This is my take on the first camera rocket, Maul's 1912 gunpowder rocket.
Overall length: 49.5"
Weight w/o engines: 7.5 ozThree launch lugs: one fin mounted, one on a standoff on the BT-5, one on the power stage.
Because this is a tractor style, with canted engines, I am concerned that the ignition wires will catch on the fins at launch. My proposed solution: run wires up the BT-5's and have a set of alligator clips near the engines and have the range clips attach to the ends at the bottom.
Is there something wrong with this idea?
Are your wires permanently attached to the bt5s? If so, how do you plan to ensure the range clips detach from your extension wires? In order to ensure a good connection a lot of people wrap the ignition wires around the range clips. For small nichrome wires, they usually get ejected from the motor upon ignition.
If you required the fins to catch the clips, I wouldn't worry. Wanting them to not catch gaurentees they will. I have pictures of the 1010 rail that launched with a rocket at NSL in Geneseo. It is best to design against the wires catching.