A landing assistance system for assisting an airborne vehicle during landing on a landing area, which landing assistance system provides the airborne vehicle with light signals, the landing assistance system comprising at least one geographically positionable light emitter (4, 6, 8) arranged to be positioned at near ground level on the landing area, wherein at least one first light emitter of the at least one geographically positionable light emitter (4, 6, 8) is arranged to emit light to a designated position in space, said light comprising at least three light beams (B1-B3), wherein a first beam being a central beam, which indicates a designated glideslope, and at least a second beam and third beam indicating that said airborne vehicle is positioned under or above the designated glideslope, respectively, wherein the at least one geographically positioned light emitter (4, 6, 8) is movable and the landing assistance system further comprising at least one control unit for calibration of the landing assistance system to the specific runway, characterized in that the control unit is arranged to determine a suitable geographical position and/or orientation of the geographically positioned light emitter via a geo-referenced three-dimensional textured model of the environment and then determine the designated glideslope and a geographical coordinate and possible orientation relating to the designated position in space, or determine a suitable geographical coordinate and possible orientation relating to the designated position in space and the designated glideslope based on the information in the georeferenced three-dimensional textured model of the environment, and based thereon determine the geographical position and possible orientation of the geographically positionable light emitter. the landing assistance system comprising at least one geographically positionable light emitter (4, 6, 8) arranged to be positioned at near ground level on the landing area, wherein at least one first light emitter of the at least one geographically positionable light emitter (4, 6, 8) is arranged to emit light to a designated position in space, said light comprising at least three light beams (B1-B3), wherein a first beam being a central beam, which indicates a designated glideslope, and at least a second beam and third beam indicating that said airborne vehicle is positioned under or above the designated glideslope, respectively, wherein the at least one geographically positioned light emitter (4, 6, 8) is movable and the landing assistance system further comprising at least one control unit for calibration of the landing assistance system to the specific runway, characterized in that the control unit is arranged to determine a suitable geographical position and/or orientation of the geographically positioned light emitter via a geo-referenced three-dimensional textured model of the environment and then determine the designated glideslope and a geographical coordinate and possible orientation relating to the designated position in space, or determine a suitable geographical coordinate and possible orientation relating to the designated position in space and the designated glideslope based on the information in the georeferenced three-dimensional textured model of the environment, and based thereon determine the geographical position and possible orientation of the geographically positionable light emitter. determine a suitable geographical position and/or orientation of the geographically positioned light emitter via a geo-referenced three-dimensional textured model of the environment and then determine the designated glideslope and a geographical coordinate and possible orientation relating to the designated position in space, or determine a suitable geographical coordinate and possible orientation relating to the designated position in space and the designated glideslope based on the information in the georeferenced three-dimensional textured model of the environment, and based thereon determine the geographical position and possible orientation of the geographically positionable light emitter.