Yes. All the MD-80 models except one are in fact DC-9 with updated cockpits and other minor improvements, and have a DC-9-81/82/83/87 rating. The MD-88 is the only one with it's own MD-80 type rating. In my opinion, MD-80 should be put together with DC-9 fleet type, MD-88 should be put with MD-90 (because they have the same cockpit and are very similar) and hopefully MD-95(B717-200).
Dividing fleet commonality more would be better. We already have engine commonality.
Current system with fixed aircraft types:
- Administrative costs / month
- Fixed maintenance costs / month
- Crew training / month
- Engines (seperate)
In my opinion, commonality should work like this, with different values affecting the commonality costs:
- Manufacturer/administrative/maintenance costs (20%)
- Engines/maintenance (30%)
- Type Rating/crew training/maintenance costs (50%)
A system like that would mean you would get an advantage running an all Airbus, all Boeing, all McDonnell Douglas or all Bombardier fleet for example. Type ratings are very easy to find, and would for instance mean that someone running an DC-9 fleet who would convert to a MD-80 fleet wouldn't pay any more commonality. But if he decides to include MD-88 he would have to pay 50% extra for the Type Rating. If he decided to add an MD-90 fleet he would have to pay the 30% increased commonality for the engines, but would not pay the extra 50% type rating costs for the MD-88.
It gets complicated, but it should be doable.
We already have a thread about something similar, but it's not in Feature requests.http://www.airwaysim.com/forum/index.php/topic,42331.0.html