Altiport Henri Giraud Alpe d Huez LFHU big

An altiport is an

aerodrome An aerodrome, airfield, or airstrip is a location from which aircraft flight operations take place, regardless of whether they involve air cargo, passengers, or neither, and regardless of whether it is for public or private use. Aerodromes inc ...

for small

airplane An airplane (American English), or aeroplane (Commonwealth English), informally plane, is a fixed-wing aircraft that is propelled forward by thrust from a jet engine, Propeller (aircraft), propeller, or rocket engine. Airplanes come in a vari ...

s and

helicopter A helicopter is a type of rotorcraft in which Lift (force), lift and thrust are supplied by horizontally spinning Helicopter rotor, rotors. This allows the helicopter to VTOL, take off and land vertically, to hover (helicopter), hover, and ...

s, situated on or within mountainous terrain. Altiports are generally characterized by having a runway with an atypical slope to fit in the local topography. Ultimately, this slope helps aircraft decelerating when

landing Landing is the last part of a flight, where a flying animal, aircraft, or spacecraft returns to the ground. When the flying object returns to water, the process is called alighting, although it is commonly called "landing", "touchdown" or " spl ...

and assists

acceleration In mechanics, acceleration is the Rate (mathematics), rate of change of the velocity of an object with respect to time. Acceleration is one of several components of kinematics, the study of motion. Accelerations are Euclidean vector, vector ...

during

takeoff Takeoff is the phase of flight in which an aerospace vehicle leaves the ground and becomes airborne. For aircraft traveling vertically, this is known as liftoff. For aircraft that take off horizontally, this usually involves starting with a tr ...

. High altitude results in less

lift Lift or LIFT may refer to: Physical devices * Elevator, or lift, a device used for raising and lowering people or goods ** Paternoster lift, a type of lift using a continuous chain of cars which do not stop ** Patient lift, or Hoyer lift, mobile ...

available to aircraft wings, which requires aircraft to achieve higher speed at takeoff and landing. Such airfields with unusual physical characteristics are frequent in regions such as the

French Alps The French Alps are the portions of the Alps mountain range that stand within France, located in the Auvergne-Rhône-Alpes and Provence-Alpes-Côte d'Azur regions. While some of the ranges of the French Alps are entirely in France, others, such a ...

, Himalayan regions, as well as

Pacific islands The Pacific islands are a group of islands in the Pacific Ocean. They are further categorized into three major island groups: Melanesia, Micronesia, and Polynesia. Depending on the context, the term ''Pacific Islands'' may refer to one of several ...

Definitions

According to

International Civil Aviation Organization The International Civil Aviation Organization (ICAO ) is a specialized agency of the United Nations that coordinates the principles and techniques of international air navigation, and fosters the planning and development of international sch ...

(ICAO) Document 9150:

STOLport A STOLport or STOLPORT was an airport designed with STOL (Short Take-Off and Landing) operations in mind, usually for an aircraft class of a certain weight and size. The term "STOLport" did not appear to be in common usage as of 2008, although wa ...

Manual: "An altiport may be defined as a small airport in a mountainous area with a steep gradient runway, used for landing up the slope and for take-off down the slope, thereby making use of only one approach/departure area." According to the former French Technical Instruction on Civil Aerodromes (ITAC) of 2000, an altiport is specifically designed for serving mountainous regions. It features a steep runway that has a single approach / departure path. The runway ends with a section that has a lower slope, as well as an apron with aircraft stands. An altisurface is defined as a graded area that is not an aerodrome but that can be used as a steep runway with a single approach / departure path.DGAC (2000). "Instruction technique sur les aérodromes civils" (ITAC), Chapitre 13 : Aérodromes à caractéristiques spéciales, 13-1 Altiports, page 13-3

Definitions

List of altiports

Notes

References