Acronyms and Abbreviations


ADS

automatic dependent surveillance

ATC

air traffic control

ATIS

air terminal information system

ATM

air traffic management

ATREX

Air Turbo Rocket Expander Cycle


BWB

blended-wing body


CFD

computational fluid dynamics

CNS

communications/navigation/surveillance

CO

carbon monoxide

CO2

carbon dioxide


DOD

U.S. Department of Defense


FAA

Federal Aviation Administration


GPS

Global Positioning System


LACE

liquid air cycle engine

LEO

low-earth orbit


MEMS

microelectromechanical systems


NASA

National Aeronautics and Space Administration

NIH

National Institutes of Health

NOx

nitrous oxide



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OCR for page 103
Maintaining U.S. Leadership in Aeronautics: Breakthrough Technologies to Meet Future Air and Space Transportation Needs and Goals Acronyms and Abbreviations ADS automatic dependent surveillance ATC air traffic control ATIS air terminal information system ATM air traffic management ATREX Air Turbo Rocket Expander Cycle BWB blended-wing body CFD computational fluid dynamics CNS communications/navigation/surveillance CO carbon monoxide CO2 carbon dioxide DOD U.S. Department of Defense FAA Federal Aviation Administration GPS Global Positioning System LACE liquid air cycle engine LEO low-earth orbit MEMS microelectromechanical systems NASA National Aeronautics and Space Administration NIH National Institutes of Health NOx nitrous oxide

OCR for page 103
Maintaining U.S. Leadership in Aeronautics: Breakthrough Technologies to Meet Future Air and Space Transportation Needs and Goals NRC National Research Council NSF National Science Foundation NSTC National Science and Technology Council ODW oblique detonation wave OSTP Office of Science and Technology Policy PDW pulse detonation wave R&D research and development RLV reusable launch vehicle SO2 sodium dioxide TRL technology readiness level T/W thrust-to-weight ratio UAV uninhabited air vehicle V/STOL vertical/short takeoff and landing V&V validation and verification