I’ve been working hard on a model rocket launch system, on the side. The system has the following specs:-

• Launch up to 5 rockets – indivdually, or combination
• 1/8″ diameter launch rods, Height ~1.5 metres from blast plate
• 12 volt power Supply
• Key operated On/Off switch
• 10 metre cabling (from controller to rockets)
• Loud Siren for Arm position
• Continuity test

See the pictures below. Here I wanted to go through the paces of setting it up. I put some Nichrome wire and confirmed that it went red-hot for each rocket. I also did a test with an igniter to confirm that the current during continuity test will not result in a fire. Didn’t expect it to because the current is so small, but thought it would be a good test nevertheless.