Knowing that:. Dry operating mass: 110000 kg. Basic index: 119.1. Number of passengers: 185 distributed as shown in the annex (75 kg per PAX). Cargo load + luggage: 14000 kg distributed as shown in the annex.. Fuel: 42000 kg (Fuel shift -20)Stages ( 1) to (7) and (1 1) having already been calculated, the centre of gravity in % MAC (Mean Aerodynamic Chord) at take-off is located at: