Haps

Haps is a village in the Dutch province of North Brabant. It is located in the municipality of Cuijk, about 5 km south of the town of Cuijk.

Haps was a separate municipality until 1994, when it became a part of Cuijk.

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Coordinates: 51°41′N 5°52′E / 51.683°N 5.867°E / 51.683; 5.867

Haps (disambiguation)

Haps may refer to:

See also

High altitude platform station

High altitude platform station (short: HAPS) is – according to Article 1.66A of the International Telecommunication Union´s (ITU) ITU Radio Regulations (RR) – defined as «A station on an object at an altitude of 20 to 50 km and at a specified, nominal, fixed point relative to the Earth.»

Each station shall be classified by the service in which it operates permanently or temporarily.

Limitation due to power

A HAP can be a manned or unmanned aeroplane, balloon, or an airship. All require electrical power to keep themselves and their payload functional. While current HAPS are powered by batteries or engines, mission time is limited by the need for recharging/refueling. Therefore, alternative means are being considered for the future. Solar energy is one of best options currently being used for under trial HAPS (Helios, Lindstrand HALE).

Laser propulsion (Lightcraft) might be useful as an additional ground based power source.

Altitude selection for HAPS

Whether an airship or an aeroplane, a major challenge is the ability of the HAP to maintain stationkeeping in the face of winds. An operating altitude of between 17 and 22 km is chosen because in most regions of the world this represents a layer of relatively mild wind and turbulence. Although the wind profile may vary considerably with latitude and with season, a form similar to that shown will usually obtain. This altitude (> 17 km) is also above commercial air-traffic heights, which would otherwise prove a potentially prohibitive constraint.