Originally Posted by
tomcat264
It will vary between airports. Its not just the CATIII ILS but also CATIII approach lighting, CATIII runway lighting & CATIII taxiway lighting and an up graded power supply to power all those lights. Without naming an airport but the cost is $36 million for a one particular airport in Australia
It depends on what needs to be done. I know that one of the issues PER had is that all the lights for the entire airport were wired through the old control tower. So when they wanted to expand the apron (and planning the CAT III further down the track) the actual cost was a truck load more than would normally be the case because of the untangling and re routing that needed to be done.