First Time Firing My New Rocket Propellant
25:11
The rocket motor that broke me
19:53
Making a new solid propellant formula
19:05
Candidat maître HandCopter V6
21:01
Watch Trudeau speak directly to Trump during blistering speech
23:08
Optimisation d'un Ekranoplan R/C
23:39
Spin-Casting: A Better Way to Make Rocket Motors
33:26
Building a Supersonic Rocket Guidance System
22:38