747400sp From United States, joined Aug 2003, 1773 posts, RR: 2 Posted (2 years 7 months 2 weeks 13 hours ago) and read 706 times:
Hello
There was two designs for the MD-XX, one was a tri-jet design to replace 747 classic's. The other was a twin-jet wide body to compete with the 777. It hard to find anything on the web about these jet, but I thought some body here would know. What engines was they going to use, I have a feeling the tri-jet was going to use the A330 engines. Also was the twin-jet going to be larger or smaller than the 777?
Starlionblue From Greenland, joined Feb 2004, 13036 posts, RR: 57 Reply 1, posted (2 years 7 months 2 weeks 12 hours ago) and read 699 times:
Well I have a picture to get you started
According to "Giant Jetliners", MD looked at a variety of stretched MD-11s. One of these, from 1988, had the 330 wing, but in the end Airbus realized it would compete too closely with the 330 itself. After that, the MD-12X remained a trijet, even including a 550-seat MD-12XX. But MD had two problems:
1. Increasing payload and range requirements from the airlines (375 pax over 8000nm) pushed MTOW over 897000 lb. This mean the inlets had to be larger, and the banjo fitting in the tail (which holds the tail engine) had to be redesigned at enormous expense.
2. There was no money to finance such a project. Taiwanese funding was a possibility.
MD went back to the drawing board and put forward a twin deck double decker:
But in the end, it all came to nothing. The last hurrah for MD was the proposed BWB-1-1, a trijet Blended Wing body.
[Edited 2006-05-30 18:15:25]
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