Bob Denny Posted March 12, 2016 Share Posted March 12, 2016 I just spent the whole morning trying to figure this out, and I finally came here to post this question... then I found this great IFR/ILS mission BATUMI IFR / ILS Landing A-10C which is what I have been working on independently (I had no idea this other mission existed until 10 min ago ugh). My issue is with the inbound course of the localizer. Everything, including the Mission Editor (attached) and the Georgian Air Navigation (Sakaeronavigatsia Ltd.) plates (also attached) all show the localizer inbound course at 126 degrees magnetic. Note that using the ruler tool in the Mission Editor also shows 126 magnetic. I verified that the ruler tool shows magnetic by lining it up with the lat/long grid and it shows 355 degrees. Right, magnetic. However JorgeIII (as well as me) have discovered that the course in the A-10C is 119 degrees magnetic, and sitting aligned with the runway shows 300 deg (close enough). When you're at the FAP, the airport is indeed at a bearing of 119, both visually and via an EGI steerpoint if you put one at the touchdown zone. How can this be? Link to comment Share on other sites More sharing options...
Bob Denny Posted March 12, 2016 Author Share Posted March 12, 2016 And I found this where the confusion goes back years: http://forums.eagle.ru/showthread.php?p=1068563 -------------- snip --------------- ILS Training mission The real Batumi runway 13 is 130.89° true (AIP, Mar 2010) thus 126°? magnetic (given 5°E var). In-game I get a 119.8° magnetic readout on HARS which suggests 125.3° true (DCS says 5.5°E for that location). And yet the angular relationship between the lines of longitude in the ME and the runway edge is 131.3° so... a serious "angle audit" is in order. In DCS:BS the map rotated as you moved it so that true north was always straight up for the center of the ME screen. In WH it doesn't seem to be so (yet.) At least in FAA rules the naming of the runway and the actual magnetic heading can differ by 15° so a 056 named runway 7 is technically fine. Also notice that the CRS knob setting that results in a course to the runway when centered on the localizer and the setting that results in a 0 bank command again when centered on the LOC are different... again by about 5-6°. Link to comment Share on other sites More sharing options...
feefifofum Posted March 13, 2016 Share Posted March 13, 2016 I had often wondered about those few oddball runways. Lots of great insight here, thanks BobDenny! Incidentally Kobuleti is a great runway to practice IFR with if you're looking for an alternative. THE GEORGIAN WAR - OFFICIAL F-15C DLC Link to comment Share on other sites More sharing options...
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