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The DC9 And The MD80's  
User currently offlineQXatFAT From Israel, joined Feb 2006, 2405 posts, RR: 5
Posted (7 years 5 months 2 days 23 hours ago) and read 2193 times:

So when I look on different websites it will give MD80's another model number as an DC9 as well. Are these planes the same?

What are the differences or similarites of lets say an MD82 or 83 and an DC9?

Thanks

Kyle
QXatFAT


Don't Tread On Me!
5 replies: All unread, jump to last
 
User currently offlineASMD11 From United States of America, joined Nov 2005, 111 posts, RR: 0
Reply 1, posted (7 years 5 months 2 days 23 hours ago) and read 2139 times:

When the MD-80 was introduced it was so as the DC-9-80 aka DC-9 Super 80 IIRC the MD-87 and MD-88 were the first ones to receive such designation with the others being DC-9-80/81/82/83 until then. Of course I'm probably wrong, but you never know, I have been known to know a thing or two before.  Smile

User currently offlineTdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 80
Reply 2, posted (7 years 5 months 2 days 22 hours ago) and read 2112 times:

Quoting QXatFAT (Thread starter):
So when I look on different websites it will give MD80's another model number as an DC9 as well. Are these planes the same?

For most purposes, yes. A lot of the MD-x are certified as DC-9-x but sold/marketed as MD-x.

The chronology went like this:
DC-9-10
DC-9-15 (increased fuel & GW)
DC-9-20 (larger engines and better wing)
DC-9-30 (-20 stretch)
DC-9-40 (-30 stretch)
DC-9-50 (-40 stretch + larger engines)
DC-9-80 (DC-9-50 stretch, post McDonnell Douglas merger), marketed as MD-80
DC-9-81/82/83 (range/weight/thrust increases), marketed as MD-81/82/83
DC-9-87 (shrunk DC-9-82), marketed as MD-87
MD-88 (recertified DC-9-82 with improved flight deck)
MD-90 (stretch + GW + IAE engines)
MD-95 became 717-200 post merger (structurally similar to the DC-9-87 but a complete system overhaul)

Tom.


User currently offlineFBU 4EVER! From Norway, joined Jan 2001, 998 posts, RR: 7
Reply 3, posted (7 years 5 months 2 days 19 hours ago) and read 2002 times:

The DC-9-80 introduced a 30% larger wing,larger horizontal stabilizer,larger engines,different main gear legs,different flight guidance system,autoland capability and autobrakes,brakes being an option.There were also upgrades to the electrical and hydraulic systems.

Launched in the very late 70's as the DC-9-80,or Super-80,initial versions were the DC-9-81 and the DC-9-82 with uprated engines and higher operating weights.DC-9-83 had even more powerful engines,weights and 1 or 2 auxiliary fuel tanks in the cargo hold for long-range operations.Some airlines upgraded their DC-9-80's with an EFIS cockpit (Scandinavian Airlines did this) and started calling them MD-80's which was the designation McDD was using in their marketing efforts.

The MD-87 was a shorter fuselage version of the MD-82 with a taller "top hat" fin also used on the MD-90 and MD-95.It also had the option of extra fuel tanks.

The MD-88 was the initial factory version with EFIS,later introduced on the production line for the other versions,as well.It also had provisions for mounting propfan engines under development at the time.

The MD-90 did away with the PW engines and had V2500's instead,new electrics,changes to the flight control systems and many,many more minor modifications.Main failure of the MD-90 was it's wing.It was really too small for the added weights of the MD-90,with high altitude performance suffering.

The major difference in the old "classic" DC-9-series,apart from the fuselage lengths,was the introduction of the wider span,slotted wing of the -20/-30/-40/-50 versions.



"Luck and superstition wins all the time"!
User currently offlineAirTran717 From United States of America, joined Aug 2006, 746 posts, RR: 4
Reply 4, posted (7 years 5 months 2 days 18 hours ago) and read 1940 times:

Avionics were also greatly updated from the DC-9's. To simplify, they are the same frame with different components throughout.

User currently offlineKnightsofmalta From Malta, joined Nov 2005, 1843 posts, RR: 19
Reply 5, posted (7 years 5 months 2 days 18 hours ago) and read 1920 times:

I always think it's so cool on Alitalia, they refer to them as the "Super Ottanta". Sounds very stylish!

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