Step 3Rubber Spine
I did mine using a piece of rubber flashing. In the event you are not a roofing contractor, you can use friction tape.
What i did was to cut a strip of rubber about 1/4 inch by 2 feet long, then I peeled the backing paper, and used my scissors to force it down into the interior of the spine.
Of course, you can just as easily use a 2 foot piece of friction tape on the interior.
The friction from the spine is very important, in Kiteman's original, the corrugation gave the friction. In ours however, the aluminum is very smooth, so without friction from the spine, the cracker will just slide out of the end. The reason the friction is so important, is crackers are not very aerodynamic, so the friction will give the cracker some nice rotation. The rotation will give us moment of inertia to stabilize the flight path. (like a frisbee)
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