Civil aviation dictionary
Aviation glossary
Terms, abbreviations and procedures explained without unnecessary jargon, with English names and clear definitions.
- Total entries
- 2480
- Terms
- 435
- Abbreviations
- 2045
O
- Abbreviationoceanic navigational error report
ONER stands for oceanic navigational error report in FAA terminology.
- AbbreviationOceanic Traffic Planning System
OTPS stands for Oceanic Traffic Planning System in FAA terminology.
- AbbreviationOff-airway Weather Station
OAW stands for Off-airway Weather Station in FAA terminology.
- AbbreviationOff-Line Aircraft Management Program
OAMP stands for Off-Line Aircraft Management Program in FAA terminology.
- NavigationOFF-ROUTE OBSTRUCTION CLEARANCE ALTITUDE (OROCA)
A published altitude which provides terrain and obstruction clearance with a 1,000 foot buffer in non-mountainous areas and a 2,000 foot buffer in designated mountainous areas within the United States, and a 3,000 foot buffer outside the US ADIZ.
- AbbreviationOffice of Aerospace Medicine
AAM stands for Office of Aerospace Medicine in FAA terminology.
- AbbreviationOffice of Airports Compliance and Field Operations
ACO stands for Office of Airports Compliance and Field Operations in FAA terminology.
- AbbreviationOffice of Aviation Policy and Plans
APO stands for Office of Aviation Policy and Plans in FAA terminology.
- AbbreviationOffice of Policy and International Affairs
API stands for Office of Policy and International Affairs in FAA terminology.
- AbbreviationOffice Safety Inspection Program
OSIP stands for Office Safety Inspection Program in FAA terminology.
- AbbreviationOfficial Airline Guide
OAG stands for Official Airline Guide in FAA terminology.
- AbbreviationOffshore Flight Data Processing System
OFDPS stands for Offshore Flight Data Processing System in FAA terminology.
- Radio communications and ATCOFFSHORE/CONTROL AIRSPACE AREA
That portion of airspace between the U.S. 12 NM limit and the oceanic CTA/FIR boundary within which air traffic control is exercised.
- Abbreviationomnidirectional approach lighting system
ODALS stands for omnidirectional approach lighting system in FAA terminology.
- AbbreviationOmnidirectional Approach Lighting Systems
ODALS stands for Omnidirectional Approach Lighting Systems in FAA terminology.
- Abbreviationon and off instruments
OAOI stands for on and off instruments in FAA terminology.
- Abbreviationon ground
OG stands for on ground in FAA terminology.
- Abbreviationon instruments
OI stands for on instruments in FAA terminology.
- AbbreviationOn line data interchange
OLDI stands for On line data interchange in FAA terminology.
- Abbreviationon time
OT stands for on time in FAA terminology.
- AbbreviationOperating Empty Weight
The aircraft's operating empty weight, excluding payload and usable fuel.
- Abbreviationoperation and regulation
OANDR stands for operation and regulation in FAA terminology.
- AbbreviationOperational Acceptable Level of Traffic
OALT stands for Operational Acceptable Level of Traffic in FAA terminology.
- Abbreviationoperational control
OPC stands for operational control in FAA terminology.