(Courtesy of Star Rocketry)
Ignition Wire Setup For "L" Motor Systems
Ignition technique for "L" fuel grains - tape to inside wall of fuel grain.
Cut a length of ignition wire and instead of taping it to your fuel stem tape it to the inside wall of your fuel grain with tape ( I use the thin black 1/2" electric tape). Feed ignition wire through the nozzle and out the other end that screws to your motor assembly. Then put a piece of tape on the ignition wire so that about 1" of wire extends beyond the tape. Pull on the ignition wire at nozzle end to feed the taped piece back into the fuel grain until the tip of the ignition wire is about 1/2" to 1" from the bottom of the threaded area of the fuel grain. Click Here For Illustration
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