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features:conditions [2020/06/06 15:26]
Andreas Breitschopp
features:conditions [2022/12/21 10:19]
Andreas Breitschopp
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 Following values are the default for decision height and runway visibility: Following values are the default for decision height and runway visibility:
  
-         ^ Decision Height ^ Runway Visibility ^ +          ​^ Decision Height ^ Runway Visibility ^ 
-^ CAT I    | 200 ft (60 m)   | 1,800 ft (550 m)  | +^ CAT I     ​| 200 ft (60 m)   | 1,800 ft (550 m)  | 
-^ CAT II   | 100 ft (30 m)   | 1,000 ft (300 m)  | +^ CAT I LTS | 200 ft (60 m)   ​| 1,300 ft (400 m)  | 
-^ CAT IIIa | 50 ft (15 m)    | 600 ft (180 m)    | +^ CAT II    ​| 100 ft (30 m)   | 1,000 ft (300 m)  | 
-^ CAT IIIb | 30 ft (10 m)    | 150 ft (46 m)     | +^ CAT IIIa  | 50 ft (15 m)    | 600 ft (180 m)    | 
-^ CAT IIIc | 0 ft (0 m)      | 30 ft (10 m)      |+^ CAT IIIb  | 30 ft (10 m)    | 150 ft (46 m)     | 
 +^ CAT IIIc  | 0 ft (0 m)      | 30 ft (10 m)      |
  
 :i: Note: You can customize these presets in the [[features:​settings#​ils_visibility|Settings]] module to your needs. :i: Note: You can customize these presets in the [[features:​settings#​ils_visibility|Settings]] module to your needs.
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 {{https://​www.fs-flightcontrol.com/​img/​manual/​features/​conditions/​ils-visibility-custom.png?​nolink|}} {{https://​www.fs-flightcontrol.com/​img/​manual/​features/​conditions/​ils-visibility-custom.png?​nolink|}}
  
-Additionally you can also set directly a custom visibility ​here as well.+Additionally you can also set directly a custom visibility ​using a specified decision height and runway visibility ​as well
 + 
 +==== Reference Airport ==== 
 + 
 +{{https://​www.fs-flightcontrol.com/​img/​manual/​features/​conditions/​ils-visibility-reference-airport.png?​nolink|}} 
 + 
 +The ILS visibility needs to be defined in relation to a reference airport and runway which you can specify here. 
 + 
 +By default it uses the airport of the last approach in the [[features:​position|Position]] module, but you can also take over your flight plan departure or arrival airport or defining any custom one. 
 + 
 +:i: Note: If no airport is specified here it will use the ground elevation below the current aircraft position for calculations which might lead to wrong visibility results.
  
 ===== Custom Weather ===== ===== Custom Weather =====
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 You can define a local QNH here and also calculate the winds for the higher layers: This will apply a standard model of geostrophic winds turning with increasing altitude to the right in the Northern and left in the Southern Hemisphere. You can define a local QNH here and also calculate the winds for the higher layers: This will apply a standard model of geostrophic winds turning with increasing altitude to the right in the Northern and left in the Southern Hemisphere.
 +
 +Also applying the same ISA temperature deviation (based on the surface elevation) to the higher layers is possible.
  
 ==== Calculate Wind ==== ==== Calculate Wind ====