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how to make SAR helicopter have same speed as carrier


probaco

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Tried everything to let the helicopter follow the carrier on the same speed.

 

Example:

I place the Rooseveld and SH60 on same heading. helicopter is on the 2 o'clock position.

Carrier is doing 11kts and helicopter is doing 15kts and within 15 minutes she's on the back of the ship. If I set it to 16kts..she's too fast.. within 15 minutes there is a ships length distance between them.

 

Tried fiddling with the speeds of the carrier and heli, but still same outcome. She's falling behind or rushing in front.

 

Is there a way she is linked to the carrier like a static plane/ helicopter so she has the same speed whatever happens.

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Hmm, so far I haven't had any trouble getting a helicopter to stay where I want it.

 

Then again I start it in the air, doing the same speed as the ship. What I do is I use the ruler to make sure it's start and last waypoint before landing is the same tangential distance from the ship's path.

 

That said, it would be nice if there was a way to make AI waypoints move with another unit or something similar to the escort/follow tasks for ground vehicles and ships that is available to helicopters.

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I have the same problem:

 

Carrier (not only affects SuperCarrier) at 11kts going to a waypaoint 1 with ETA time at 8:50.00.

 

SH60 at the side of the carrier at 100ft altitude, 11kts going to waypoint 1 at the same spot of the one from carrier at ETA 8:50.00

 

Some minutes after the start of the mission the helicopter has surpasses the carrier

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For the helo I use this script and works perfectly:

 

https://forums.eagle.ru/showthread.php?t=215825

 

I know many people dont like scripts, but this one is pretty easy to use ... needing just a small text configuration file, like this:

 

-- Rescue Helo @ Stennis
RescueHeloStennis=RESCUEHELO:New("Stennis", "Stennis Rescue Helo")
RescueHeloStennis:SetTakeoffAir()   -- Helo will be spawned and respawn in air.
RescueHeloStennis:Start()

 

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For the helo I use this script and works perfectly:

 

https://forums.eagle.ru/showthread.php?t=215825

 

I know many people dont like scripts, but this one is pretty easy to use ... needing just a small text configuration file, like this:

 

-- Rescue Helo @ Stennis
RescueHeloStennis=RESCUEHELO:New("Stennis", "Stennis Rescue Helo")
RescueHeloStennis:SetTakeoffAir()   -- Helo will be spawned and respawn in air.
RescueHeloStennis:Start()

 

not sure I understand how to make this happen.

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I think wind effects the helo but not the carrier.

 

 

I made a basic SC mission with a helo alongside. But because DCS imputs the wind backwards in the mission editor (and because I didn't know this) the first time I ran it the carrier had a tailwind, making it impossible to do recoveries. But I noticed the helo moved gradually ahead of the ship.

 

 

When I reversed the wind in the mission editor to provide a headwind, the helo gradually fell back from the ship.

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@Rudel.

 

I made a lua file of the script mentioned at the Tarawa:

 

-- Rescue Helo @ CVN-71.

rescueheloRooseveld=RESCUEHELO:New("CVN-71", "Rescue Helo")

rescueheloRooseveld:Start()

 

Loaded it at the start of the mission with the run script file as a trigger.

 

Result:

If I give it a waypiont... It will do the same as before. Falling behind or rush in front.

 

If I remove the waypoint.. I now got a SAR heli which takes off... do a circle around the boat and lands....

 

Scripting isn't my cup of tea so what am I doing wrong here


Edited by probaco
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Start with setting the helicopter already flying. Since the helicopter is going to lift off the deck before you get to the flight deck anyway it doesn't really matter if you see the helicopter take off anyway.

Start point for the helicopter is 1/4 mile starboard abeam the carrier.

Make the arrival time of the next helicopter waypoint the same as the arrival time of the carrier at the corresponding waypoint.

It will calculate and fly the necessary speed and correct the ground track to compensate for winds so you don't have to math too hard. Forget scripting. Make everything a function of time.

If everything starts and ends at the same time and location yadda yadda yadda it works.

 

tenor.gif

 

This has never worked correctly for me.

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not sure I understand how to make this happen.

 

 

I will make a video and post it tomorrow.

 

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Tried this. If I set the same heading for a distance of 200mls and same speed,,, the heli should arrive 15 seconds earlier... But in "reality" heli falls back and the carrier wins.

 

So I think the only way is to run a script. But because I'm no employee of Bill Gates my scripting skills are the same as my astronaut skills. Therefor I need a wizzkid to tell me what to do.

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Just to add, since I have the same problem: Even though the GS (for Ground Speed) checkbox is checked in the mission editor for both CV and helo, the helo still passes/falls behind the carrier. ie. With the GS box checked, wind, density altitude etc should have no effect, but 25 kts for both CV and helo still results in a split.

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Feature request. Waypoints that anchor to other units for the sar helo and tanker. Having to use moose to do this is painful and not very accessible to the common player.

 

And you'd have the added benefit of being able to create correct departure procedures from a carrier. i.e. out to 7nm @500ft/300Kts.

