Model Rocket Solid Fuel Engine

Be careful; it can explode. I would not put on a rocket. , with version 2 coming soon. 

I forgot to take images before the test :(

calculator: https://docs.google.com/spreadsheets/d/1dVjB4eL-JSPrVfs9sIiHSpxyBruPsYZYj8myGhRIYQ0/edit?usp=sharing

This is how to find the amount of fuel needed. v2 will have better photos and files.

the photos are buried in the sand

solid fuel using sugar and potassium nitrate/stump killer

 https://drive.google.com/file/d/12D65Xs_vSDvxkKD19vyKkQawilA28bxC/view?usp=sharing

video

update 3/6/24

I made a v2 with a 15mm nozzle instead of 10, and it had no thrust whatsoever, so then I tried this nozzle again and drilled very little, and this happened:

https://drive.google.com/file/d/1YHmGkefgwMbWxwA_jSjirT2A7wYnVcmO/view?usp=sharing

So I think you must drill about 5 to 6/8 of the way into the engine, but I will try it soon and update. 

Anyway, here are the instructions: you can buy stump killer that is high in kn03 This is the stuff I had: https://tinyurl.com/5dfcau9m

then get some sugar. simply put 35 grams of sugar in a cup and blend it up until it is very fine then put 65 grams of stump killer/potassium nitrate in the bottle, blend it up until it is fine, and mix the two together. That is your rocket fuel. Then you will use the ram rod to pack it into your engine through the back and screw the cap on. This recipe makes 100 grams of fuel.