| O |
Open |
| O |
Orange |
| O/C |
Open Circuit |
| O/P |
Output |
| Org Per |
Organic Peroxide |
| Oxy M |
Oxidizing Material |
| Oak |
[USA] Nom de code du Kawanishi K10W |
| OASIS |
[USA] Over-the-horizon Airborne Sensor Information System |
| OAT |
Outside Air Temperature |
| OBA |
Oxygen Breathing Apparatus |
| Oboe |
[UK] Système de Navigation développé en grande-bretagne pendant la seconde guerre mondiale. |
| OBOGS |
[USA] On Board Oxygen Generating System |
| OBRM |
On Board Replaceable Module |
| OBS |
Omni Bearing Selector |
| OBSV |
Observation |
| OBSVR |
Observer |
| OC |
On Condition |
| OC |
Open Circuit |
| OC |
Order Card |
| OC |
Overcurrent |
| OC |
Officer Commanding |
| OCA |
[USA] Offensive Counter Air |
| OCA |
Obstacle Clearance Altitude |
| OCCPD |
Occupied |
| OCCPNT |
Occupant |
| Ocean Safari |
[UK] Exercice. |
| Ocean Venture |
[UK] Exercice. |
| Ocelot |
[Allied] Nom de code d'un code utilisé par la Luftwaffe, pouvant être décodé par les services de renseignement alliés. |
| OCH |
Obstacle Clearance Height |
| OCL |
Obstacle Clearance Limit |
| OCONUS |
[USA] Outside Continental United States |
| OCS |
Obstacle Clearance Surface |
| OCU |
[UK] Operational Conversion Unit |
| OCU |
[USA] Operational Capability Update |
| OD |
Outside Diameter |
| Odd Rods |
[NATO] IFF à la sauce russe |
| ODR |
Omnidirection Range |
| OEB |
Operating Empty Weight |
| OEU |
[UK] Operational Evaluation Unit |
| OF |
Overfrequency |
| OFFR |
Off/Reset |
| OFST |
Offset |
| OG |
[USA] Operations Group |
| OGE |
Out of Ground Effect. |
| OGV |
Outlet Guide Vane |
| OH |
Opposite Hand |
| OHL |
[Germany] Oberste Heeresleitung - Commandement suprême de l'armée. |
| OHSC |
Overhead Stowage Compartment |
| OHU |
Optical Head Unit |
| OH-X |
[Japan] Hélico léger armé d'observation. |
| OIS |
[USA] Orbit Improvement System, pour le E-6 Mercury. |
| OIT |
Oil Inlet Temperature |
| OIT |
Operator Information Telex |
| OK |
Correct |
| OKB |
[USSR] Design Bureau |
| OKO |
[USSR] Optny Konstruktorsky Otdel - Section de design expérimental |
| OL |
Operating Location. |
| OLIVER |
Output Level Intended for Very Excellent Reproduction |
| OLMS |
Operational Loads Monitoring System |
| OLW |
Operational Landing Weight |
| Olympic |
[USA] Plan d'invasion de l'île japonaise de Kyushu. 1945. |
| Olympic Fire |
[USA] Missions U-2 de surveillance depuis Patrick AFB, Florida. |
| Olympic Harvest |
[USA] Missions U-2 de surveillance depuis RAF Akrotiri, Cyprus. |
| Olympic Torch |
[USA] Missions U-2 de surveillance depuis Osan AFB, South Korea. |
| O&M |
Operations & Maintenance |
| OM |
ILS Outer Marker |
| OM |
Outer Marker |
| OM |
Overhaul Manual |
| Omaha Beach |
[Allied] Une des plages de débarquement US de 'Overlord'. |
| Omar |
[USA] Nom de code du Suzukaze 20. N'a jamais existé. |
| Omega |
Long-range navigation aid. |
| OMM |
Overhaul Manual Manufacturer |
| OMS |
Onboard Maintenance System |
| OMTBF |
Observed Mean Time Between Failure |
| OMV |
Overhaul Manual Vector |
| ONS |
Omega Navigation System |
| ONR |
[USA] Office of Naval Research. |
| OOA |
[USA] Orbiting Optical Adjunct. Boeing 767 de tests de l'US Army évaluant un système Hughes permettant de détecter des objets orbitants. |
