In the case of aircraft, operation means the use, reason for use or authorization to operate aircraft for the purposes (except as provided for in § 91.13 of this Chapter) of air traffic control, including the control of aircraft, with or without the right to statutory audit (as owner, lessee or otherwise). Below are the definitions of the terms used in this section: The Canadian Aeronautical Information Manual states “. for the most part, all of Canada can be an aerodrome,” but there are also “registered aerodromes” and “certified airports.” To become a registered aerodrome, the operator must comply with certain standards and keep the Minister of Transport informed of any changes. To be certified as an airport, the aerodrome, which usually supports commercial operations, must meet safety standards.  Nav Canada, the private company responsible for air navigation services in Canada, publishes the Canada-Air Supplement, a list of all registered Canadian land airports, and the Canada Water Aerodrome Supplement (CWAS).  For an aerodrome, “operation” includes the management, maintenance and improvement of the aerodrome. `ANZA mutual recognition agreement` means the agreement or arrangement or arrangement, as amended, listed in the Regulations for the purposes of this definition. The term airport may imply a certain stature (after meeting certain certification criteria or regulatory requirements) that may not have reached all airports. This means that all airports are aerodromes, but not all airports are airports. The use of the term “aerodrome” is even more common in Ireland and Commonwealth countries and, conversely, almost unknown in American English, where the term “airport” is used almost exclusively. Casement Airfield is the main military airport used by the Irish Air Corps. The term “aerodrome” is used for airports and aerodromes of minor importance in Ireland, such as Abbeyshrule; Bantry; Birr; Inisheer; Inishmaan; Inishmore; Newcastle (County Wicklow) and trim. In colloquial use in some environments, the terms airport and aerodrome are often exchanged.
In general, however, the term airport may imply or confer on the aviation facility a certain meaning that other aerodromes may not have achieved. In some jurisdictions, airport is a legal term of art reserved exclusively for airports that have been certified or authorized as airports by the competent civil aviation authority after meeting certain certification criteria or regulatory requirements.  (b) visual and non-visual aids to approach and landing at aerodromes; In the early days of aviation, when there were no paved runways and all landing sites were grass, a typical airfield allowed take-offs and landings in only a few directions, similar to today`s airports, while an airfield was characterized by its ability to perform landings and takeoffs in any direction due to its much larger size. The ability to always take off and land directly in the wind, regardless of wind direction, was an important advantage in the early days of aviation, when an aircraft`s performance could be poor or even dangerous during a crosswind takeoff or landing. The development of differential braking in aircraft, the improvement of aircraft performance, the use of paved runways and the fact that a circular aerodrome took up much more space than the “L” – or triangular aerodrome – eventually made the first aerodromes obsolete. A runway is a small airfield that consists only of a runway with perhaps refuelling equipment. They are usually located in remote locations. Many runways (now largely abandoned) were built during World War II on the hundreds of islands in the Pacific Ocean. Some runways became full-fledged air bases as the strategic or economic importance of an area increased over time.
3. An aircraft owned or operated by the National Guard of a state, district of Columbia or territory or property of the United States that meets the criteria set out in subsection (2) of this definition is considered to be a public aircraft only to the extent that it is operated under the direct control of the Department of Defense. An aerodrome (Commonwealth English) or aerodrome (American English) is a place from which aircraft air operations take place, whether air cargo, passengers or neither, and whether for public or private use. Aerodromes include small aerodromes for general aviation, large commercial airports and military aerodromes. The word aerodrome is derived from the ancient Greek ἀήρ (aḗr), air, and δρόμος (drómos), road or course, which literally means aircourse. An ancient linguistic parallel is the Hippodrome (a stadium for horse and chariot racing), derived from ἵππος (híppos), horse, and δρόμος (drómos), course. A modern linguistic parallel is the velodrome, an arena for velocipede. Αεροδρόμιο is the word for airport in modern Greek, which is transcribed as aerodromio. However, “manoeuvring area” means that part of an aerodrome intended to be used for the take-off and landing of aircraft and for the movement of aircraft in connection with take-off and landing does not include a part of an aerodrome to be used: (3) All airport buildings and facilities located in the areas referred to in this definition.
In Canada and Australia, aerodrome is a legal term for any land or sea area used for the operation of aircraft, regardless of the facility. A seaplane aerodrome or seaplane base is an area of open water that is regularly used by seaplanes, seaplanes and amphibious aircraft for landing and take-off. There may be an onshore terminal and/or a location where the aircraft can disembark and dock as a vessel for loading and unloading (e.g., Yellowknife Water Aerodrome). Some are located with a ground airport and are self-certified airports. These include Vancouver Water International Airport and Vancouver International Airport. Others, such as the Vancouver Harbour Flight Centre, have their own control tower, the Vancouver Harbour Control Tower. `aerodrome` means a land or sea area (including buildings, facilities and equipment) authorised for use as an aerodrome under the Rules, which is an area intended, in whole or in part, for the arrival, departure or movement of aircraft. (ii) For the sole purpose of determining the status of public aircraft, a governmental function is defined as an activity carried out by a Government, such as national defence, intelligence missions, firefighting, search and rescue, law enforcement (including the transport of prisoners, prisoners and illegal aliens), aeronautical research or the management of biological or geological resources.
(2) Unless a shorter term is approved by the Administrator, a lease of at least 20 years granted to the Sponsor by another public body or the United States having the title as defined in paragraph 1 of this definition on terms that the Administrator considers satisfactory; A seaplane is an area of open water that is regularly used by seaplanes, seaplanes or amphibious aircraft for landing and take-off. An air base is an aerodrome with significant facilities to support aircraft and crew. The term is usually reserved for military bases, but also applies to civilian seaplane bases. International Civil Aviation Organization (ICAO) documents use the term aerodrome, for example in the Annex to the ICAO Convention on Aerodromes, their Physical Properties and Operation. However, the terms aerodrome or airport largely replaced the use of airfield after World War II in colloquial language.  [Original research?] (c) the design, construction, construction, operation and use of aerodromes; Flight stop (IFSD) only means for ETOPS when an engine stops working (when the aircraft is in the air) and is stopped, whether it is a self-induced flight crew, triggered or influenced from the outside.