Origionally, this rocket was built from a kit, but when I launched it with an F-10-8, the body seperated and all I found was the nose cone and streamer. Definately an awe inspiring launch though, must have gone over 5000 ft.

The latest rendition has two baffles on each side of the coupler made from 24/29 paper centering rings and thin plywood bulkhead material.  I also have built a motor adaptor for an E-9 engine, just not sure if a 6 second delay will be long enough when I include a D-12 booster stage I just built.