HazelNuts39
Nomenclature. It is important I understand your description. A "Baseline" machine to me is its original "Design". One seldom starts with the nephew and progresses toward the Grand Uncle. So it seems to me counterintuitive in the least.
I note your numbers and explanations, and I believe your representation of the 900 family. So I would ask, if the most powerful powerplant has the same construction, core, wheels and limits (Temperature and RPM), as the least powerful, then this appears rather strange. Airbus "found" 6k lbs. of extra weight on the whale, necessitating more thrust available at Take-off at MGW. The result was the 972, I believe, a hurried iteration with a new Data Entry Plug. Why on Earth develop an engine with X Thrust, then derate (make unavailable) its Power??
Can you help me out with a more basic explanation, then?
thanks
bear