Thanks for this. i appreciate your assistance. Although I would be pushing my luck in asking for more.
According to CASA Australia's Manual of Standards Part 139 - Aerodromes, they have a brief listing of aircraft along with their rating (Ie 1B, 2A, 4C etc) as well as their respective ARFL (Aeroplane Reference Field Length), wingspan, OMGWS (?), Length, MTOW and Tyre Pressure. Most of these I can get of the relevant Manufacturer sites, but I am happy with ARFL, wingspan and Outer main gear span as these are the main factors to calculate a Aerodrome reference code (ARC).
Thanks again for your assistance and link.
JBo, Thank you for your advice as well. I might also Try posting this on Tech Ops.