Knowledge base

Anchor light

An anchor light is a white navigation light that indicates a stationary vessel at anchor. This light is mandatory under international maritime...

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Obstacle lighting

Obstacle lighting is a special signaling system used to make tall structures and obstacles visible to aircraft, helicopters, and drones . This...

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Threshold Lights

Threshold Lights are green lights that mark the runway's starting edge , where aircraft are permitted to land. They are a crucial...

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Runway Edge Lights

Runway Edge Lights are lighting elements along the edges of a runway that assist pilots during nighttime or low-visibility landings and taxiing...

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Runway End Identifier Lights (REIL)

Runway End Identifier Lights (REIL) are two bright, flashing white lights located on either side of the runway's threshold . They help...

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MALSR system (Medium Intensity Approach Lighting System with Runway Alignment Indicator Lights)

The MALSR system (Medium Intensity Approach Lighting System with Runway Alignment Indicator Lights) is a visual landing aid system that helps pilots...

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Visual Approach Slope Indicator (VASI)

The Visual Approach Slope Indicator (VASI) is a visual aid for pilots that helps maintain the correct descent angle during landing. The...

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Precision Approach Path Indicator (PAPI)

The Precision Approach Path Indicator (PAPI) is a visual aid for pilots during landings. It consists of four lights next to the...

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Sequenced Flashing Lights (SFL)

Sequenced Flashing Lights (SFLs) are a series of bright flashing lights that are part of an Approach Lighting System (ALS) and help...

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Approach Lighting System (ALS)

An Approach Lighting System (ALS) is a landing aid consisting of a series of navigation and signal lights that help pilots approach...

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Approach light

An approach light is a type of navigation or signal light used to guide a vehicle, aircraft, or ship as it approaches...

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Traffic light

A traffic light is a signal used to regulate traffic flow and ensure road safety . Traffic lights provide visual signals using...

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