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Rock

RKSL Team
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Rock last won the day on July 27 2017

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About Rock

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    Site Admin
  • Birthday 02/09/72

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  • Website URL
    http://www.rkslstudios.info/
  • Skype
    rksl-rockape

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  • Gender
    Male
  • Location
    West Midlands
  • Interests
    Cat herding.

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  1. OK, so its snowing in parts of the UK. And for a change its actually stuck. Which means this country is in total Chaos. I don't know what it is about the UK population and snow that they lose the ability to drive, but that's just the way it is here. So in response to this embarrassing situation, I'm staying in doors for the duration. Which in turn means I either paint my hallway (which isn't going to happen) or i spend the day trying to work out how to accurately calculate all the necessary config values for a Helicopter in ArmA3 without the proper SDK from RTDynamics. Love it or hate it the ArmA3 Advanced Flight Model is here to stay. And once mastered its actually a lot more fun than the basic flight model. Far more satisfying to prove you have the real skill to fly properly than just fake it? Before we go any further lets address the aerodynamic representation of the Cow in the room. What does it mean? Why is it relevant? The Answer? It just made me laugh. Its the inspiration for writing this article simply because the absurdity of the image gels nicely with my feelings toward generating a practical config for the ArmA3 Advanced flight model. So for the last year or so I've been banging my head on my desk trying to work it all out and get all my helicopters up and working with it. This has led to some ...interesting craters on the various A3 Islands. But hey, its all leading towards progress. I have not failed. I've just found 10,000 ways that won't work. I used to be, I'm going to say, a pretty decent Aerospace Engineer back in the day. But even way back when I did get my hands dirty in CADDS5 and Catia some of the maths related to Aerodynamics scared the crap out of me. This article is not an all out Tutorial. Not even close. Lets think of it as the start of discussion. I'm going to share some things I've found along the way. If you have a better way to do something, or If I've gotten something wrong. SHOUT it out and we can all move on and learn together. For those that don't know much about the flight dynamics of ArmA3 helicopters, this isn't going to make much sense. For this that do know something about ArmA3 Helicopters this may make some sense...possibly. Step 1 - In your quest to lose hair and go gray early in your life. My best advice is find a class of helo; eg: small, med, heavy and modify these the stock values. There are some values you can calculate and others that require some mysterious and complicated voodoo incorporated into the RTDynamics SDK that we are not privy too. Step 2 - Research, maybe this should come first? You will need to find some basic facts about your aircraft. Dimensions, engine specs, mass, rotor blade dimensions. Other values we are simply going to try and make an educated guess. Step 3 - The joy of XML So we've got our XML file open. You are greeted by a wall of text, figures and variables that are both terrifying and baffling to all concerned. Some of the variables are easy to explain and find. Others are a little more esoteric and mysterious. You are going to see long tables of values as shown above with variable names like: SideForceDueToSideslip LiftDueToAoA DragDueToAoA DragDueToSideslip itchingMomentDueToAoA - YawingMomentDueToSideslip LiftDueToSideslip This is a calculated table of values. My best advice is find a class of helo, small, med, heavy and use the stock values. These are calculated by a RotorLib Plugin for MATLAB that on licensees have access to. Since we don't have all the tools we are guessing. BIS has provided a breakdown of the RotorLIB values as well as some of the formulas to create the values on the BIKI but it still isn't the most accessible read. https://community.bistudio.com/wiki/Helicopter_Flight_Model_Config_(XML) I'm not going to repeat everything in that BIKI article. I dont see the point. But some things need de-mystifying...and I don't have all the answers but i am willing to share We are going to focus and the values we can find online or in manuals or calculate from known values. Mass - Obvious really. This is the (I believe) empty weight of the helicopter. I'm basing this off values seen in the Littlebird and KA60 configs etc MomentsOfInertia - Ixx, Iyy, Izz, All these are unique to your helicopter type. They will change based on the dimensions and mass of the airframe relative to the "allup" Center Of Gravity (CoG) Engines: emergencyPowerHP - maxTorque DriveTrains TorqueLimits emergency Load gearRatio Main Rotor Load gearRatio Tail Rotor I'm in the process of writing an excel spreadsheet to help calculate all the values we are going to need. But its a long slog
  2. RKSL Bovington Test Area View File RKSL Bovington Test Area BETA Bovington Camp is a real location in the Southwest of England. Its primary use is to teach members of the British Forces to drive and use all the vehicles in the British inventory. But it is also used to test and develop new equipment and improvements to existing kit. The map was started after a conversation with MikePhoenix[http//https] about having a map to test our vehicles on. I blame him for all that followed. This represents a lot of blood, pain sweat and so many tears its really not funny. It is not the best product I've ever released. And I'm reluctant to release it in this state. But so many people want to get hold of it I've chosen to let it escape into the wild. Some things you really need to understand: 1) This really is an UNFINISHED, WORK IN PROGRESS!! Lots of broken and messed up things. 2) You MUST set your view distance to no more than 4000m to get the best performance. It uses and 4096x4096 height map and has a 1m per vertex resolution and any view distance over 4k causes massive FPS drops. 3) It will be updated and improved upon over time. That time frame may be months or millenia. 4) This version is a slight step backwards in terms of progress in that it has a lot of placeholder buildings and objects. 5) The green buildings are placeholders for custom buildings. These will be swapped out over time. 6) White objects are unfinished or I've screwed up. They will be replaced faster than the green buildings. 7) It was intended from day 1 to be an internal project soley for Mike and myself. 8) If you want to whine and whinge about it, just unsubscribe and move along. 9) And if you cant resist and are going to whinge. Be constructive and make a Bug report here: BUG TRACKER[www.rkslstudios.info] Version history V3.BETA40 First Public BETA Release Stats: 16.777 sq Km 99,960 ish objects. Some custom roads, Lots of custom objects, 600m Firing Range with custom firing points. 25m Pistol Range LEGAL & EULA http://eula.rkslstudios.info/ Credits Created by: RKSL Rock Custom Objects by: MikePhoenix and RKSL Rock Tested by: Farsight Smudge Siddy - (when he could remember to download the right version) SmokeDog Kyle John M - Lots of ref pics and advice. If you would like to donate, I would appreciate it. Especially now with COVID its hard for people to do but If you like the map and our addons dropping me a Kofi would be appreciated Rock Oct 20 Submitter Rock Submitted 12/10/20 Category ArmA3  
  3. Version 3.BETA40

