SCAT-I ''(Special CATegory I)'' is an instrument landing system for aircraft, based on

Differential GPS Differential Global Positioning Systems (DGPSs) supplement and enhance the positional data available from global navigation satellite systems (GNSSs). A DGPS for GPS can increase accuracy by about a thousandfold, from approximately to . DGPSs c ...

. It is developed under project management by

Avinor Avinor AS is a state-owned limited company that operates most of the civil airports in Norway. The Norwegian state, via the Norwegian Ministry of Transport and Communications, controls 100 percent of the share capital. Avinor was created on ...

, the Norwegian airport administration. It is installed on several short runway airports for domestic operation in Norway. It requires special equipment to be installed in the aircraft, and allows precision landings in bad visibility, something that is important on short runways where bad weather including snow storms are common. The system was operational for the first time in 2007, first installed at

Brønnøysund Brønnøysund () is a town and the administrative centre of Brønnøy Municipality in Nordland county, Norway. It is also a former municipality within Nordland county. The village of Brønnøysund originally was declared a ladested in 1923 wh ...

, then at several other airports. As of 2013 it is installed at 21 regional airports in Norway.Prosjekter – Special CATegory I (SCAT-I)
(avinor.no)

References

External links

AVINOR SCAT-I introduction movie
Aircraft landing systems 2007 introductions