Jay2 Posted March 6, 2020 Share Posted March 6, 2020 Greetings, I have an AI aircraft and its front wheels sink in to the ground (see photo). This is not a swamp. All other AI aircraft on site function properly. Does any one have any ideas on where I can start to look for the problem? I assume it is in the aircraft.cfg file. [contact_points] point.0=1.000, -13.300, 0.00, -1.60, 2165.300, 0.000, 0.538, 12.00, 0.800, 2.500, 0.700, 0.000, 0.000,0.000000,0.000000,0.000000 point.1=1.000, 1.50, -2.920, -4.50, 1968.500, 1.000, 0.512, 0.000, 0.400, 2.500, 0.700, 0.000, 0.000, 1.000, 0.000, 0.000 point.2=1.000, 1.50, 2.920, -4.50, 1968.500, 2.000, 0.512, 0.000, 0.400, 2.500, 0.700, 0.000, 0.000, 2.000, 0.000, 0.000 point.3=4.000, -13.300, 0.00, -1.30, 2165.300, 0.000, 0.538, 12.00, 0.800, 2.500, 0.700, 0.000, 0.000,0.000000,0.000000,0.000000 point.4=4.000, 1.50, -2.920, -4.20, 1968.500, 1.000, 0.512, 0.000, 0.400, 2.500, 0.700, 0.000, 0.000, 1.000, 0.000, 0.000 point.5=4.000, 1.50, 2.920, -4.20, 1968.500, 2.000, 0.512, 0.000, 0.400, 2.500, 0.700, 0.000, 0.000, 2.000, 0.000, 0.000 FS2004 Thanks Jay Link to comment Share on other sites More sharing options...
CRJ_simpilot Posted March 7, 2020 Share Posted March 7, 2020 (edited) It would definitely be the contact points. I don't mess with contact points unless I really have to and I'm not a modeler. But this resource may help you. http://msdn.microsoft.com/en-us/library/cc526949.aspx#mozTocId38401 In there it should state what contact point means for what axis, etc. I also think there's another option in the CFG file for the spring tension or something like that. Edit - Here's the exact section you want. https://docs.microsoft.com/en-us/previous-versions/microsoft-esp/cc526949%28v=msdn.10%29?redirectedfrom=MSDN#contact_points Edited March 7, 2020 by CRJ_simpilot OOM errors? Read this. What the squawk? An awesome weather website with oodles of Info. and options. Wile E. Coyote would be impressed. Link to comment Share on other sites More sharing options...
Jay2 Posted March 7, 2020 Author Share Posted March 7, 2020 Thank you CRJ for getting me pointed in the right direction, a very good resource, spot on. Jay Link to comment Share on other sites More sharing options...
keefpee Posted March 7, 2020 Share Posted March 7, 2020 Could also be the C of G height, & I believe that AI aircraft undercarts do not animate so stay at extended length - could be wrong...Good luck Keith Link to comment Share on other sites More sharing options...
DirkDP Posted March 8, 2020 Share Posted March 8, 2020 Hi, If you mean static_cg_height, that only has effect in slew mode, as does static_pitch. This is what the numbers stand for: //0 Class //1 Longitudinal Position (feet) //2 Lateral Position (feet) //3 Vertical Position (feet) //4 Impact Damage Threshold (Feet Per Minute) //5 Brake Map (0=None, 1=Left, 2=Right) //6 Wheel Radius (feet) //7 Steer Angle (degrees) //8 Static Compression (feet) (0 if rigid) //9 Max/Static Compression Ratio //10 Damping Ratio (0=Undamped, 1=Critically Damped) //11 Extension Time (seconds) //12 Retraction Time (seconds) //13 Sound Type //14 Airspeed limit for retraction (KIAS) //15 Airspeed that gear gets damage at (KIAS) I think there's an error in the main gear wheel radius setting (0.512). That entry is in ft. and it seems a little low, looking at the screenshot. Try changing that, but backup your aircraft.cfg first. Regards, DDP. Link to comment Share on other sites More sharing options...
Jay2 Posted March 10, 2020 Author Share Posted March 10, 2020 Problem solved. Thanks to all for your contributions, it all helped with fixing this problem. What I have found so far: 1) Download and read the “Aircraft Container SDK FS2004†is a must, especially the part on “Contact Pointsâ€. 2) There are two distinct categories in the Contact Point chart: * “Contact Points†(vertical column #) - this range is: 0 – 1 – 2 – 4 – 5 – with no # limit. The first three points represent: “Point.0=†the front wheel or the tail wheel, “Point.1=†the left front wheel, “Point.2=†the right front wheel. I do not know what the other points are for. * “Contact Elements†(horizontal row #) – this range is: 1 – 16, only. They establish what element is being adjusted, e.g. #4 “Vertical Position†or #7 “Wheel Radius (see SDK list). It is important to not confuse the two numbering systems of Points & Elements. The “Elements†from left to right: (as per the SDK) 1- Class 2- Longitudinal Position (feet) 3- Lateral Position (feet) 4- Vertical Position (feet) 5- Impact Damage Threshold (Feet Per Minute) 6- Brake Map (0=None, 1=Left, 2=Right) 7- Wheel Radius (feet) 8- Steer Angle (degrees) 9- Static Compression (feet) (0 if rigid) 10- Max/Static Compression Ratio 11- Damping Ratio (0=Undamped, 1=Critically Damped) 12- Extension Time (seconds) 13- Retraction Time (seconds) 14- Sound Type 15- Airspeed limit for retraction 16- Airspeed that gear gets damage Here is what it looks like in chart form: Jay Link to comment Share on other sites More sharing options...
CRJ_simpilot Posted March 11, 2020 Share Posted March 11, 2020 Glad you got it fixed and learned a few things in the process. Now if you have this issue again you'll know what to do. OOM errors? Read this. What the squawk? An awesome weather website with oodles of Info. and options. Wile E. Coyote would be impressed. Link to comment Share on other sites More sharing options...
Recommended Posts