Exploring Olympus On Black Powder E Engine
Exploring Olympus On Black Powder E Engine reveals several interesting facts.
- Tradition BP ratio (20g), 75% potassium nitrate, 15% charcoal (airfloat), and 10% sulfur. Nozzle and end plug are made out of ...
- A little 1/2" diameter
- Thumbnail rocket
- 15% charcoal 10%sulfur 75%potassium nitrate.
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Olympus on Black Powder E Engine 12mm Six launches...3 on Testing my new Rocket
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