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Terms for subject Aviation (2593 entries)

operating irregularity	A situation that occurs when ATS are being provided and when a preliminary investigation indicates that a hazardous situation or loss of separation may have occurred
operating position	A position within a sector from which ATS are provided. There may be one or more operating positions within a sector.
operational control	The exercise of authority over the initiation, continuation, diversion or termination of a flight in the interest of the safety of the aircraft and the regularity and efficiency of the flight.
operational flight plan	The operator's plan for the safe conduct of the flight based on considerations of aeroplane performance, other operating limitations and relevant expected conditions on the route to be followed and at the aerodromes concerned.
operational planning	The planning of flight operations by an operator.
operations manual	A manual containing procedures, instructions and guidance for use by operational personnel in the execution of their duties.
operations support specialist	An employee assigned to perform non-control functions in an ATC unit
operator	A person, organization or enterprise engaged in or offering to engage in an aircraft operation.
operator's maintenance control manual	A document which describes the operator's procedures necessary to ensure that all scheduled and unscheduled maintenance is performed on the operator's aircraft on time and in a controlled and satisfactory manner.
operators' documents	Air waybills/consignment notes, passenger tickets and boarding passes, bank and agent settlement plan documents, excess baggage tickets, miscellaneous charges orders (M.C.O.) damage and irregularity reports, baggage and cargo labels, timetables, and weight and balance documents, for use by aircraft operators.
ops check	Periodic check of aircraft systems performed by the aircrew (including fuel) for safety of flight
optimum turn	A turn during which energy remains constant and turn rate is maximized
originating unit	The unit from which the activated flight plan (FP) is forwarded to the destination unit
orthometric height	Height of a point related to the geoid, generally presented as an MSL elevation.
Osprey	V-22 Osprey	Michae­lBurov
out-of-plane maneuver	A maneuver which entails leaving the horizontal plane
outer marker	An LF or VHF facility installed at the site of the outer marker of an instrument landing system
overhead approach	A series of predetermined manoeuvres prescribed for the VFR arrival of military aircraft (often in formation) for their entry into the VFR aerodrome traffic circuit and for landing
overhead break	A series of predetermined manoeuvres prescribed for the VFR arrival of military aircraft (often in formation) for their entry into the VFR aerodrome traffic circuit and for landing
overlay approach	Selected non-directional beacon (NDB) VHF omnidirectional range (VOR) or VHF omnidirectional range/distance measuring equipment (VOR/DME) non-precision approach that can be flown by global positioning system (GPS) equipped aircraft