Rocket Recovery - Ejection Piston Test
A couple of tests of our ejection piston, that will be used for our latest project, a 75 mm PVC rocket I hope will be launched at the beginning of April.
The prototype was not as powerful as we hoped, since our pyrotechnic mixture seems to be kind of weak. Simple KNO3 and sugar were used, mixed as dry powders. See the first video for details:
For the second test, 1 gram of the improved pyrotechnic mixture was used, meaning that the KNO3 and Sugar were recrystallized, let to dry, than finely grounded. As a result, the piston ended up being more of a cannon, as you can see in the second video :