WMUPilot From United States of America, joined Jan 2003, 1473 posts, RR: 11
Reply 1, posted (12 years 4 months 1 week 5 days ago) and read 5105 times:
The APU of the MD-90 was upgraded to the Allied Signal/Garrett 131-9(D) Auxiliary Power Unit. A new Internal Reference System was also installed to eliminate any compass irregularities. The engines were upgraded to the V2500-D5 from IAE and a new pylon was used to attached the engine to the fuselage. The wing of the MD-90 is basically the same as the MD-88 only strengthened.
I happen to have a book on the design of the MD-90 and such. Quite a good book. Oddly enough the book is about Airline Photography.
Brick From United States of America, joined Aug 1999, 1655 posts, RR: 7
Reply 4, posted (12 years 4 months 1 week 4 days 10 hours ago) and read 4799 times:
The book you're referring to is Airliners in Flight by Nick Veronico and George Hall. Chapter 1, "The Making of a Jetliner", covers in detail the MD-90 program. I too was surprised to see this in a aviation photography book.
Elwood64151 From United States of America, joined Feb 2002, 2477 posts, RR: 5
Reply 6, posted (12 years 4 months 1 week 4 days 7 hours ago) and read 4706 times:
Another good reference is "The Story of the MD-80 and MD-90." It has a listing of every MD-80 and MD-90 ever made and what airline or leasing agent owned it initially, as well as who operated it first. It was written in 1997, so it doesn't have them all, but it's fairly complete and a good read.
It also talks about the development of the MD-95 (read 717) and the original American twin-jet, the DC-9.
I do not know if there is an updated version of the book.
Those who fail to learn history are doomed to repeat it in summer school.
Dsuairptman From United States of America, joined Jul 2003, 927 posts, RR: 0
Reply 8, posted (12 years 4 months 1 week 3 days 23 hours ago) and read 4523 times:
Intresting, I thought the engines where the only things that seperated the two types. I also thought that both modles appeared at the same time, so can anyone tell me how many years their are between the types debut. Also does Delta still fly the 90s ?
Trintocan From United Kingdom, joined Apr 2000, 3290 posts, RR: 4
Reply 9, posted (12 years 4 months 1 week 3 days 21 hours ago) and read 4435 times:
The MD88 first flew in 1987 and is basically an MD82 with new avionics and interior fittings. It was largely built at the behest of Delta, with just a few other carriers using the type. The MD90, by contrast, is a newer type with stretched fuselage, new IAE V2500 turbofans and further upgrades to the avionics suite. The tailfin is also of the taller type as first featured on the MD87. The MD90 first flew in 1993. Production of the MD90 ceased in 1999 while production of the MD80 ended in 2000 - interestingly the MD83 was the last model built, the last being an order of 16 for TWA.
Dutchjet From Netherlands, joined Oct 2000, 7864 posts, RR: 56
Reply 14, posted (12 years 4 months 2 days 11 hours ago) and read 4178 times:
You are right, the last MD80s built were the MD83 for TWA.....all members of the MD80 family were build concurrently and TWA, which bit by bit built a large fleet of MD81/82/83 aircraft with new build and second hand aircraft, stuck with the "earlier type" and did not opt for the MD88 with the upgraded cockpit. I assume that TWA did not want to introduce an additional sub-type to its fleet.
Mech24 From United States of America, joined Jul 2001, 61 posts, RR: 0
Reply 21, posted (12 years 4 months 2 days 3 hours ago) and read 3865 times:
DL still operates all 16 of it's MD-90s, many if not all have gone through their first HMV. FYI- the V2500 is also a FADEC engine. MD-90 also has audio and video, which the MD-88 does not. The toilets on the MD-90 are also vacuum type.