Korey Kline released the Hypertek "L" motor systems (and Hypertek "M" - now certified) to push those larger diameter heavier rockets into the atmosphere. But how am I going to get a large diameter rocket onto the current fill stem assembly that will only take up to a ½" rod and a 6" diameter rocket? Well, here is one solution to that problem.

            I drilled three holes at the midpoint between the hinge and the ½" rod sleeve. Then I inserted the three eye bolts that had a ¾" ID eye that would slip onto my ¾" rod. The system above can handle rockets up to 12" in diameter by adjusting the nuts on the eye bolts.