hi,
i'm kind of new here, so sorry if this has been done before.
i want to build a rocket, but the most difficult part for me seems the
rocket motor
and nozzle of the motor
i want to create my own motors, for the achivement and the fun
i am making it with black powder in a tube, but don't know the exact sizes
of the hole in the center or the shape/size of the nozzle.
some help please ? jeroen (the Netherlands / Holland)
some help please ? jeroen (the Netherlands / Holland)