Instructables
Picture of Make A R-candy Rocket! Full Guide
This will show you how to make a very good recipe for rocket candy
 
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Step 1: The Fuel

Picture of The Fuel
This is one of the most important steps. First here's what you will need : Pan, sugar, kno3 (potassium nitrate), sulfur , Iron oxide(rust,next step shows how to get rust) ,hot plate, common sense.

Step 2: Iron Oxide(rust)

Picture of Iron Oxide(rust)
What you will need to make the rust if you don't have some already: salt, hydrogen peroxide,steel wool, a container. First wash the steel wool off. Next put the steel wool in the container and Pour hydrogen peroxide with salt in it. It will start fiz and heat up. Then pour it into another container for further uses.

Step 3: The Fuel

Picture of The Fuel
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14, 8:41 PM.jpg
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The measurements I use are: 30% sugar 60%kno3, 5% sulfur, 5%. Rust (Add the rust after mixing well) . Mix well, If you choose to blend, blend one chemical at a time or it could ignite. I use a IR thermometer to tell the temperature

Step 4: Cooking It

Picture of Cooking It
I cook it at around 250F - 300F. You will know when it starts to cook, it will have a sweet smell. Next scrape it out of the bowl be careful it is really hot. Put it into a mold or into your rocket casing.

Hope you have success with you needs :). This is my first Instructable so if you enjoyed follow and like this it helps. I will be posting more about chemicals and cool stuff
jalexander234 months ago

NOT a good idea to "blend it with a coffer grinder" to make it more smooth. If you want a finer powder, use a coffee grinder on the KNO3 BEFORE mixing it with the other ingredients, and use a grinder that is dedicated to that use only. Hand mix the ingredients together using wooden or plastic utensils, until well combined. Melting and stirring the the mixture will combine them well. DO NOT USE any steel pans or utensils. Use a candy thermometer to check the temperature. The flash point of this fuel is fairly low (around 450 F.) so heat it slowly and stir so the fuel on the bottom doesn't get too hot. Think SAFETY.

douglas423 (author)  jalexander234 months ago

You are right, I did blend one at a time but i was typing it up to fast i edited it. Thanks jalexancder23

boatingman4 months ago

What did you do with the rust?

douglas423 (author)  boatingman4 months ago

You put it in the fuel when you are mixing it.

How does the rocket work?

The thrust of the fuel is shot through a nozzle which compresses the thrust making it more powerful and creating lift.