Glide Slope Lights
The advanced stabilised glide slope indicator asgsi is designed to provide a multi layer light beam which forms a wedge shaped funnel to guide the approaching pilot to the vessel.
Glide slope lights. When the pilot is approaching the lights at the proper angle meaning the pilot is on the glide slope the first set of lights appears white and the second set appears red. Each light is designed so that it appears as either white or red depending on the angle at which it is viewed. Above the designated glide slope a pilot will observe more white lights than red. When both sets appear white the aircraft is too high and.
At approaches below the ideal angle more red lights than white will be seen. Read the right glide slope from over ten miles out. A row of papi light housing assemblies lhas placed perpendicular to the approach path are seen by the pilot in combinations of red and white to indicate a. For the optimum approach angle the ratio of white to red lights will remain equal throughout for most aircraft the exceptions being the boeing.
The light beam is stabilised in both pitch and roll axes and is capable of being operated in both aided nvg and unaided modes. Visual approach slope indicators use a combination of white and red lights next to the runway to help pilots verify they are flying the correct approach angle to the runway. The on glide path indication may be a steady white light or alternating red and white light. This week s video takes a closer look at 2 types vasi and papi to show you how they work and what the various indications mean.
The slightly below glide path indication is a steady.