Airport Reference code is the Approach Cat and wingspan, hence the Cat C-III, with the reference speed for approach.
There is only one CAT allowed per aircraft, that is in all of the criteria.
Some States allow the pilot to use a higher CAT, depending on approach conditions.
TERPS/ICAO are design criteria for approach parameters, which include winds, aircraft cert approach speed does not. The approach speeds on final are based on Vref with a max per the CAT, it doesnt say how you get there, and MLW is not part of that...
The Aircraft certification is much different.
Last edited by FlightPathOBN; 4th Jan 2013 at 16:54.