Cat A
Thanks a ton Trog,
The basic difference is that where I'm operating right now ie; India, the DGCA has mandated that all offshore ops have to be Performance Class I (in vogue for more than 4yrs now).
Therefore Cat A, Part A kicks in restricting your load to WAT for Cat A Part A, which works out to 11000lbs (SL, 30deg C) for the EP with DF engines.
I guess this should be directly linked to the tgt tq (the tq that each DF eng is guaranteed to deliver OEI)?