Fleet communalty with MD90

[Airbuseric]

Why has it it's own fleet group? The 90s is based on the 80s and they share the same typerating. 

[Sami]

It's in a separate production line and in separate fleet group, as it's "completely" separate aircraft type. Same for 757/767, or A320 and A330 ... etc

There's no separate "maintenance fleet group" sort of thing for these, although for these cases it could be useful.

[tm07x]

It's in a separate production line and in separate fleet group, as it's "completely" separate aircraft type. Same for 757/767, or A320 and A330 ... etc

There's no separate "maintenance fleet group" sort of thing for these, although for these cases it could be useful.

So you're saying the "pilots" have to go through additional training?
The 767 and 757 share the same TR, same goes with MD-80 and MD-90.
There is also a bigger commonality between the ENTIRE Airbus fleet.
Once you've had an Airbus typerating, going up or down is more or less just an addition.

The 737 NG series is totally different from the Classics (300-500). Are these cost factors taken into account?

And also, the A330 and A340 are basically the same aircraft. Will those AC be considered two different models?

[Airbuseric]

A330 and A340 are in the same fleet group. They share the same fuselage and are almost identical to each other. The same way I see the MD90 are to the MD80. Just other engines...

[Monk Xion]

A330 and A340 are in the same fleet group. They share the same fuselage and are almost identical to each other. The same way I see the MD90 are to the MD80. Just other engines...

Agree. I think the B717 and the MD90 are closer in commonality tho... they were made around the same time, and have alot of the same features.

[swiftus27]

Here is the underlying problem....

Are you going to let someone combine any or all of the DC9, MD80, MD90, and B717 while saying that the B731-2 B733-6, B737-9 are different fleet groups!?!!?

[TFC1]

A330 and A340 are in the same fleet group. They share the same fuselage and are almost identical to each other. The same way I see the MD90 are to the MD80. Just other engines...

There are major differences between the MD80-series and the MD90. The main difference being the cockpit. The MD80 is essentially the same as the DC9-50, depending on which level og equipment ordered. The MD90 has a glass cockpit with little or no relation to the dials of the DC9s.

Although some airline operate both types with a "common" type rating, is often has involved an upgrade to the cockpit of the MD80.

And the MD88 is a separate story. Is is basically a MD82 with the upgraded cockpit of the MD87.

So if one is to nitpick this, there should be a group comprising of the MD81, MD82 and MD83 (essentially the DC9-81, -82 and -83), a group with the MD87, MD88 and MD90 due to similar equipment in the cockpit. And that is not considering the different engines on the MD87/88 and the MD90.

[Monk Xion]

Here is the underlying problem....

Are you going to let someone combine any or all of the DC9, MD80, MD90, and B717 while saying that the B731-2 B733-6, B737-9 are different fleet groups!?!!?

Combining the MD90 and B717 makes sence... because they are very similar... the 737s do not at all... since the -100s/-200s are totally different from the "Classics" (-300s/-400s/-500s) and the "NGs" (-600/-700/-800/-900), and vice versa

Same goes with the DC-9s and MD80s, because of the cockpits, engines and numerous other things.

[zorbon]

airn't the BAe System AVRO RJ's and the British Aerospace BAe 146 the same?

[Monk Xion]

airn't the BAe System AVRO RJ's and the British Aerospace BAe 146 the same?

Technially yes. They are built on the same type of airframs.. but the BAe 146 has an older cockpit, while the RJ'S have a modern cockpit.

Engines are also different too.