orbiter28 Posted February 23, 2020 Share Posted February 23, 2020 (edited) Edit : It is not a bug, but a feature ;) Bug: The map with the Shift K are not correct. Can I reproduce it 100%: yes, % How to reproduce/ description: Press Shift + K, look at airport. You can read batumi airport runway 30 is aligned with 299°. Go to the dcs chart folder, you can read batumi is at 305°. Use TACAN aproach, it confirm batumi is at 305°. They are some airport like this, not only batumi. DCS Version: OpenBeta 2.5.6.XXX Video/ Screenshots: DCS chart for batumi, see runway 30 for example : Inboard F-14 map : Edited February 23, 2020 by orbiter28 Link to comment Share on other sites More sharing options...
Ramsay Posted February 23, 2020 Share Posted February 23, 2020 Press Shift + K, look at airport. You can read batumi airport runway 30 is aligned with 299°. This is the Magnetic heading. IRL aeronautic charts are usually marked with respect to magnetic north. Many DCS charts list RWY 30 as 300°M but DCS tends to round numbers down, so 299° is more likely to be the cockpit value i.e. 306°T - 6.1°MV = 299.9°M = 299°M when rounded down. Go to the dcs chart folder, you can read batumi is at 305°. This is the True heading in DCS and as measured on the F10 map, MagVar = ~6° Use TACAN aproach, it confirm batumi is at 305°. The F-14B is the only module to model the effect of flying East-West (crossing the earth's magnetic field) on the magnetic flux valve (Magnetic Azimuth Detector - MAD), this throws the HSI "off" and you often end up flying with an offset HSI heading as if compensating for a crosswind. https://forums.eagle.ru/showthread.php?p=3912833#post3912833 This is likely why you think Batumi's TACAN approach is 305°M i9 9900K @4.9GHz, 64GB DDR4, RTX4070 12GB, 1+2TB NVMe, 6+4TB HD, 4+1TB SSD, Winwing Orion 2 F-15EX Throttle + F-16EX Stick, TPR Pedals, TIR5, Win 10 Pro x64, 1920X1080 Link to comment Share on other sites More sharing options...
orbiter28 Posted February 23, 2020 Author Share Posted February 23, 2020 (edited) Ok, i try with kobulety. I read 64° on the F-14 inboard map, and 64° in the dcs map. I should be on 58° for have a well working tacan. So i remove 6 for east, and add 6 for west... Thank. Edited February 23, 2020 by orbiter28 Link to comment Share on other sites More sharing options...
Ramsay Posted February 23, 2020 Share Posted February 23, 2020 (edited) Ok, i try with kobulety. I read 64° on the F-14 inboard map, and 64° in the dcs map. 64°M is the correct magnetic heading i.e. the bearing you would fly in the A-10C, Hornet, etc. I should be on 58° for have a well working tacan. In DCS, Kobuleti RWY 07 = 70° True, 64° Magnetic The F-14B TACAN course setting should be 64° as you'll be flying the 64°M radial. The HSI may have error due to flying East-West ... • approaching a carrier West-East it's approx. -10° • approaching Kobuleti RWY 07 in 2.5.6.43931 - I only see a small 1-2° HSI error this is likely intended, as HB have modelled the magnetic effect of the carrier and a number of other sources of error. Batumi appears to be similar So i remove 6 for east, and add 6 for west... Yes, though + = East and - = West (1) MagVar = True - Magnetic = 70°T - 64°M = E +6° you subtract MagVar from true to get Magnetic, so (2) Magnetic = True - MagVar = True - (+6°) = 70°T - 6° = 64°M Edited February 24, 2020 by Ramsay Test F-14B TACAN/HSI, Kobuleti and add Batumi picture i9 9900K @4.9GHz, 64GB DDR4, RTX4070 12GB, 1+2TB NVMe, 6+4TB HD, 4+1TB SSD, Winwing Orion 2 F-15EX Throttle + F-16EX Stick, TPR Pedals, TIR5, Win 10 Pro x64, 1920X1080 Link to comment Share on other sites More sharing options...
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