http://permalink.gmane.org/gmane.games.flightgear.flightmodel hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1575 <pre> That whooshing sound you just heard was your joke screaming over my head at some significant fraction of c. :) g. </pre> geneb 2013-04-30T19:46:32 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1574 <pre> Is the name "Charcot's Renderer" to complicated for you? ;-) ------------------------------------------------------------------------------ Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with &lt;2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 </pre> Heiko Schulz 2013-04-30T19:31:44 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1573 <pre>Hello, I need airplanes model of Aerosonde uav to Flight Gear and I didn't find to download. Anybody help me? Thanks ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnnow-d2d_______________________________________________ Flightgear-flightmodel mailing list Flightgear-flightmodel&lt; at &gt;lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-flightmodel </pre> Simin Jahangard 2013-01-27T13:15:06 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1572 <pre> Assuming you're using FlightGear, look in /fdm/jsbsim, you'll find these folders: accelerations - output accelerations aero - working folder for aerodynamics atmosphere - output on what the atmosphere is locally attitude - yaw pitch roll fcs - working folder for the flight control system * forces - forces acting on the model in various frames gear - working folder for contact points ic - initial conditions inertia - vehicle mass and cg inertial - navigation stuff metrics - data on vehicle lengths and areas * moments - moments acting on the model in various frames position - output position propulsion - working folder for engines and thrusters simulation - simulation control stuff systems - model systems, fuel control or other things velocities - output velocities It sounds like you're looking for: (the w in fwx is for wind frame) forces/fwx-aero-lbs == drag forces/fwy-aero-lbs == side forces/fwz-aero-lbs == lift (the b in fbx i</pre> Ron Jensen 2012-10-14T13:40:17 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1571 <pre>Hi, good evening! I am studing some features of JSBsim and I need to get some flight and simutation properties. Many of them I have no trouble but some have been hard to get. They are: - Drag force; - Lift force; - Inside force; - Traction force; - Roll moment; - Yaw moment and - Pitch moment. I have used a property-list protocol like this: &lt;PropertyList&gt; but I have no idea of the property node to get those properties. Could someone help me? All the best, Leandro Lima ------------------------------------------------------------------------------ Don't let slow site performance ruin your business. Deploy New Relic APM Deploy New Relic app performance management and know exactly what is happening inside your Ruby, Python, PHP, Java, and .NET app Try New Relic at no cost today and get our sweet Data Nerd shirt too! http://p.sf.net/sfu/newrelic-dev2dev_______________________________________________ Flightgear-flightmodel mailing list Flightgear-flightmodel&lt; at &gt;lists.sourceforge.net htt</pre> Leandro Santos de Lima 2012-10-14T01:22:11 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1570 <pre>In this case, the Cl is roll moment coefficient, not CL, the lift coefficient The attached file shows a new format for JSBSim files that I came up with. It works just as well as the older format, but the formulation of the coefficients more closely matches classical aerodynamic textbook equation buildup. Feel free to use this, or the older format. They are both equally valid. Bill ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2_______________________________________________ Flightgear-flightmodel mailing list Flightgear-flightmodel&lt; at &gt;lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-flightmodel </pre> Bill Galbraith 2011-10-01T12:27:49 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1569 <pre>Hello Bill This is a good suggestion, thank you. I understand about calculating 2(4) different CL-s. Do I also understand correctly we will than have use something you guys did to the flaps once: &lt;axis name="ROLL"&gt; ................. &lt;function name="aero/coefficient/CldF3"&gt; &lt;description&gt; Roll Moment Coefficient due to Asymetrical Fowler Flaps Deflection calculated as difference between left and right flap lift coef, times distance from centerline to MAC of surface. &lt;/description&gt; &lt;product&gt; &lt;value&gt; 21.28&lt;/value&gt; &lt;difference&gt; &lt;property&gt;aero/coefficient/CLdF3R&lt;/property&gt; &lt;property&gt;aero/coefficient/CLdF3L&lt;/property&gt; &lt;/difference&gt; &lt;/product&gt; &lt;/function&gt; in order to calculate the moments due to difference in individual CLs ? With best regards, Oleksiy Frolov ----------------------------------------</pre> Oleksiy Frolov 2011-10-01T04:03:21 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1568 <pre> No reason that you couldn't build this inside of the existing JSBSim format without using the external forces. Divide your wing into panels, maybe (on each side) one that is influenced by the propeller slipstream, one not. Sum all of your lifts to apply them at the aero reference point. So with a two engine aircraft, you might have a total of four panels, two per wing half, one inboard in the slipstream, one