diff --git a/CHANGELOG.md b/CHANGELOG.md
index af7e537..ba7558a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ Change log
 
 * 🎁 Add airport names to labels, ignoring extra information while calling APIs
 * 🎁 Make GUI sliders snap to next readable value
+* 💊 Set maximum visibility to 15,000 meters, thus decreasing effects of low visibility
 
 1.3.0
 -----
diff --git a/docs/aerofly-config.md b/docs/aerofly-config.md
index 3af4346..75bbe13 100644
--- a/docs/aerofly-config.md
+++ b/docs/aerofly-config.md
@@ -30,7 +30,14 @@ This tool modifies the following settings in Aerofly's `main.mcf`:
 Visibility
 ----------
 
-Visibility tests set maximum visibility in Aerofly FS 2 to 20,000 meters.
+Visibility tests with METAR data, webcams and comparison with Aerofly FS2 visbility show this pattern:
+
+| Visibility Real Life | Visibility Aerofly FS 2 | 
+| -------------------- | ----------------------- |
+| 6,000 meters         | ~40%                    |
+| 7,500 meters         | ~50%                    |
+
+This in turn sets 100% visibility in Aerolfy FS 2 to a real life visibility of 15,000 meters.
 
 Wind
 ----
diff --git a/src/WettergeraetLib/AeroflyWeather.h b/src/WettergeraetLib/AeroflyWeather.h
index 450e965..6defbcc 100644
--- a/src/WettergeraetLib/AeroflyWeather.h
+++ b/src/WettergeraetLib/AeroflyWeather.h
@@ -18,7 +18,7 @@ class AeroflyWeather
 	unsigned short maxCloudsDensity = 8; // as given in METAR cloud density
 	unsigned long maxCloudsHeight = 40000; // ft = 100% Aerofly
 	double maxWindSpeed = 16;   // kt = 100% Aerofly
-	unsigned long maxVisibility = 20000; // m = 100% Aerofly
+	unsigned long maxVisibility = 15000; // m = 100% Aerofly
 	double maxTurbulence = 20;  // kt as delta to current wind
 	double minTemperature = 5;  // °C => 0% Aerofly
 	double maxTemperature = 30; // °C => 100% Aerofly