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This paper discusses the techniques and technologies Human Factors uses to incorporate safety, comfort, and advancing technologies in the aircraft cabin. Specific topics addressed include accommodation for various user populations (e.g., reach, clearances, lifting), operation of required equipment, information transfer, passenger comfort and convenience, as well as passenger and flight attendant behavioral issues. The content includes a review of typical human-cabin interface case studies. These design projects include a description of the multiple-design requirements that cabin enhancements must meet. Finally, the paper includes a description of on-going efforts to increase the extent and quality of the human-aircraft cabin interface.

The paper provides an overview of the renewed interest in turboprop propulsion systems for future commercial transport designs. The potential operating cost advantage of advanced turboprop designs is shown relative to advanced turbofan designs. Critical technology items for the aerodynamic installation of turboprop propulsion systems are presented, along with experimental results addressing the main technology issue for wing-mounted turboprop installations. Nacelle installation effects are presented for overwing and underwing nacelles. The drag reduction for nacelle contouring is also shown. Wing/nacelle/power data are presented for the baseline wing geometry and for a wing modified to reduce the propeller power effects.