Having spent far too much time pondering just how to create an effective connection between our Vulture 2 spaceplane's rocket motor heater and its external LiPo and thermostat, we're obliged to the inspired Reg reader who came up with a classic KISS solution.
The problem was to have a hook-up which wouldn't disconnect as the aircraft made its way to altitude, but which also wouldn't impede the plane's launch.
We'd considered magnets, induction coils, microwave/laser links, etc, etc, but here's the garden shed solution: some lengths of 2mm copper tube with wires shoved into them:
So, the wires are firmly connected pre-launch, and then just fly out when the Vulture blasts off. There's more on this extremely cunning plan here.