, nozzle size, how fine the components are ground etc.
-
- Bill
-