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IAE Question And MD-11 Question  
User currently offlineEjaymd11 From United States of America, joined Feb 2001, 193 posts, RR: 0
Posted (14 years 11 months 2 weeks 6 hours ago) and read 2500 times:

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

3 replies: All unread, jump to last
User currently offlinePrebennorholm From Denmark, joined Mar 2000, 7136 posts, RR: 53
Reply 1, posted (14 years 11 months 2 weeks 5 hours ago) and read 2476 times:

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
User currently offlineFDXmech From United States of America, joined Mar 2000, 3251 posts, RR: 30
Reply 2, posted (14 years 11 months 1 week 6 days 9 hours ago) and read 2457 times:

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.
User currently offlineEjaymd11 From United States of America, joined Feb 2001, 193 posts, RR: 0
Reply 3, posted (14 years 11 months 1 week 6 days 9 hours ago) and read 2456 times:

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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