I'm getting interested in amateur rocketry. I'm realistic about it and understand that my skills and technology currently available won't let me construct anything beyond very simple designs, with glued paper hull and improvised nozzles, or at most with a hull from a pipe and water nozzle used fit to it.
What performance can I expect? How large such a rocket should be? Should I ever try build something longer than a couple of decimeters using such a primitive technology?