

Aviation Terms
| Title | Description |
| O | Oscar |
| Occupied Flight Time | Flight time used with paying passengers on board the jet. |
| Oceanic Airspace | The airspace over the oceans of the world. It is considered international airspace, where oceanic separation and procedure as per the ICAO (International Civil Aviation Organization) are applied. Air traffic control services in oceanic airspace are provided by countries given such responsibility by the ICAO based upon geographical proximity and the availability of required resources. |
| OCIP | Optimized Continuous Inspection Program offered by Dassault. |
| OEM | Original Equipment Manufacturer. An OEM manufactures products or components that are purchased by a company and retailed under the purchasing company's brand name. OEM refers to the company that originally manufactured the product. |
| On Demand Charter | Rental of a jet aircraft or helicopter one trip at a time. These trips can be one-ways, round trips, or multi-leg flights. Find aircraft available for On-Demand-Charter Flights on the Empty Legs or Transient Aircraft pages of JetRequest.com. |
| One-Way | A jet charter that is only needed for one leg. Typically, securing an empty leg is the best was to get a discounted price on a one-way flight. Find One-Ways on the Empty Legs page of JetRequest.com. |
| Operating Lease | Generally a lease term that is short compared to the economic life of the aircraft being leased. An operating lease is commonly used to acquire aircraft for a term of 2-7 years. With an operating lease the aircraft doesn't appear on the Lessee's balance sheet. An Operating Lease is a type of Dry Lease. |
| Operator | Also Charter Operator. A company or individual that holds aircraft charter certificates and provides charter services to retail and wholesale customers. Request a private jet directly from an Operator on the Empty Legs and Transient Aircraft pages of JetRequest.com. |
| Overflight | An aircraft flight over a particular area, especially over foreign territory. |
| Overflight Permit | Permission needed to fly over foreign territories. Different countries require different amounts of time in order to grant an overflight permit. |
| Overhaul | The maintenance procedure in which an airplane, or its components, is disassembled, inspected, serviced, if necessary repaired, and restored to a condition of normal operation. |
| Overnight | Term used for aircraft staying over night at an airport that is not its home base. |
| Overnight Fee | Fee assessed by some FBOs for keeping the aircraft there overnight. |
| Overshoot | To fly an aircraft well beyond a runway threshold or planned spot while trying to land. Opposite of undershoot. |
| Owner Approval | When the jet owner must first approve the use of the aircraft for the requested charter mission. An operator or broker will give the client an estimated cost "Pending Owner Approval". |







