MD-90 / DeltaMcDonnell Douglas MD 90 Delta Airlines airplane model. The MD 90 is the largest member of the Douglas McDonnell Douglas Boeing DC 9 MD 80 MD 90 717 family, and is a stretched, IAE V2500 powered development of the MD 80. The MD 90 program was launched in November 1988, first flight occurred on February 22, 1993, and certification was awarded on November 16, 1994. Launch customer was Delta Airlines. Mahogany wood. Scale: 1 100 Wingspan: 13 inches