Thanks Popgun ,this OEW tracks real close to QR's.
re engines, the CASA register shows VKA and VKD with GENx-1B64's and B,E,F,G and H with -1B64/P2G01. GE quote both engines at 298Kn take off thrust. I make that to be around 67000 pounds so I don't see them as being short on power. Piano-X uses the EIS value which I believe was 64K pounds.
Based on Popguns values and the 67k thrust the OOL numbers look something like this.
ISA +15 220t 7991ft 6021nm 764min
ISA +20 215t 8024ft 5622nm 715min
ISA +20 210t 8059ft 5200nm 664min
As usual E & OE
