If only...

DC-9 Super 90 Original design study that ultimately led to the MD-90 family
MD-90 Series 30 Initial production model intended to replace the MD-83; 113 built
MD-90-30ER Extended range model based on the Series 30 but with additional fuel tanks in the forward cargo hold and strengthened wing structure for operation at higher gross weights; 3 built
MD-90-30IGW Increased Gross Weight variant of the Series 30 with strengthened wing structure and landing gear; 1 built
MD-90-30T Trunkliner Proposed 147-passenger model with dual main landing gear for operation from rough airfields, was to have been built by Shanghai Aviation Industrial Corporation for Chinese operators; cancelled
MD-90 Series 10 Proposed shortened fuselage model to carry reduced passenger loads of 111 to 116, intended to replace the MD-87; cancelled
MD-90 Series 40 Proposed stretched model for up to 181 passengers; cancelled
MD-90-40EC Proposed Series 40 variant with increased payload and fuel capacity for European operators; cancelled
MD-90 Series 50 Proposed extended range model with additional fuel capacity and increased gross takeoff weight; cancelled
MD-90-55 Similar to the Series 50 but with a revised cabin layout making room for up to 187 passengers; cancelled


Fly DC Jets! Where's my choir?