From: firstname.lastname@example.org (Terrell D. Drinkard) Organization: Boeing Commercial Airplane Group Date: 02 Feb 94 01:35:09 PST References: 1
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In article <email@example.com>, Jay Vassos-Libove <firstname.lastname@example.org> wrote: > [gobs deleted] > >(Technical question, to justify the posting... WHY did Airbus >design a 4 engine plane in the days of large Twins??) There are two reasons that I'm familiar with. One, there were no engines large enough at the time of the A340's launch. Note the 777 launched later and has a very aggressive engine development program in order to support the first flight date. The A330 has relatively large engines, but not big enough to give the heavier A340 the range it needed. The more politically correct (in Europe) answer is that the direct operating costs are reduced with four engines because of weight savings due to the dead weight bending moment relief of the outboard engines. This is extremely difficult to quantify, particularly given the announced level of wing commonality between the A330 and the A340. Makes one wonder which airplane is carrying the weight penalty of the other's engine arrangement. -- Terry email@example.com "Anyone who thinks they can hold the company responsible for what I say has more lawyers than sense."