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I will make a video and post it tomorrow.

 

Here it is :)

 

UYofwyEjrlE

 

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Could you give the lua text which you used in the 2 files. Thanx in advance.

 

Sure,

 

The Lua for the helo is just a 3-line text file, its content is on post 5 above: https://forums.eagle.ru/showpost.php?p=4346909&postcount=5 You have to edit the names of the carrier and the Helo, that's all. I'm attaching the exact file I used on the video.

 

The other file is the Moose script framework, you don't need to edit it in anyway. Download it here:

 

https://github.com/FlightControl-Master/MOOSE/releases

 

(you only need the Moose.lua file, ignore the rest. I renamed it to Moose 2.5.0 just to document which version it is).

 

Best regards

Rescue Helo Roosevelt.lua


Edited by Rudel_chw

 

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Sure,

 

The Lua for the helo is just a 3-line text file, its content is on post 5 above: https://forums.eagle.ru/showpost.php?p=4346909&postcount=5 You have to edit the names of the carrier and the Helo, that's all. I'm attaching the exact file I used on the video.

 

The other file is the Moose script framework, you don't need to edit it in anyway. Download it here:

 

https://github.com/FlightControl-Master/MOOSE/releases

 

(you only need the Moose.lua file, ignore the rest. I renamed it to Moose 2.5.0 just to document which version it is).

 

Best regards

 

So you implement the entire file with not just only the SAR helo text .... OK. Will try that.

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Can't get the carrier to it's given speed in the first place. It's broken there already. They're always a lot slower.

 

Dont you get tired of always complaining and being negative? .. I know that I should just shut up and quietly add you to the ignore list, but maybe you don't realize how whiny are most of your posts, that just rant instead of being helpful. :mad:

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Dont you get tired of always complaining and being negative? .. I know that I should just shut up and quietly add you to the ignore list, but maybe you don't realize how whiny are most of your posts, that just rant instead of being helpful. :mad:

 

You take it too serious there. I'm just dropping a fact here. It's impossible to have a WOD of 30kts appropriate for CASE I with zero wind as the carrier maxes out at ~26-27kts even if set to 30kts in the ME. And it's well known these probably go faster even if it's classified. The data I see everywhere is "30+", some older carriers however have given top speeds of 33-36kts. I think it's a valid complaint if it doesn't even reach those 30kts. What if the Tomcat only went M 2.15 instead of 2.34? Oh wait - it does... can make a hell of a difference. I don't want to be the negative one, but apparently I sound/read more so as intended. Having someone point me out to it actually is more helpful to improve than just ignoring.

 

BTW I do appreciate the work done with those scripts very much, but I prefer to have a clean mission for testing purpose. It's not wise to file bug reports with tons of "mods" attached to them.

dcsdashie-hb-ed.jpg

 

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  • 1 year later...

Here is how I have been handling this issue so far, without scripting. It seems to work ok. Plus, I like to see the SAR bird take-off from the carrier. It's cool for videos and just general effect.

For this example I am using the Forrestal as the carrier and a Huey as the SAR bird. This is something I'm doing in an early war mission. To keep the example simple, I am just placing 1 waypoint at the final destination of the carrier. In this example, it is simply cruising along the coast at 11 kts.

1. Place carrier in ME.
2. Set destination waypoint, speed 11kts. GS checked. Note the time of arrival.
3. Place helo in ME. Air start or take-off, your choice. I use "Take off from parking hot". 
4.Set the destination waypoint next to the destination waypoint of the carrier. Check 'Fix Time', enter the time of the carriers arrival at it's final destination.
- Now the carrier and the helo will arrive at the end of the route at the same time.
- You will see that the ME has adjusted the entry in the speed box.

Now we are going to synchronize their paths.

5. Select the carrier in the ME.
6. Add a waypoint slightly in front of the carriers initial position so that the time of arrival is about 3 minutes after the initial spawn point. Note the time of arrival.
- If the carriers first waypoint is at 14:00:00, you want the second waypoint at about 14:03:00.
- It doesn't have to be to-the-second but we need enough time for the helo to take off and fly it's departure pattern.
7. Set the speed of the carrier at the second waypoint to the speed at the last waypoint, in my example, 11 kts.
- Now the carrier is going to spawn, adjust it's speed and arrive at the first waypoint doing 11 kts.
-It's going to continue on it's course doing 11 knots and arrive at the destination at a certain time.
- The time of the waypoint arrival may change when you change the speed, if so, adjust the waypoint's location for an arrival time of about 3 minutes after spawn.
8. Select the helo and set a waypoint right next to the 3-minute waypoint of the carrier.
9. Set the arrival time of the helo at the waypoint to coincide with the carriers arrival at it's waypoint, and check 'Fix Time'.

Basically we are telling the carrier to move to waypoint 1 and then 2 at a particular speed.

We are then telling the help to move to waypoint 1 and then 2 to arrive at a particular time, that matches the carriers time of arrival.

I hope this helps.

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