Question id 55 - Air Law - Quiz SPL - Sailplane Pilot License

Fixed beacon installed at an airport or aerodrome to indicate its location to aircraft pilots from the air
Rotating beacon installed at the beginning of the final approach to indicate its location to aircraft pilots from the air.
Rotating beacon installed at an airport or aerodrome to indicate its location to aircraft pilots from the air.
Rotating beacon installed at an airport or aerodrome to indicate its location to aircraft pilots from the ground.