Solución parcial desde el ORG:
http://forums.x-plane.org/index.php?s=&showtopic=26771&view=findpost&p=298879"
Found a solution. I increased the light power from 1-5 and increased the widthg form 30 to 40 degs. The result makes it look like you have landing lights on the wings and a taxi light on the nose gear"
Otra cosa es modificar
lights.txt.