Technical and Economic Assessment of Span-distributed Loading Cargo Aircraft Concepts: Final ReportLangley Research Center, National Aeronautics and Space Administration, 1976 - 217 pages |
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1000 lb Figure 1990 technology 2000 Maximum gross aerodynamic air gear airfoil airplane investment cost Aluminum honeycomb panel aspect ratio based on carrying bays t/c carrying 118 containerized density cruise design range Direct operating cost distributed-load DOC plus AIC Dutch roll economics empty weight factor 5232 km flap Fleet pricing based flight form drag four-bay freighter Fuel tank gross payload load gross weight ground effects horizontal tail induced drag Installation interference drag kg lb kg/m³ 10 lb/ft³ landing gear lift coefficient load factor 5232 Mach number Maximum gross payload Nacelle NCD cargo operating cost DOC optimum outer face sheet parametric study parasite drag payload density payload load factor pitching moments propulsion range factor reference airplane reference configuration RTM's selected configuration shown in figure structural takeoff thickness ratio thrust tip fins trailing edge versus Vertical tail Wing span