NEP – Nuclear Electric Propulsion
PBN – Performance Based Navigation
AFCS – Automatic Flight Control System
PIT – Pulsed Inductive Thruster
RCS – Reaction Control System
VASIMR – Variable Specific Impulse Magnetoplasma Rocket
GNSS – Global Navigation Satellite System
MPDT – Magnetoplasmadynmic Thruster
RMI – Radio Magnetic Indicator
IPS – Interplanetary Superhighway
UAV – Unmanned Aerial Vehicle
LSS – Longitudinal Static Stability
ICE – Internal Combustion Engine
WIG – Wing in Ground effect
VG – Vortex Generator
FBW – Fly by Wire
ACTE – Adaptive Compliant Trailing Edge
EFD – Electrofluiddynamics
LEX – Leading Edge Extension
CCW – Circulation Control Wing
TEI – Trans-Earth Injection
TLI – Trans-Lunar Injection
HDLT – Helicon Double Layer Thruster
VAT – Vacuum Arc Thruster
SFC – Specific Fuel Consumption
CG – Center of Gravity
ASI – Airspeed Indicator
LACE – Liquid Air cycle Engine
RDF – Radio Direction Finder
FOG – Fiber Optic Gyroscope
GLOW – Gross Lift Off Mass
AAR – Air Augmented Rocket
MAC – Mean Aerodynamic Chord
HAMSEL – Height Above Mean Sea Level
LOX – Liquid Oxygen
SAFE – Safe Affordable Fission Engine
LSALT – Lowest Safe Altitude
BLC – Boundary Layer Control
LERX – Leading Edge Root Extension
AOA – Angle of Attack
CXT – Charge Exchange Thruster
EHD – Electrodynamics
ABEP – Atmosphere Breathing Electric Propulsion
CCGT – Closed Cycle Gas Turbine
RNP – Required Navigation Performance
RPA – Remotely Piloted Aircraft
ILS – Instrument Landing System
CPDL – Controller Pilot Data Link
GPS – Global Positioning System
ATC – Air Traffic Control
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