DC-9 OPERATIONAL DESIGN FEATURES

Design features of the Douglas DC-9 as they relate to operational aspects are discussed in terms of:

1. 1.
   Reduction or elimination of flight crew procedures.
2. 2.
   Safety with particular emphasis on system backup capability in event of component malfunction.
3. 3.
   Improved maintenance characteristics and troubleshooting procedures.
4. 4.
   Flexibility to operate in various environments and under varying load requirements.

Both operational stature and economic suitability of an aircraft in service are dependent upon incorporation of these features.