|Quoting klm77 (Thread starter):|
What I wanted to ask is, if it is truly the exact same body, what's the point in owning an A333 when you could just get the A343 and get almost 2000km extra range.
The extra engines and such add about five tons to the empty weight of the plane (using Airbus' OEM figures). That extra weight and those extra engines also result in overall higher fuel burn and can result in a lower dispatch reliability (twice as many engines means statistically more chances for things to go wrong). The higher MTOW of the A340-300 increases airport and navigation fees, as well.
So if you don't need the extra range (which is more like 1500nm at MZFW), you can save fuel and and fees without sacrificing passenger or payload capacity.