i am currently in the process of planning a model airport, complete with terminals, control tower, lighted runway(s) and taxiways, and approach lights. for the lights LEDs and maybe some fiber optic set-ups (if i can get it to work)....also, grain-of-wheat bulbs work well, but painting them different colors does not always work.
my airport will be on a scale of 1:500, with 4 terminal buildings, 2 of which will be satellites of the massive United Airlines terminal i am buildling.
i currently have over 70 herpa models, and i am very pleased with the wide variety of the models, and it grows continuously, with new models coming out bi-monthly. my airport will have 2 16-18 foot parallel runways, equal in scale to 8000' and 9000', respectively. this airport is a fantasy airport, and it will be a "tri-hub". i have numerous models of United, American, and Delta aircraft, which will be the three major airlines at my airport.
anyways, i have heard that THIS year herpa plans to announce a lighting system for airport dioramas. this will be announced at the nuremburg toy fair, (whenever that is). in any case, good luck with all of your airports, and i'll keep you posted about the progress i make with my airport..
"my soul is in the sky" - shakespeare