ILS Flashcards
What does the Localizer provide?
Lateral course guidance
Localizer is part of the Instrument Landing System (ILS) that helps pilots align with the runway during approach.
What does the Glide Slope provide?
Vertical course guidance
Glide Slope is used in conjunction with the Localizer to ensure proper descent angle during landing.
What is a notable error associated with the Glide Slope?
False glide slope above normal glide slope
This can lead to incorrect altitude readings and potentially hazardous situations during approach.
What is the function of the Approach Light System (ALS)?
Provides basic visible means to transition between instrument-guided flight into a visual approach
ALS enhances visual cues for pilots as they approach the runway.
What is the range of the ALS for precision instrument runways?
2,400-3,000 feet
This range allows pilots to visually transition to landing from instrument flight.
What is the range of the ALS for non-precision instrument runways?
1,400-1,500 feet
The shorter range reflects the less precise nature of non-precision approaches.
What visual aid may be included in the ALS configuration?
Sequenced Flashing Lights
These lights appear to the pilot as a ball of light traveling towards the runway at twice a second, commonly referred to as ‘The Rabbit’.
How can the visible parts of the ALS configuration assist pilots?
Help estimate flight visibility
This estimation is crucial for determining if visual conditions are suitable for landing.