Solid state elctronics of the 80s genre were notorious for not tolerating heat well at all. Early auto computers were easily damaged by heat, and frequently had melt downs (literally had the insulating melt and run out). 2000 generation electronics are being made with ceramics, and high temp plastics, as well as including their own heat sinks to dissipate heat. My new radios and transponder say that they are designed to not require an avionics cooling fan, but that a source of cool air while operating will extend the life. Moderate venting of the panel, and sunshades while parked will extend the life of the interior and the equipment. Colin Rainey crain...@cfl.rr.com Sanford, Florida FLY SAFE!!!!
