OPTEVFOR
Optic Cobra
Optic Needle
Optical Airborne Measurement Program (OAMP)
Optical Coating
Optical Processing
OR
OR/SA (ORSA)
ORACL
ORACL HYLTE
ORACLE HYLTE
Orbital Elements
Orbital Maneuvering Vehicle (OMV)
Orbital Suborbital Program (OSP)
Orbiting Debris
| ORC
ORCA
ORD
ORDALT
Order of Battle
Order Wire Message
Organic
Ornate Impact
ORNL
ORTA
ORU
ORWG
OS
OSA
OSC
|