How do you set wind for carrier landing

[ruddy122]

Looked at NATOPS and said F/A-18 wants 30 kts over deck for arrested landing

 

What’s the easiest way to set the wind in Mission Editor

 

Thanks

 

 

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I did it after much trial and error

I took the draw tool and measured the direction put wind 180 from it and put 30 kts till 1600 ft

Is that correct?


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[razo+r]

5 minutes ago, ruddy122 said:

What’s the easiest way to set the wind in Mission Editor

The easiest way is by putting in numbers in the fields for the wind.

 

Edited September 14, 2022 by razo+r

[raus]

I'd say 30kts over the deck are a combination of wind and the carrier's speed, so if it is sailing at 15kts against the wind, you'd just need 15kts wind

[Minsky]

This might help:

Nav wind is what you set in the mission editor.

Note that "preferred" doesn't mean "mandatory".

[ruddy122]

It makes sense

Gonna try that tonight

Thanks

See an old Former KC-10 driver can learn new tricks


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[Nealius]

In terms of speeds, my preference is about 27kts down the angle, with 4-7kts natural wind (so 20-23kts carrier speed) depending on whether or not I'll be bombing things in that weird altitude block between 500m and 2000m where the DCS weather model adds insane windsheer.

Edited September 14, 2022 by Nealius

[BuzzU]

Don't they always point the boat into the wind? We shouldn't ever have a crosswind landing right?

[Raisuli]

29 minutes ago, BuzzU said:

Don't they always point the boat into the wind? We shouldn't ever have a crosswind landing right?

I read somewhere that BRC can change in the middle of recovery without any warning as the boat adjusts course to keep the wind over the deck, which means the pilots have to adjust their landings accordingly.

They must be professionals or something, because I'm lucky to get down when the boat isn't twitching around on me.  I did a bunch of touch and gos and let the group get to a turning point once.  That was ugly.

[maxTRX]

12 minutes ago, Raisuli said:

...I'm lucky to get down when the boat isn't twitching around on me.  I did a bunch of touch and gos and let the group get to a turning point once.  That was ugly.

Reminds me of this other sim and the drivable boat that my virtual squadron used on occasions.  On those rare days when everyone got their s**t together things were going really smooth, our skip always knew how to spice things up. One of the boredom breaking routings was making the boat gradually change course, without making any BRC change calls. Fun, fun, fun

[maxTRX]

2 hours ago, Nealius said:

In terms of speeds, my preference is about 27kts down the angle, with 4-7kts natural wind (so 20-23kts carrier speed) depending on whether or not I'll be bombing things in that weird altitude block between 500m and 2000m where the DCS weather model adds insane windsheer.

 

Has anyone ever experienced this wind shear? I've done some tests a while back flying through this 'doubled' block (climbing and descending) at 90deg from the wind direction, at 250kts and never noticed any momentary yaw change or VV jolt on the HUD. The ground track always remained the same. I set the wind to different values and the results were always the same.

[Tusky]

Wind on deck is a trigonometry problem and it is up to you to decide what parameters to use.

You can use this link https://www.calculator.net/triangle-calculator.htm  where:
Angle A: angle of relative wind calculated from BRC
Angle C: angle of wind calculated from BRC (actually it is 180°- angle C)
Side a: speed of relative wind
Side b: ship's speed
Sice c: speed of wind

Example:
Relative wind direction: 9° left of BRC (this way the relative wind will blow down the runway centerline)
Relative wind speed: 27kn (headwind - between 25kn and 30kn)
Ship's speed: 15kn

Using the link above:
Set 9° on angle C (upper angle)
Set 27 on side a (right side)
Set 15 on side b (left side)
Press calculate
The result is (to be set in the mission editor):
  Wind speed: 12.4kn (side c)
  Wind direction: 180°-160 = 20° to the left of BRC (180°- angle A)

You can also use:
- a piece of paper, a pen, a ruler (e.g. 1cm=1kn) and a protractor
- the wind side of a flight computer

Edited September 15, 2022 by Tusky

[Nealius]

On 9/15/2022 at 3:17 AM, oldcrusty said:

Has anyone ever experienced this wind shear?

Yes. It's most noticeable when something is on fire/smoking, but I do see my VV shift on occasion. Ground track typically remains the same since I'm in an FBW aircraft keeping the ground track where I want it.

On 9/15/2022 at 7:07 PM, Tusky said:

The result is (to be set in the mission editor):
  Wind speed: 12.4kn (side c)
  Wind direction: 180°-160 = 20° to the left of BRC (180°- angle A)

I've tried this trig method a few times, and even at lower wind speeds like 6~7kts, the wind pushing from the port totally screws up the 90, forcing an overshoot unless I pull 55-60 degrees of bank. This is from abeam position of 1.1~1.2nm. 

[Foka]

Just set the wind, run the mission, jump into LSO station and check wind on PLAT cam.

Correct, check, repeat until you're happy with settings - 25-30 kts WOD and no crosswind.

[Nealius]

That method also results in an overshoot if the wind speeds have any decent speed. To get on centerline without LSO yelling "wings" at you, the best bet is to have the wind 9 degrees left of BRC. With this setup you will never need more than 35 degrees AoB in the last 90. The first 90 is an instrument turn with 30AoB, the last 90 is visual with AoB as required, but within a safe margin. All of these trig problems and using the LSO station to cancel out "crosswind" is overcomplicating a simple setup. The "crosswind" is simply the ship's movement away and to starboard, which is completely normal. I have yet to see IRL footage where the VV is straight down the angled deck as the "no crosswind" solutions here would give.

There's also the option of letting the Airboss scripting handle it automatically. The lua scripting is really daunting at first but I'm glad I bit the bullet and learned it. 

Edited September 18, 2022 by Nealius

[ruddy122]

DCS does something weird on the latest OB update

The Mission Editor adds "Blows To" on the winds, so for a headwind its another 180 calculation

Here's my things

BRC=48

Angle A = 86

side c = 5

180-86=94

BRC-94=314

wind in Mission Editor 134/5

Ship Speed = 30

H/W= 30

[ruddy122]

I'm still terrible at it

It's amazing how the navy pilots catch a wire in the weather and the boat moving every which way

I used to worry on how many lights I see on a coupled (Autopilot and Auto-Throttle turned on in a KC-10) ILS, navy pilots worry about a lot

Hats off to them