C Acronyms and Abbreviations
AIAA
American Institute of Aeronautics and AstronauticsAPSE
aircraft-pilot servo-elastic or aero-propulsive servo-elastic (phenomena)
CAEP
Civil Aviation Environmental Protection Committee (of the International Civil Aviation Organization)
CMC
ceramic matrix composites
CO2
carbon dioxide
DARPA
Defense Advanced Research Projects Agency
FAA
Federal Aviation Administration
FAR
Federal Aviation Regulations
ft
feet
g
gram
hr
hour
HSCT
high-speed civil transport
HSR
High Speed Research (Program)
ICAO
International Civil Aviation Organization
kg
kilogram
lb
pound
L/D
lift-to-drag ratio
LERD
limited exclusive rights data
mSv
millisievert (a unit of ionizing radiation calibrated to measure potential biological harm; 1 mSv is roughly the daily dose due to natural background radiation)
NASA
National Aeronautics and Space Administration
NM
nautical miles
NOx
oxides of nitrogen
NRC
National Research Council
PETI-5
phenylethynyl-terminated imide (a high temperature composite resin)
PDE
pulse detonation engine
psf
pounds per square foot
QSP
Quiet Supersonic Platform (Program)
R&T
research and technology
SBJ
supersonic business jet
SOx
oxides of sulfur
SST
supersonic transport (either the program or the aircraft of the same name)
TOGW
takeoff gross weight
TRL
technology readiness level
TSFC
thrust-specific fuel consumption
TSFC/M
thrust-specific fuel consumption normalized to Mach number
USAF
U.S. Air Force
UV
ultraviolet