Shane45 Posted October 7, 2014 Posted October 7, 2014 Hi Guys, When coming into Batumi from the sea, the runway is 13 therefore you would set your HSI to 130 , Correct ? if so then why do I get a heading of 120 in the Mapleflag missions and end up having to crab my way onto the runway, at night / low vis etc if you are flying by instruments , ILS / Tacan if you set the HSI to 120 and followed it in I very much doubt you'd be on the runway, Or am I talking out of my bottom. cheers
Suchacz Posted October 7, 2014 Posted October 7, 2014 As far as I remember, if you are landing from the sea, the runway number is 12 and heading 127deg. Im too lazy to search now for proper data, but you can refer VAD charts in "DCS World/Doc" folder Per aspera ad astra! Crucial reading about DCS: Black Shark - Black Shark and Coaxial Rotor Aerodynamics, Black Shark and the Trimmer, Black Shark – Autopilot: Part 1, Black Shark – Autopilot: Part 2
jcbak Posted October 7, 2014 Posted October 7, 2014 It is runway 13. I believe the heading is 125 or 127..... [sIGPIC][/sIGPIC]WIN 10, i7 10700, 32GB DDR4, RTX 2080 Super, Crucial 1TB SSD, Samsung EVO 850 500GB SSD, TM Warthog with 10cm extension, TIR5, MFG Crosswind Pedals, Wheelstand Pro, LG 40" 4K TV, Razer Black Widow Ultimate KB[/size]
cichlidfan Posted October 7, 2014 Posted October 7, 2014 The reason is that there is a bug with some air fields. It has been like that since forever. ASUS ROG Maximus VIII Hero, i7-6700K, Noctua NH-D14 Cooler, Crucial 32GB DDR4 2133, Samsung 950 Pro NVMe 256GB, Samsung EVO 250GB & 500GB SSD, 2TB Caviar Black, Zotac GTX 1080 AMP! Extreme 8GB, Corsair HX1000i, Phillips BDM4065UC 40" 4k monitor, VX2258 TouchScreen, TIR 5 w/ProClip, TM Warthog, VKB Gladiator Pro, Saitek X56, et. al., MFG Crosswind Pedals #1199, VolairSim Pit, Rift CV1 :thumbup:
GripenNG Posted October 7, 2014 Posted October 7, 2014 The reason is that there is a bug with some air fields. It has been like that since forever. I don´t know about the bug...but the magnetic variation is as present in DCS as in the real world. Recent polar magnetic changes IRL have forced some airfields to change their runway numbers in some areas of the world as well. Batumi runway is 13 (120,8 degrees true magnetic heading) adding a magnetic variation of 6,0 gives it a value of 126,8 - which rounds of to RWY 13. EDIT: Batumi have numbers 13 in real too. [sIGPIC][/sIGPIC] Snooze-81st-vFS
cichlidfan Posted October 7, 2014 Posted October 7, 2014 For reference, did not have time to find it earlier. To make a very, very long story relatively short, the majority of airbases in DCS are incorrectly modeled/placed insofar as their geographical locations are concerned. As a consequence great discrepancies exist insofar as True Headings/Magnetic Headings and calculations regarding magnetic declination are concerned. It is this error which then also filters down to the CDU. Best course of advice is to rely solely on the fictitious DCS Airbase approach charts as provided in the Docs folder for ILS navigation. And no, problem is not solvable at this stage. Workaround is the custom charts as stated above. ASUS ROG Maximus VIII Hero, i7-6700K, Noctua NH-D14 Cooler, Crucial 32GB DDR4 2133, Samsung 950 Pro NVMe 256GB, Samsung EVO 250GB & 500GB SSD, 2TB Caviar Black, Zotac GTX 1080 AMP! Extreme 8GB, Corsair HX1000i, Phillips BDM4065UC 40" 4k monitor, VX2258 TouchScreen, TIR 5 w/ProClip, TM Warthog, VKB Gladiator Pro, Saitek X56, et. al., MFG Crosswind Pedals #1199, VolairSim Pit, Rift CV1 :thumbup:
Shane45 Posted October 7, 2014 Author Posted October 7, 2014 Rgr All guys many thanks for the replies, I was thinking it's more like 125, 120 is off to the left and 130 is off to the right, however in Mapleflag if I go off heading ie 120 , i get the terminate, terminate terminate, which is a bit of a pisser, anyway, practice , practice , practice,
Archer7 Posted October 7, 2014 Posted October 7, 2014 Isn't Batumi 119? But it rounds to 13 because god damn it.
effte Posted October 7, 2014 Posted October 7, 2014 In the real world, Batumi RWY13 it is 126°M (magnetic), 131°T (true). In DCS, for the aforementioned reason... it's whatever. According to the charts provided with DCS World 120°M and 126°T, so the variation is off by a degree as well. The WMM of 2010, which should be good up to 2015, is included with the installation but either the coords are off enough to affect the variation, they're not applying the predictive terms or the calcs are just plain off. The latter is unlikely, as the math and method are provided with the model. Cheers, /Fred ----- Introduction to UTM/MGRS - Trying to get your head around what trim is, how it works and how to use it? - DCS helos vs the real world.
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