| Acronym | Meaning |
![](file.png) | LCT | Launch Countdown |
![](file.png) | LCU | Inertial Components Temperature Controller |
![](file.png) | LCU | Line Coupling Unit |
![](file.png) | LCUG | Liquid Cooling Under Garment |
![](file.png) | LCVG | Liquid Cooling And Ventilation Garment |
![](file.png) | LCVG | Liquid Cooling And Ventilation Garment |
![](file.png) | LD | Lateral Direction |
![](file.png) | LD | LatLoading Dock |
![](file.png) | LDB | LauLogistics Data Bank |
![](file.png) | LDB | Launch Data Bus |
![](file.png) | LDEC | Lunar Docking Events Controller |
![](file.png) | LDEF | Long Duration ExPosure Facility |
![](file.png) | LDG | Landing |
![](file.png) | LDIU | Launch Data Interface Unit |
![](file.png) | LDMK | Landmark |
![](file.png) | LDR | Low Data Rate |
![](file.png) | LDR | LowData Rate |
![](file.png) | LDS | LanLanding |
![](file.png) | LDS | Landing/Deceleration Subsystem |
![](file.png) | LDS | LanLoads |
![](file.png) | LDT | Linear Displacement Transducer |
![](file.png) | LE | LauLeading Edge |
![](file.png) | LE | Launch Escape |
![](file.png) | LEA | Logistics Engineering Analysis (Analyses) |
![](file.png) | LEB | Lower Equipment Bay |
![](file.png) | LEC | Lockheed Electronics Company |
![](file.png) | LED | Light Emitting Diode |
![](file.png) | LED | Light-emitting Diode |
![](file.png) | LEH | Launch/Entry Helmet |
![](file.png) | LEM | Laboratory Environment Model |
![](file.png) | LEM | Launch Escape Monitor |
![](file.png) | LEO | Low Earth Orbit |
![](file.png) | LER | Long Eye Relief (Optics) |
![](file.png) | LERC | Lewis Research Center (Cleveland |
![](file.png) | LES | Launch Equipment Shop |
![](file.png) | LES | Launch Escape Subsystem |
![](file.png) | LESS | Leading Edge Structure Subsystem |
![](file.png) | LESS | Leading Edge Structure Subsystem |
![](file.png) | LESS | Leading Edge Subsystem |
![](file.png) | LETF | Launch Equipment Test Facility |
![](file.png) | LETF | Launch Equipment Test Facility (KSC) |
![](file.png) | LF | Launch Facility |
![](file.png) | LF | Launch Forward |
![](file.png) | LF | Left Forward |
![](file.png) | LF | Load Factor |
![](file.png) | LF | Low Frequency |
![](file.png) | LFAF | Low Frequency Accelerometer Flutter |
![](file.png) | LFAM | Low Frequency Accelerometer Modes |
![](file.png) | LFAP | Low Frequency Accelerometer Pogo |
![](file.png) | LFC | Large Format Camera |