On 9 September 2014 14:22, Christopher Head wrote: > As I understand it, one of the original reasons for not wanting to use > a normal plug is the possibility of damaging things by driving away > with the cable plugged in. In light of that, seeing as you have a > source of electricity coming in whenever the plug is attached, A typical "caravan cord connector" as used in NZ could be arranged to safely pull out as the vehicle leaves. Note that this has been known to cause a launch abort if pins disconnect in an unexpected way. If not aiming for orbital launch this is unlikely to be a problem. http://en.wikipedia.org/wiki/Gemini_6A#Flight " ... All went well right up to ignition; the engines ignited, but then a plug fell out of the bottom of the rocket, starting the onboard computer. This was not meant to happen until the rocket had actually lifted off, and the onboard computer detected no upward motion, causing it to abort the launch. At this point, mission rules called for a pad abort to get the astronauts away from the rocket as quickly as possible, as it would explode on impact with the pad if lifted and fell even the smallest distance. ... " --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .