NOSIG
I can understand the rules' application to a faster CAT C acft but how about a fast CAT B? Without descending on downwind, which i thinks contradicts the reason for the implamentation of the 1500' >120kt cct, the question becomes do you allow for a greater rate of decent and keep the cct tight, extend the downwind, or don't apply the recommended procedure altogether?
quote.....
A bit different in that one is a VFR cct (1000' or 1500') and the other refers to a IFR cct (max circling speeds..Cat A=100, Cat B=135, Cat C=180 Cat D=205) to keep you within the cicling areas of the aerodrome for the Cat.
Generally don't have a rate of descent greater than 1000fpm (plus other limits) for final.
A good RoD is 3 x G/S for a 3 degree slope, or thereabouts, and that can begin on downwind.
Based on having a stabilized approach for a landing.
Remember the old saying 'can't have a good landing from a bad approach'.