Topic Author
Posts: 180
Joined: Thu Feb 22, 2001 8:04 am

IAE Question And MD-11 Question

Tue Jun 19, 2001 4:09 am

I have 2 questions. Does International Aero only make engines for single aisle aircraft, and how would a wing stretch from 169 feet to about 198 feet affect the performance of the MD-11. Good or Bad what you think.

Ejay MD-11
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RE: IAE Question And MD-11 Question

Tue Jun 19, 2001 4:45 am

IAE engines are used on MD-90 and some A320 family planes.

A wing is an intergrated part of a plane and you cannot just shrink or extend its span without a lot of consequenses on the design of the rest of the plane. Tail, controls etc.
With unchanged sweep back angle the balance will change if you don't move the wing root forward. If you do that the space for the landing gear goes to pieces, and the structures, which connect the landing gear and the heavy wing, must be totally redesigned.
Increased wing span means a lot heavier wing structure.

A 30 feet extended wing span means an entirely new plane. An MD-11 optimized for a 200 feet wing would be the nearest thing you could come to a three engined 747-400, and it would share very few design features with the original MD-11.

Best regards, Preben Norholm
Always keep your number of landings equal to your number of take-offs
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RE: IAE Question And MD-11 Question

Wed Jun 20, 2001 12:51 am

Well, technicalities aside. If MDD incorporated a new wing with the initial design, they might well be in business today (or at least sold a bunch more planes).
You're only as good as your last departure.
Topic Author
Posts: 180
Joined: Thu Feb 22, 2001 8:04 am

RE: IAE Question And MD-11 Question

Wed Jun 20, 2001 1:07 am

But doesn't the MD-11 have a new wing design that Boeig is going to use in the 747xstretch called the wedge wing design, what exactly is that.

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