Boeing’s 767 has the right cross section for passenger transportation in the 225 passenger/5000nm segment.
Its wings and empennage are too large, however. We make them work harder by transporting the 767-300ER fuselage and passengers.
We also introduce aerodynamic and engine improvements. Still, the fuel consumption per seat mile is considerably higher than modern alternatives.
At a Cash Operating Cost and Direct Operating Cost level, the higher fuel consumption has less influence in today’s fuel prices. The result is that the 767-300ER becomes an interesting alternative as long as the fuel price stays low.