I use to build rocket motors mostly from 30 centemeter long aluminum tube by 7 centemeter dia. on rockets 120 centemeter long.
on practice test on flat land it makes 1000 meter distance within 2.5 seconds.
in my big rocket i fitted 3 motors of this type willing to make it fly 3 times the single rocket..... well i was rong on my calculation.
I don't know far it went or how fast it was.
sadly i don't have any electronic system to measure speed and altitude.
see my test http://rocketlibyan.blogspot.com