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Found 5 results

  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. Reworked-Console.JPG

    From the album Puma HC1 for ArmA3

    This started out as a simple matter of fixing an issue with the RVMATS and ended up with rebaking textures.

    © RKSL Studios

  3. Puma HC1 2017 Edition

    From the album Puma HC1 for ArmA3

    This started out as a simple matter of fixing an issue with the RVMATS and ended up with rebaking textures.
  4. So BIS have released all the tools, Rock's got his life back and has an internet connection that actually works 24/7 and is actually faster than the Postman...So we're back. After a 6month hiatus for personal reasons things have finally settled down and we're slowly starting to pick up where we left off. To that end I am delighted to announce that we will soon(tm) be releasing the ArmA3 native Typhoon v3.000. All the joys of ArmA3 features and the usual RKSL ones... Fully working mirrors BIS flares Engine & Smoke effects PhysX support Tweaked Flight model Improved Air Weapons Pack All previous ArmA2 plugins brought over to ArmA3 And a few more... Frequently Asked Questions Q: Will WIP Wednesdays be returning? A: Yes but only once at the end of each month. As much fun as they were they turned into a bit of a monster in terms of time to prepare and publish. They took quite a lot of time away from the actual act of making content which wasnt the point. Q: Will you be bringing all the old RKSL content over? A: Yes, eventually. One by one we will port the existing models over and include the new ArmA3 features. The first releases will be direct ports with the basic A3 features etc. Later releases will see improvements or in some cases new models. Q: What about new content? A: Yes there will be some new content but we are going to focus ont he stuff we have shown you already in the previous WIP Wednesdays. Q: When are you going to release XXXXX addon(s) A: If you've been hanging around in this community long enough you already know the answer to that. If you are new... (Old timers all together now)... "When its done!!" Q: Whats happening with IAP? (Ilhas Africanos Project) A: We'll create a new thread for that at the appropriate time. Thats all for the moment. Keep an eye on the RKSL website for more details.
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