There is a 1.2% fuel penalty allowed for in the computer flight plans. There is also take off performance considerations, nominally 100kg off the performance limited TOW. Also enroute climb limits not a problem in Aus.
Wow that's a big fuel penalty, if you start calculating the number of hours a day they fly. Anyone know how they figure the economics of it out? I thought the last thing you want to do in a aeroplane is increase your fuel burn. Funny how they cry green with so much other BS yet they are happy to start burning more juice.
Will the Embraer have the same problem or will they be fit flush/under the airframe?