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Uninhabited Air Vehicles: Enabling Science for Military Systems
nonlinear, unsteady aerodynamics
simulation of flow fields for complex configurations
modeling tools for propulsion-airframe integration
stiff, lightweight structures for highly-loaded propulsion systems
fluid seals
high-load, long-life bearings
probabilistic structural design methods for a high-speed, high-g environment
automated manufacturing processes for high-performance structural materials
Very low-cost UAVs were considered as a focal point for trade-offs of cost against performance in vehicle design. The following key subsystem technologies will enable the development of very low-cost UAVs:
very low Reynolds number aerodynamics
bearings for long-term storage
low-cost accessories for propulsion systems (e.g., fuel pumps, engine controls, and electrical generators)
structural design criteria for expendable, low-use systems
expanded suite of structural materials (including low-cost, commoditygrade materials)
modular designs for low-cost manufacture
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Some important research and development programs in composite materials and structures, such as NASA’s High Speed Research Program, have recently been discontinued.
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