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>> No.11260827 [View]
File: 2.01 MB, 2592x1944, 5th motor (20mm x 60mm PVC).jpg [View same] [iqdb] [saucenao] [google]
11260827

>>11260823
This is the best resource I have ever found on making my own solids.
http://www.nakka-rocketry.net/

>> No.10278321 [View]
File: 2.01 MB, 2592x1944, 5th motor (20mm x 60mm PVC).jpg [View same] [iqdb] [saucenao] [google]
10278321

Powdered Rcandy? As in not melted and mixed on a skillet?
I'm guessing you have a void and as a void is exposed to the flame front it vastly increases the burning surface area and pressure often leading to a cato (catastrophic failure).

I have played with Rcandy a lot and recommend adding 10% Fe2O3 for much faster burn rates, avoid voids by casting molten fuel and tamping it with a hammer while still hot (inb4 some retard thinks Rcandy is an impact sensitive explosive).

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