| OOD |
[USA] Officer of the Deck (USN) |
| OOD |
[USA] Officer of the Watch (USN) |
| OOT |
Oil Outlet Temperature |
| OP |
Opalescent |
| OP |
Operational |
| OP |
Operator |
| OPAL |
Order Processing Automated Line |
| OPC |
[Australia] Offshore Patrol Combatants |
| OPCON |
[USA] Operational Control |
| Open Skies |
[USA] Proposition d'autoriser des vols de reconnaissance mutuelle au-dessus du territoire des superpuissances. Accepté après la fin de la guerre froide. |
| OPER |
Operative/Operation/Operating |
| OPL |
Officier Pilote de Ligne |
| Operation Bolo |
[USA] Opération au Vietnam, le 2 January 1967, qui se conclut par 7 MiG-21 abattus par les F-4. Opération dirigée par le célèbre Colonel Robin Odds. |
| OPORD |
[USA] Operation Order |
| OPNG |
Opening |
| OPP |
Opposite |
| OPPLAN |
[USA] Operation Plan |
| OPS |
Operation |
| OPS |
Operations |
| OPT |
Optional |
| OPTL |
Optional |
| OPU |
Overspeed Protection Unit |
| OPV |
Overpressure Valve |
| OR |
[UK] Operational Requirement |
| Orange Crop |
ESM system. |
| Orange Herald |
[UK] Bombe nucléaire. 720 kilotonnes. Probablement seulement expérimentale. |
| ORB |
[UK] Operations Record Books. |
| Orchidee |
[France] Observatoire Radar Coherent Heliporte d'Investigation des Elements Ennemis |
| ORE |
[USA] Operational Readiness Evaluation |
| ORF |
Orifice |
| ORI |
[USA] Operational Readiness Inspection. |
| Orient Excess |
[USA] Missions SIGINT, le long des côtes chinoises depuis les bases du japon dans les années 60. |
| Orient Express |
[UK] Exercice dans l'océan indien en 1983. |
| ORM |
Onboard Replaceable Module |
| ORP |
[UK] RAF: Operational Readiness Platform |
| ORS |
[Allied] Operational Research Section |
| ORZ |
Omni Range Zero |
| OSA |
[USA] Operational Support Airlift / Aircraft |
| OSC |
Oscillator |
| Oscar |
[USA] Nom de code du Nakajima Ki.43 Hayabusa |
| OSCE |
Organization for Security and Co-operation in Europe. |
| OSG |
Overspeed Safety Governor |
| Osirak |
[Iraq] Réacteur nucléaire près de Bagdad, en Irak. Bombardé et détruit par des F-16 israéliens escortés par des F-15 le 7 juin 1981. |
| OSS |
[USA] Operational Support Squadron |
| OSS |
[USA] Office of Secret Services. |
| OSSV |
[USSR] Ogrnichenie i sokrashchenie stratigicheskykh vooruzhenii - START |
| OSV |
[USSR] Ogranichenie stratigicheskykh vooruzhenii - SALT |
| OTH |
Over The Horizon. |
| OTHB |
[USA] Over The Horizon Backscatter - Développement de radar. |
| OTOW |
Operational Take-Off Weight |
| OTP |
[UK] Operational Training Phase |
| OUT |
Outlet |
| OUT |
Output |
| OUTB |
Outbound |
| OUTBD |
Outboard |
| OUTR |
Outer |
| OV |
Over |
| OVBD |
Overboard |
| Overlord |
[Allied] Opération d'invasion des côtes normandes lancée le 6 Juin 1944. Succès. |
| OVF |
Over Frequency |
| OVFL |
Overflow |
| OVHD |
Overhead |
| OVHT |
Overheat |
| OVLD |
Overload |
| OVPRESS |
Overpressure |
| OVRD |
Override |
| OVSP |
Overspeed |
| OVSTEER |
Oversteer |
| OVV |
Overvoltage |
| OW |
OuterWing |
| OWE |
Operating Weight Enpty |
| OWE |
Operating Weight Empty |
| Oxcart [USA] |
Nom de code du A-12, précurseur du SR-71 |
| OXY |
Oxygen |
| OZ |
Ounce |
| O2 |
Oxygene (Symbol) |