outboard in clean air. A mismatch of forces left/right would normally shift the aero reference point left or right, but that can be resolved with a moment. You have a couple advantages doing this. A force at a distance is a moment, so if the outer panels are experiencing different lift forces, that lift times its arm creates a moment. If the aircraft is rolling, each wing sees a different angle of attack, and therefore different lift. This is usually handled other ways, but your method has the advantage of spinning properly. There are disadvantages, though. If you are going to that trouble, you mi</pre> Bill Galbraith 2011-09-30T21:46:28 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1567 <pre> No reason that you couldn't build this inside of the existing JSBSim format without using the external forces. Divide your wing into panels, maybe (on each side) one that is influenced by the propeller slipstream, one not. Sum all of your lifts to apply them at the aero reference point. So with a two engine aircraft, you might have a total of four panels, two per wing half, one inboard in the slipstream, one outboard in clean air. A mismatch of forces left/right would normally shift the aero reference point left or right, but that can be resolved with a moment. You have a couple advantages doing this. A force at a distance is a moment, so if the outer panels are experiencing different lift forces, that lift times its arm creates a moment. If the aircraft is rolling, each wing sees a different angle of attack, and therefore different lift. This is usually handled other ways, but your method has the advantage of spinning properly. There are disadvantages, though. If you are going to that trouble, you mi</pre> Bill Galbraith 2011-09-30T21:27:52 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1566 <pre>Thank you. You are right, I meant the &lt;force&gt; clause in the external force section. Thank you for the links, I will study your work on this issue. With best regards, Oleksiy Frolov ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 </pre> Oleksiy Frolov 2011-09-30T21:04:02 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1565 <pre> A better place to ask might be on the JSBSim user list JSBSim user questions &lt;jsbsim-users&lt; at &gt;lists.sourceforge.net&gt; In the aerodynamics section of a JSBSim configuration you are only allowed one force vector, applied at aerorp, and consisting of lift, drag and side or normal, axial and side. You can also specify the moments for yaw, pitch and roll. An alternative is to use the 'external force' section of JSBSim. This allows you to specify an arbitrary number of forces, each of which can be applied at separate points on the airframe and can be computed in different axis systems. I've played a little with doing the vertical stabilizer as external forces in the JSBSim config I did for the Gloster Meteor: https://gitorious.org/ron-s-hanger/gloster-meteor The JSBSim config is here: https://gitorious.org/ron-s-hanger/gloster-meteor/blobs/master/gloster-meteor-jsb.xml And the systems file that computes the external force is here: https://gitorious.org/ron-s-hanger/gloster-meteor/blobs/master/Systems/exte</pre> Ron Jensen 2011-09-30T20:52:31 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1564 <pre>Hello I am trying to simulate the effects of the differential wing lift. Such as single wing stall due to the propwash loss at a low speed, and the effect of the icing on a single wing (which can happen during a deicing failure on that wing). All of these are important aerodynamic effects. Now, we know we only have one wing in jsbsim currently, not 2. My idea is therefor to try using 2 &lt;force&gt; records to simulate the wings separately, instead of the usual CL record. This however would require some kind of algorithm to define how the force origin moves to overlay with center of lift for each wing, which is probably not an easy task I was wondering if anyone have tried a similar approach before, and if this problem pechaps has an easier solution ? Thank you regards, Oleksiy Frolov ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, secu</pre> Oleksiy Frolov 2011-09-30T19:43:24 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1563 <pre>Hi, We have an RC scale aircraft called the "Rascal 110" available for download here. http://www.flightgear.org/download/aircraft-v2-4/ I'm working on a 92" flying wing model, but it's not quite ready for first release. All FlightGear aircraft can be flown from a variety of vantage points including a "cockpit" view, tower view, chase view, fly-by view, etc. And there are ways to create your own views if you want to dig under the hood a bit. Even full scale aircraft can be flown from a tower view ... but the Rascal is probably the best developed FlightGear aircraft that has RC scale and performance characteristics. Regards, Curt. 2011/9/27 鳥枝亮介 </pre> Curtis Olson 2011-09-27T15:22:36 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1562 <pre>I am a Japanese college student. I am looking for the web site where the radio control model of flight-gear appears. If you know, please let me know. Thank you for your consideration. ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1_______________________________________________ Flightgear-flightmodel mailing list Flightgear-flightmodel&lt; at &gt;lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-flightmodel </pre> 鳥枝亮介 2011-09-27T06:42:29 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1561 <pre>e. You already read the wiki and the official docs and you think it's not sufficient to build a plane, and you need additional sources -fred -Frederic Bouvier Ron Jensen &lt;wino&lt; at &gt;jentronics.com&gt; a écrit : On Monday 05 September 2011 08:20:29 Ron Jensen wrote: Just to help you understand why we ask this question we have a few theories on why you asked for non-official sources: a. You want to develop payware and want non-official sources trying to avoid GPL Liability. b. You think secondary sources would be more accurate and technically complete than the official documentation. c. Your are looking for obscure sources in an attempt to cheat in some kind of school report work. d. We are totally misunderstanding what you are trying to ask. Sometimes too broad a question is too hard to answer correctly. Ron ------------------------------------------------------------------------------ Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even be</pre> Frederic Bouvier 2011-09-06T06:37:31 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1560 <pre> Just to help you understand why we ask this question we have a few theories on why you asked for non-official sources: a. You want to develop payware and want non-official sources trying to avoid GPL Liability. b. You think secondary sources would be more accurate and technically complete than the official documentation. c. Your are looking for obscure sources in an attempt to cheat in some kind of school report work. d. We are totally misunderstanding what you are trying to ask. Sometimes too broad a question is too hard to answer correctly. Ron ------------------------------------------------------------------------------ Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free "Love Thy Logs" t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev </pre> Ron Jensen 2011-09-06T03:50:55 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1559 <pre> Welcome, Kunai, José Regalado answered your first question yesterday by pointing you at http://wiki.flightgear.org/Flight_Dynamics_Model I'll suggest further that JSBSim or YASim are the only two physics engines in active use. José answered your second question with another, very valid, question. What is wrong with using the wiki and other official site documentation? Ron ------------------------------------------------------------------------------ Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free "Love Thy Logs" t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev </pre> Ron Jensen 2011-09-05T14:20:29 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1558 <pre>Hello, My name is kunai. I played FlightGear recently. Now, I have two questions about FlightGear. 1. What physics engine is FlightGear using ? 2. Could you tell me websites which were written how to make the FlightGear models without wiki and official site ? kunai------------------------------------------------------------------------------ Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free "Love Thy Logs" t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev_______________________________________________ Flightgear-flightmodel mailing list Flightgear-flightmodel&lt; at &gt;lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-flightmodel </pre> kunai090< at >yahoo.co.jp 2011-09-05T12:05:28 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1557 <pre>Hi kunai 1. http://wiki.flightgear.org/Flight_Dynamics_Model 2. why?. The wiki is the powerfull doc :-)?. </pre> Jose Regalado 2011-09-04T21:52:00 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1556 <pre>Hello, My name is kunai. I played FlightGear recently. Now, I have two questions about FlightGear. 1. What physics engine is FlightGear using ? 2. Could you tell me websites which were written how to make the FlightGear models without wiki and official site ? kunai------------------------------------------------------------------------------ Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free "Love Thy Logs" t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev_______________________________________________ Flightgear-flightmodel mailing list Flightgear-flightmodel&lt; at &gt;lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-flightmodel </pre> kunai090< at >yahoo.co.jp 2011-09-04T21:12:27 http://permalink.gmane.org/gmane.games.flightgear.flightmodel/1555 <pre>On Sun, 29 May 2011 18:20:59 -0430, Jose wrote in message &lt;BANLkTinwSJub81ocDZb-Z6-DBvBxuXyigg&lt; at &gt;mail.gmail.com&gt;: ..flightgear-flightmodel is a list to develop etc the flight dynamics models (FDM), which decides "how it moves" and not "how it looks." ..the exception to my rule above is when the FDM is run too slow, the modeled aircraft will more or less visibly oscillate between 2 different positions or attitudes. ..but let's stay here until we know this is a flightgear developed bug, or an upstream bug, or an user's usage issue. ..if this is a genuine flightgear screen shot, how exactly did you manage to get it????? ..oscillating between the 2D and the 3D panel is one of the things in FG that I am 100% sure of should _not_ happen. ..fgfs commandline used, which video card, which video driver, which operating system, which version, which cpu, ram etc. </pre> Arnt Karlsen 2011-06-07T08:43:59 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.games.flightgear.flightmodel