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In aviation, instrument flight rules (IFR) is one of two sets of regulations governing all aspects of civil aviation aircraft operations; the other is visual flight rules (VFR).
In aviation, visual flight rules (VFR) are a set of regulations under which a pilot operates an aircraft in weather conditions generally clear enough to allow the pilot to see where the aircraft is going. Specifically, the weather must be better than basic VFR weather minima, i.e., in visual meteorological conditions (VMC), as specified in the rules of the relevant aviation authority. The pilot must be able to operate the aircraft with visual reference to the ground, and by visually avoiding obstructions and other aircraft.
Airspace is the portion of the atmosphere controlled by a country above its territory, including its territorial waters or, more generally, any specific three-dimensional portion of the atmosphere. It is not the same as outer space which is the expanse or space outside the Earth and aerospace which is the general term for Earth's atmosphere and the outer space within the planet's vicinity.
In aviation, visual meteorological conditions (VMC) is an aviation flight category in which visual flight rules (VFR) flight is permitted—that is, conditions in which pilots have sufficient visibility to fly the aircraft maintaining visual separation from terrain and other aircraft. They are the opposite of instrument meteorological conditions (IMC). The boundary criteria between IMC and VMC are known as the VMC minima and are defined by: visibility, cloud ceilings, and cloud clearances.
A private pilot licence (PPL) or private pilot certificate is a type of pilot licence that allows the holder to act as pilot in command of an aircraft privately. The basic licence requirements are determined by the International Civil Aviation Organization (ICAO), but implementation varies from country to country. According to ICAO, an applicant must be at least 17 years old, demonstrate appropriate knowledge and skill, and hold at least a Class 3 medical certificate. Different PPLs are available for different categories of aircraft, such as aeroplane, helicopter, airship, etc., and are not interchangeable, although experience from a PPL in one category may be credited towards the issue of another.
The world's navigable airspace is divided into three-dimensional segments, each of which is assigned to a specific class. Most nations adhere to the classification specified by the International Civil Aviation Organization (ICAO) and described below, though they might use only some of the classes defined below, and significantly alter the exact rules and requirements. Similarly, individual nations may also designate special use airspace (SUA) with further rules for reasons of national security or safety.
In aviation, instrument meteorological conditions (IMC) are weather conditions that require pilots to fly primarily by reference to flight instruments, and therefore under instrument flight rules (IFR), as opposed to flying by outside visual references under visual flight rules (VFR). Typically, this means flying in cloud or poor weather, where little or nothing can be seen or recognised when looking out of the window. Simulated IMC can be achieved for training purposes by wearing view-limiting devices, which restrict outside vision and force the trainee to rely on instrument indications only.
Pilot licensing or certification refers to permits for operating aircraft. Flight crew licences are issued by the civil aviation authority of each country, which must establish that the holder has met minimum knowledge and experience before issuing licences. The licence, along with the required class or type rating, allows a pilot to fly aircraft registered in the licence issuing state.
Pilot certification in the United States is typically required for an individual to act as a pilot-in-command of an aircraft. It is regulated by the Federal Aviation Administration (FAA), a branch of the U.S. Department of Transportation (USDOT). A pilot may be certified under 14 Code of Federal Regulations (CFR) Part 61 or 14 CFR Part 141. Pilots may also be certified under 14 CFR Part 107 for commercial drone operations.
Pilot licensing in Canada is administered by Transport Canada under the Aeronautics Act and the Canadian Aviation Regulations (CARs).
Pilot licensing in the United Kingdom is regulated by the Civil Aviation Authority (CAA).
An instrument rating is an authorization required for a pilot to fly under instrument flight rules (IFR). In the United States, the rating is issued by the Federal Aviation Administration.
Special visual flight rules are a set of aviation regulations under which a pilot may operate an aircraft. It is a special case of operating under visual flight rules (VFR).
A flight instructor is a person who teaches others to operate aircraft. Specific privileges granted to holders of a flight instructor qualification vary from country to country, but very generally, a flight instructor serves to enhance or evaluate the knowledge and skill level of an aviator in pursuit of a higher pilot's license, certificate or rating.
VFR over-the-top (OTT) refers to flying over top of clouds in visual flight, rather than with reference to instruments. This is usually done for brief amount of time to avoid weather or turbulence.
The United States airspace system's classification scheme is intended to maximize pilot flexibility within acceptable levels of risk appropriate to the type of operation and traffic density within that class of airspace – in particular to provide separation and active control in areas of dense or high-speed flight operations.
A type rating is an authorization entered on or associated with a pilot license and forming part thereof, stating the pilot's privileges or limitations pertaining to certain aircraft type. Such qualification requires additional training beyond the scope of the initial license and aircraft class training.
In Australia, pilot licences are issued by the Civil Aviation Safety Authority. Licences are issued for different categories of aircraft, including aeroplanes and helicopters.
In aviation training, a view-limiting device simulates instrument meteorological conditions (IMC) by restricting a pilot's field of view only to the flight instruments. They are worn by pilots who are working toward an instrument rating, which allows a pilot to fly under instrument flight rules in conditions that do not permit visual flight. They are also used by instrument-rated pilots while practicing instrument flight to maintain competency.
Aviation in the European Union and the European Free Trade Association is regulated by the European Union Aviation Safety Agency (EASA). EASA specifies common standards for the licensing of aircraft pilots. EASA does not issue licences, rather licences are issued by member states. However, because the same standards are used, EASA licences are recognised by all member states.
References
- ↑ Benenson, Tom (2006-11-10). "Climbing the Ratings Ladder". Flying Magazine. 133 (11): 73. Retrieved 2010-11-27.
- ↑ Title 14, Part 61. "CERTIFICATION: PILOTS, FLIGHT INSTRUCTORS, AND GROUND INSTRUCTORS". ELECTRONIC CODE OF FEDERAL REGULATIONS. US Government Printing Office. Retrieved 27 December 2012.
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