When I set out to build my own launch pad, I was looking for a design that was light weight, easy to use and store, and had a low center of gravity. My search led me to a design that fit my needs perfectly; a design based on John Coker's ProRail Base (see link below). My build had a couple deviations from John Coker's design: I used 2" square tubing instead of 3" tubing, and is fully bolted, no welding required. Since the filming this video, I have replaced all of the hardware with stainless steel hardware, and I have added a blast deflector. http://jcrocket.com/prorailbase.shtml www.dragonworksrocketry.com