Confusing Coordinates for TACAN between WDP and BMS docu.
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If I use WDP coordinates the TACAN Pos. is exactly at the end of RWY 26
BMS the TACAN Pos is right side at the end of RWY 26.
I think it is more practical and more real with distance from RWY is it ?
I miss also exactly coordinations for the RWY within BMS.
If I check the RWY position with Google earth it is different.
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if you read the chart tutorial, you will learn that the coordinates given on the charts are the coordinates of the ARP (Airport reference point)
That is the tower when it exists in the recon screen of if the tower is not visible in the recon view, the middle section of the runway.So it’s by design that it is NOT the tacan coordinates which by the way when generic is not even modelled but placed by code at the centre of the airbase objective.
Google map will not help at all because real world and BMS coordinates do not match because of the projection.
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The center of the airbase objective or the center of the airbase objective tile?
U can move the objective in the tile but still the tacan will be at the center of the tile.Στάλθηκε από το MI 5 μου χρησιμοποιώντας Tapatalk
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Hello there.
If I got it right by your title post “Confusing Coordinates for TACAN between WDP and BMS docu”, you want to know the GPS coordinates of the TACAN station per airport, as also its position.
IF this is the case, then you must know that the default GPS coordinates and position of the TACAN station at an airport is the STPT1 (Steerpoint 1).
When I say “default” I mean that this airport has no extra placed NavAid (TACAN or VORTAC or VOR/DME).
In order to verify this and get your infos, simply go to the desired airport (example Kangnung at Korea theater), make a T.E. flight and go into 3D cockpit.
Insert the correct TACAN channel (for Kangnung is 056X) and leave/set the STPT1 as current. Then check at your HSI to see if the bearing pointer and DME distance (MILES) are exactly the same. THEN you are sure that the STPT1 (Steerpoint 1) is the position of the TACAN station at this airport.
Checking HSI
See below its GPS coordinates via DED
as also its exact position at the airport (It isn’t mandatory to see a 3D object of the NavAid at its place. Depends of the team creation.)
Now if you see at the HSI that the TACAN (TCN) and Steerpoint 1 (NAV) are not exactly the same, means that there is placed an extra NavAid. You can get its GPS coordinates by using the Mission Commander program, go to the desired airport, click on it, then click on “View Features” and then tick “Show all features”.
Last scroll down until to see for name of the objective the type of NavAid (TACAN or VORTAC or VOR/DME) and side to it you can read its GPS coordinates.Nikos.
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Thanks for your nice explanation,
I know that already, but I found an difference between the BMS Tacan and the Tacan coordinates from WDP. The WDP Tacan coordinates put the Position exactly at the End of RWY 26Put the WDP coordinates into the DED and check the Position with HSI and then do the some with BMS GPS coordinates.
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Cat 3 approach without ILS is not possible if the RWY coordinates are of the centerline.
Now I enter the coordinates from the MC Object Features, pointing the courser at the end of the RWY and put the coordinates into the DED Destination and it work fine. -
Cat 3 approach without ILS is not possible if the RWY coordinates are of the centerline.
CAT III is not allowed nor “possible” (requirements) on an F-16 anyway.
Now I enter the coordinates from the MC Object Features, pointing the courser at the end of the RWY and put the coordinates into the DED Destination and it work fine.
Because it is a sim … IRL you would not do this because 1 - this is forbidden 2 - you don’t want to die.
The only case a pilot would maybe try that is as an ultimate solution if no more possible diversion and no other mean to land on a bad weather situation. In that kind of extreme case, maybe a planned/controlled ejection would be smarter depending on actual runway environments.