    150 downloads

    RKSL Bovington Test Area BETA Bovington Camp is a real location in the Southwest of England. Its primary use is to teach members of the British Forces to drive and use all the vehicles in the British inventory. But it is also used to test and develop new equipment and improvements to existing kit. The map was started after a conversation with MikePhoenix[http//https] about having a map to test our vehicles on. I blame him for all that followed. This represents a lot of blood, pain sweat and so many tears its really not funny. It is not the best product I've ever released. And I'm reluctant to release it in this state. But so many people want to get hold of it I've chosen to let it escape into the wild. Some things you really need to understand: 1) This really is an UNFINISHED, WORK IN PROGRESS!! Lots of broken and messed up things. 2) You MUST set your view distance to no more than 4000m to get the best performance. It uses and 4096x4096 height map and has a 1m per vertex resolution and any view distance over 4k causes massive FPS drops. 3) It will be updated and improved upon over time. That time frame may be months or millenia. 4) This version is a slight step backwards in terms of progress in that it has a lot of placeholder buildings and objects. 5) The green buildings are placeholders for custom buildings. These will be swapped out over time. 6) White objects are unfinished or I've screwed up. They will be replaced faster than the green buildings. 7) It was intended from day 1 to be an internal project soley for Mike and myself. 8) If you want to whine and whinge about it, just unsubscribe and move along. 9) And if you cant resist and are going to whinge. Be constructive and make a Bug report here: BUG TRACKER[www.rkslstudios.info] Version history V3.BETA40 First Public BETA Release Stats: 16.777 sq Km 99,960 ish objects. Some custom roads, Lots of custom objects, 600m Firing Range with custom firing points. 25m Pistol Range LEGAL & EULA http://eula.rkslstudios.info/ Credits Created by: RKSL Rock Custom Objects by: MikePhoenix and RKSL Rock Tested by: Farsight Smudge Siddy - (when he could remember to download the right version) SmokeDog Kyle John M - Lots of ref pics and advice. If you would like to donate, I would appreciate it. Especially now with COVID its hard for people to do but If you like the map and our addons dropping me a Kofi would be appreciated Rock Oct 20
  4. I get really low FPS

    Changed Status to Closed
  5. I get really low FPS

    Set your view distance to NO MORE THAN 4000m. This map uses very high resolution heightmap. Its the same as Altis. Your machine is trying to draw everything at once. The map is on 4x4km. Dropping your view distance down means the game engine will only draw what it needs to and not more. Your FPS will increase again.
  6. I get really low FPS when I load the map.
  7. Try to taxi out onto the airfield and weird things happen. The plane does donuts and wont land.
  8. The Big sheds have been temporarily removed and replaced with Placeholders becasue they weren't finished yet. They will be added in very soon.
  9. Where's the Sheds with the Roller shutter door?
  10. More Roller Shutter door porn (Seems to be a thing given so many views) This is in game and working in the latest build. Pics of of the full shed in all its glory later. #BovTestArea #wip #arma3
  11. Not exactly 0400 but its still late or early depending on your pov. But finally unwrapped and now has a quick coat of paint on the Main Shed Stairs for our #BovTestArea map for #Arma3 #rksl #wip
  12. So its 0400 again and I'm still awake and working on the main shed for our #BovTestArea map for #Arma3. Some things look so easy but prove to be so damn hard. I hate making Staircases. #rksl #wip
  13. Since the #BovTestArea Roller Shutter door seems to have attracted a lot of attention here's the painted model. I may stream the assembly in O2/OB free time permitting. #rksl #wip
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