4,360 articles
Oceanic control area
An oceanic control area (OCA) is controlled airspace over the open ocean where controllers separate aircraft by managing planned flight trajectories, since radar coverage is unreliable.
Offensive counter-air
Offensive counter-air (OCA) is the category of air operations that destroys or neutralizes an enemy's air power and air defenses, preferably on the ground, to gain control of the air.
Official Airline Guide
The Official Airline Guide (OAG) is a British aviation data company licensing global airline flight schedules, status, and airfare data, tracing its heritage to a printed timetable.
Offutt Air Force Base
Offutt Air Force Base, formerly Fort Crook, is a US Air Force installation south of Omaha, Nebraska, and the headquarters of United States Strategic Command since 1992.
OGMA
OGMA – Indústria Aeronáutica de Portugal is a Portuguese aircraft maintenance, repair, and overhaul and aerostructures company in Alverca do Ribatejo, founded in 1918 and majority-owned by Embraer.
Olenya (Оленья) (air base)
Olenya, also Olenegorsk Air Base, is a Russian military air base on the Kola Peninsula near Murmansk that hosts Tu-22M3 bombers used for cruise missile strikes on Ukraine.
Oliver C. Boileau
Oliver C. Boileau was an aerospace engineer and executive who led the B-2 stealth bomber program and retired in 1995 as Grumman's president and CEO.
Olympic Air (Ολυμπιακή)
Olympic Air (Ολυμπιακή) is a Greek regional airline created in 2009 from the privatized Olympic Airlines, owned by AEGEAN Airlines since 2013 and known for operating subsidized island routes.
Oman Air (الطيران العماني)
Oman Air (الطيران العماني) is the state-owned flag carrier of Oman, headquartered in Muscat. Founded in 1993, it flies to about 45 destinations from Muscat International Airport and joined the oneworld alliance in 2025.
Omni Air International
Omni Air International, founded in 1993 as Omni Air Express, is an American charter airline based in Tulsa, Oklahoma, providing worldwide passenger charters and ACMI wet leasing.
One Air
One Air is a British all-cargo airline based at Hampton Wick, London, operating Boeing 747 and 777 freighters on charter and scheduled services across Asia, Europe, and the Middle East.
Oneworld
Oneworld, also known as the Oneworld alliance, is one of the three global airline alliances. Founded in 1999, it links 16 member airlines sharing lounges, status tiers, and through-ticketing.
Ontario International Airport
Ontario International Airport (ONT) is a public international airport in Ontario, California, about 35 miles east of downtown Los Angeles, owned since 2016 by the Ontario International Airport Authority.
Ontic Technologies
Ontic Technologies, formally Ontic Engineering & Manufacturing, is a British aerospace company that takes over manufacture of mature aircraft parts other makers no longer produce.
Open Fan
Open Fan is an aircraft engine architecture without a nacelle, enabling a bypass ratio over 60 and targeting roughly 20% lower fuel burn than today's engines.
Open skies agreement
An open skies agreement is a bilateral or multilateral air services agreement removing most government control over international air transport, letting airlines decide routes, capacity, and fares.
Operation Aphrodite
Operation Aphrodite was a secret 1944 US Army Air Forces program converting war-weary B-17 bombers into radio-controlled flying bombs; no drone ever destroyed its target.
Operation Black Buck
Operation Black Buck, known as the Black Buck raids, was a series of seven long-range RAF Avro Vulcan bombing raids on Port Stanley airport in the 1982 Falklands War.
Operation Bodenplatte
Operation Bodenplatte, also known as Unternehmen Bodenplatte, was a failed Luftwaffe attack on Allied airfields on 1 January 1945 during the Battle of the Bulge.
Operation Catechism
Operation Catechism was a World War II British air raid conducted on November 12, 1944. Royal Air Force Lancasters sank the German battleship Tirpitz at her mooring off Håkøya island.
Operation Chastise
Operation Chastise, known as the Dambusters Raid, was a Royal Air Force bombing attack on the night of 16/17 May 1943 in which No. 617 Squadron breached the Möhne and Eder dams in Germany.
Operation Chengiz Khan
Operation Chengiz Khan, also known as Operation Genghis Khan, was a pre-emptive night strike by the Pakistan Air Force on Indian airbases and radars on 3 December 1971.
Operation Chrome Dome
Operation Chrome Dome, also known as CHROME DOME, was a Cold War program in which US nuclear-armed B-52 bombers flew continuous airborne alert patrols from 1961 to 1968.
Operation Deliberate Force
Operation Deliberate Force, or Deliberate Force, was a NATO air campaign against Bosnian Serb targets in August and September 1995, launched after the Sarajevo marketplace mortar strike.
Operation Frantic
Operation Frantic was a series of seven American shuttle-bombing raids against Axis targets that landed at Soviet airfields in Ukraine between June and September 1944.
Operation Hailstone
Operation Hailstone, or the Battle of Truk, was a two-day US Navy carrier attack on Truk Lagoon in February 1944 that wrecked Japan's major Central Pacific base.
Operation Hannibal
Operation Hannibal (Unternehmen Hannibal) was the German navy's 1945 evacuation of East Prussia by sea, called the largest naval evacuation in history, costing over 20,000 lives.
Operation Homecoming
Operation Homecoming was the United States military program that returned 591 American prisoners of war from Vietnam, Laos, and China in 1973, after the Paris Peace Accords, through Clark Air Base in the Philippines.
Operation IceBridge
Operation IceBridge was a NASA airborne science campaign, flown from 2009 to 2021, that measured changes in the thickness of Arctic and Antarctic ice between the ICESat satellites.
Operation Jericho
Operation Jericho, wartime designation Ramrod 564, was a low-level RAF bombing raid on 18 February 1944 that breached the walls of Amiens prison in occupied France.