Bp works just fine.. Make your nozzle as thick as your tube is wide, and for an endburner make your nozzle hole 1/4 the diameter of the tube. This is on the safe side but it will get you something that will give up the tang.
BP....not good ! In the form of powder-bad idea. In the form of flakes-even worse ! Compressing it-WTF !?
OK...use rocket candy instead. It is like a paste or play doah. That makes it burn at more or less steady rate, unlike BP which egnites violently or rather explodes. Thats due to a fact that flames, gases and radiating heat in deflagrating BP egnite deeper particles and making it explode. Or in your case: expelling your nozzel.
Bp works just fine.. Make your nozzle as thick as your tube is wide, and for an endburner make your nozzle hole 1/4 the diameter of the tube. This is on the safe side but it will get you something that will give up the tang.
jackmonkey26 2 years ago
BP....not good ! In the form of powder-bad idea. In the form of flakes-even worse ! Compressing it-WTF !?
OK...use rocket candy instead. It is like a paste or play doah. That makes it burn at more or less steady rate, unlike BP which egnites violently or rather explodes. Thats due to a fact that flames, gases and radiating heat in deflagrating BP egnite deeper particles and making it explode. Or in your case: expelling your nozzel.
Try KNO3 / sugar / corn syrup (binder) mix
urosh911 2 years ago
lol... on my rockets the nozzle always blow out too... 5*
enonano 3 years ago
Anyway black powder is not the ideal as a rocket fuel because of its tendency to explode.
Try potassium nitrate/sugar instead.
zagorrinetto 4 years ago
It blew right away, that sucks. How was it built? What was the motor like? What fuel shape?
r0ck3tsm0k3 5 years ago
The fuel is black powder. The fuel shape is a cylinder compressed under 10 ton pressing.
robertpipo 5 years ago
how did you compress it by 10 tons?
timmy1146 4 years ago
With a hydraulic press capable of exerting 10 tons of force, obviously.
lithiumdeuteride 3 years ago
win some, lose some, that's why you test!
Gomezcaline 5 years ago