Helicopter and NASA Ames Research Center. Simultaneous noninterfering operations would require the same technologies that would enable multi-aircraft runway occupancy.
Considerable vehicle technology development for V/STOL aircraft, such as tilt-rotors, will be necessary to make them economical, reliable and safe. Therefore, R&D on propulsion systems, structures and materials, and vehicle configurations should be assessed for their potential applicability to V/STOL aircraft.
Recommendation. To further the goal of tripling the aviation system throughput in 10 years, NASA should support R&D focused on mitigating terminal area constraints. The most promising areas of focus include the reduction of runway occupancy time, the mitigation of aircraft wake vortices, and the operation of V/STOL air vehicles at existing airports. Existing government-funded initiatives which are seeking to improve throughput at airports, such as the NASA Terminal Area Productivity program, should support R&D in these three areas.
NRC. 1997. U.S. Supersonic Commercial Aircraft: Assessing NASA's High-Speed Research Program. Aeronautics and Space Engineering Board, Committee on High Speed Research. Washington, D.C.: National Academy Press.