Hi Hanermo - Good post. But I can't get behind redundant wiring, nor cooling all electronic equipment. How would you suggest the cooling be accomplished? And why do you feel these precautions are necessary? Regards, John "Seahorse" ------------------------------------------------------------------------------ -------------------- 1. Redundant wiring. The whole craft must have pre-installed redundant wiring for every major piece or equipment, running in separate conduits. Every wire must be numbered at both ends, and at 1 test point in between. A paper chart of wire numbers, must exist at origin, at endpoint and at one test point. This single thing, on its own, will absolutely halve any troubleshooting time, and halve repair, maintenance and installation costs of all electrical and electronic equipment over the lifetime of the vessel. 2. Proper storage of electronic equipment. All electronic equipment must be cooled. All electronic equipment must be in a sealed moisture-proof enclosure. Thats it. Nr 2. alone will extend the lifetime of electronic equipment at a minimum 100% on average 500%. To my knowledge, no-one builds craft with these two simple things in mind. ************************************** See what's new at http://www.aol.com