|
ACS |
attitude control system |
|
AFRL |
Air Force Research Laboratory |
|
AFSPC |
Air Force Space Command |
|
AG&C |
adaptive guidance and control |
|
ALREST |
Advanced Liquid Rocket Engine Stability Technology |
|
ALSB |
Advanced Liquid Strap-on Booster |
|
APU |
Auxiliary Power Unit |
|
CBC |
common booster core |
|
CBT |
common bulkhead tanks |
|
CCAFS |
Cape Canaveral Air Force Station |
|
CFD |
computational fluid dynamics |
|
CI |
Continuous Improvement |
|
COMSAT |
communication satellite |
|
CONOPS |
concept of operations |
|
DDT&E |
design, development, test and evaluation |
|
DOD |
Department of Defense |
|
ECP |
Engineering Change Proposal |
|
EELV |
Evolved Expendable Launch Vehicle |
|
EMA |
electro-mechanical actuator |
|
ERB |
Engineering Review Board |
|
FAA |
Federal Aviation Administration |
|
FAST |
Future Responsive Access to Space Technologies |
|
FY |
fiscal year |
|
GAO |
Government Accountability Office |
|
GEO |
geosynchronous Earth orbit |
|
GG |
gas generator |
|
GSE |
ground support equipment |
|
GTO |
geosynchronous transfer orbit |
|
HC |
hydrocarbon |
|
HCB |
hydrocarbon boost |
|
HEO |
high Earth orbit |
|
IHPRPT |
Integrated High Performance Rocket Propulsion Technology |
|
IOC |
initial operating capability |
|
IOC |
initial operational capability |
|
IPA |
independent program assessment |
|
IPD |
Integrated Powerhead Demonstration |
|
Isp |
specific impulse |
|
ISS |
International Space Station |
|
IVHM |
integrated vehicle health management |
|
LCH4 |
liquid methane |
|
LCC |
life cycle cost |
|
LEO |
low Earth orbit |
|
LES |
large expendable stage |
|
LH2 |
liquid hydrogen |
|
LO2 |
liquid oxygen |
|
MCC |
main combustion chamber |
|
MEO |
medium Earth orbit |
|
MLP |
mobile launch platform |
|
MPS |
main propulsion system |
|
MR |
mixture ratio |
|
MSFC |
Marshall Space Flight Center (NASA) |
|
MST |
mobile service tower |
|
NAFCOM |
NASA/Air Force Cost Model |
|
NASA |
National Aeronautics and Space Administration |
|
NASP |
National AeroSpace Plane |
|
NPOESS |
National Polar-Orbiting Operational Environmental Satellite System |
|
NRC |
National Research Council |
|
ORSC |
oxygen rich, staged combustion |
|
PWR |
Pratt and Whitney Rocketdyne |
|
R&D |
research and development |
|
RBD |
reusable booster demonstrator |
|
RBS |
reusable booster system |
|
RECO |
rocket engine cut-off |
|
RLC |
recurring launch cost |
|
RLV |
reusable launch vehicle |
|
RP |
rocket propellant |
|
RTLS |
return to launch site |
|
S&T |
science and technology |
|
SES |
small expendable stage |
|
SLS |
Space Launch System |
|
SMC |
Space and Missile Systems Center |
|
SRB |
solid rocket booster |
|
SSME |
space shuttle main engine |
|
SSO |
Sun-synchronous orbit |
|
SSTO |
single stage to orbit |
|
TPA |
turbopump assembly |
|
TPS |
thermal protection system |
|
TRL |
technology readiness level |
|
TSTO |
two stages to orbit |
|
TVC |
thrust vector control |
|
VAFB |
Vandenberg Air Force Base |
|
VIF |
vertical integration facility |
|
VTHL |
vertical takeoff, horizontal landing |
|
WDR |
wet dress rehearsal |