Are active runways linked to ME wind direction / strength?

[buceador]

When you contact ATC for landing (eg Ford 1.1 inbound) is the runway allocation static, i.e always the same or it it linked to ME settings for weather?

If this is NOT modeled where lies the information for which runway will be assigned for incoming / outgoing aircraft?

Thanks in advance. 

(Apologies @BIGNEWY for my unthinking transgression!)

[BIGNEWY]

as far as I am aware in most cases active runway is determined by wind direction 

[buceador]

Just now, BIGNEWY said:

as far as I am aware in most cases active runway is determined by wind direction 

Wind direction as a DCS / ME preset or as set by the mission creator?

[razo+r]

12 minutes ago, buceador said:

Wind direction as a DCS / ME preset or as set by the mission creator?

Wind direction that is currently set in the mission. 

 

[ex81]

ATC landing instrucions are based on the wind direction. If you choose your own weather conditions, ATC will give you different directions for the runway.

Kobuleti is mostly runway70. But if you give your own winddirection, they will change it to 250. Bad english, but I hope it helps.

 

Windcondition-Test.miz

Edited July 12, 2023 by ex81

[buceador]

3 hours ago, ex81 said:

ATC landing instrucions are based on the wind direction. If you choose your own weather conditions, ATC will give you different directions for the runway.

Ok, thank you for your input.  I did a quick test at Ras al Khaimah with a 10 knot wind speed running, in relation to the runway, N/S/E/W - 345 / 165 / 257 and 27 degrees.  Each time I was instructed to use the same runway - runway 17 (actually 17 doesn't exist it's 16).

The received knowledge here is that runway designation changes according to wind direction - What am I missing?

 

Edit:  I just lined up with a variety of different runways at North LV Nevada with different wind directions, each time ATC instructed me to land runway 25...

Ras Al Khaimah 27.trk Ras Al Khaimah 257.trk Ras Al Khaimah 345.trk Ras Al Khaimah 165.trk

Edited July 12, 2023 by buceador
More testing

[western_JPN]

Some airports / air force bases have a limitation Take-off <--> Landing direction is static even with down wind because of near mountains or near cities IRL.

About DCS terrain modules, those airports and AFBs (in example, not all) maybe in that condition.
Caucasus: Batumi, Nalchik
NTTR: Nellis
PG: Khasab

I don't remember Ras Al Khaimah has the same limitation or not ... 

[Hog_No32]

15 minutes ago, western_JPN said:

Some airports / air force bases have a limitation Take-off <--> Landing direction is static even with down wind because of near mountains or near cities IRL.

About DCS terrain modules, those airports and AFBs (in example, not all) maybe in that condition.
Caucasus: Batumi, Nalchik
NTTR: Nellis
PG: Khasab

I don't remember Ras Al Khaimah has the same limitation or not ... 

That pretty much sums it up correctly, I think.

I know from my own clumsy mission building experience that in the Caucasus map, most airport do perfectly change the active runway (direction) to the wind as set in the ME as to always prefer a headwind component. But as western_JPN correctly stated, for some airports terrain does only allow for landing in one direction like Batumi. Same is true for takeoff as well. On the PG map, Khasab is indeed a more striking example with high terrain to the south of the N/S-oriented runway. Yes, you can do a cirling approach but that is rather challenging in the narrow valley.

This all matches real-life procedures at the mentiones airports btw, so it‘s actually a good score for DCS in that regard ;-]

[virgo47]

On Caucasus, most of the aerodromes have a preferred direction when there is no wind (or matching upwind). To "reverse" the ATC instruction from their defaults just make the wind go against the default and set it to 5 m/s or more. There are a few exceptions, some mentioned above:

• Batumi is always 31 for TO and 13 for landing.
• Gelendzhik 19/01 for TO/L, respectively
• Nalchik 06/24 TO/L
• Novorossiysk 22/04 TO/L
• Sochi 24/06 TO/L

And then there's Soganlug with ATC providing the wrong instructions - it sends you to the right approach starting point but reports the other RWY (reported here).

I didn't do such detailed tests on other maps.

So shortly:

• In general, aerodrome prefers some direction and if there is strong enough opposite wind, TAC reverses the instructions - including beacons, as available (e.g. only approach NDBs are on).
• Some aerodromes have one direction for TO whatever you do, typically with a reverse direction for landing.

As for the prefered RWY for TO/L, those are the bold ones in the following table:

Edited July 12, 2023 by virgo47

[HR-Crumble]

I’ve raised this before in the forums as it often throws people in ME. 
 

Most airports in DCS have a ‘1st choice’ direction for TO and L - even if you set a few kts wind it won’t change AI jets or when you call ATC to take off into the wind. 
 

You need to set a minimum of 6kts wind to get AI to acknowledge an into wind TO and L. 
 

The exception to this rule is as mentioned by some users above - some airports have only ever a fixed active runway due to geographical or city restrictions. For example PG Map Khasab and some others I can’t remember right now on Caucasus map. 
 

Set 6kts and you can set the active with wind direction. Hope that helps!

 

Crumble. 

[western_JPN]

On 7/12/2023 at 11:18 PM, buceador said:

Edit:  I just lined up with a variety of different runways at North LV Nevada with different wind directions, each time ATC instructed me to land runway 25...

About North Las Vegas / Nevada, when you set stronger wind in just 120 / 300 direction --- ATC will use runway 12 or 30.

My test mission behaves so.

 

On 7/12/2023 at 11:18 PM, buceador said:

I did a quick test at Ras al Khaimah with a 10 knot wind speed running, in relation to the runway, N/S/E/W - 345 / 165 / 257 and 27 degrees.  Each time I was instructed to use the same runway - runway 17 (actually 17 doesn't exist it's 16).

I test Ras Al Khaimah in my own built missions, and I find this maybe a terrain module's specific bug instead of Mission Editor generic issue.

When I contact the ATC to land there, He always instruct to the runway 17 as you say.
But I set my aircraft "Takeoff from Runway" , its starting point is switched at 17's end or 35's end following the winds.
ATC's instruction about takeoff runway for "Takeoff from Parking" also chooses both runway directions correctly.
Only landing ATC is troubled about there.
I've search forum topics in PG map section, but not yet reported about this .... might be.