As you know efficient airplanes are a must have. There is a formula to calculate how efficient a plane is. On the aircraft information screen divide the fuel flow of the current engines you have/want to use by the number of TOTAL seats in any configuration. The lower the number the better. Not many people know that the Hawker Siddeley Trident 3B is more efficient then a 737-200 Adv., 727-200 Adv etc., etc.. This is towards people who do not know how or want to know the efficiency of an airplane. STAY AWAY FROM 707'S AND DC-8'S!!!!! THEY ARE ONE OF THE MOST INEFFICIENT PLANES IN THE GAME!!!!!
Good Luck!!!
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