There maybe BREAKING CHANGES to file structure for every update, please DELETE the old one each time when you install the new version.

It is quite a surprising fact that there are flights to Antarctica using ordinary airliner, so I tried to get the informations of airfields in Antarctica. In the recent version, there are 20 airfields have been added:

• Boulder Clay Runway (AQBC)
• Concordia (AT03)
• D85 Skiway (AT05)
• Fossil Bluff Skiway (AT10)
• Kohnen Station Skiway (AT12)
• Mid Point Skiway (AT14)
• Molodezhnaya (AT15)
• Neumayer Station Skiway (AT16)
• Novolazarevskaya (AT17)
• Odell Glacier (AT18)
• Sanae IV Skiway (AT22)
• Sky Blu (AT24)
• Troll (AT27/ENOE)+#
• Vostok Station Skiway (AT28)
• Halley Station Skiway (EGAH)
• Phoenix Field (NZFX)+#
• Union Glacier Runway (SCGC)
• Wolf's Fang Runway (AT98/WICE)+#
• O'Higgins Skiway (SCBO)*
• Wilkins Runway (YWKS)+#

Those airfields with (*) are built on sea ice. From the results of test flights, you can't start a flight from these airfields as aircraft will sink into water, or immediately end up in a crash. On the other hand, you must see that sea ice has been built up on the area for landing. As there are no reference about the landscape near the airfields, landing at night is dangerous especially during winter, where wind speed equivalent to a hurricane is usual.

Why there is no South Pole Station Airfield (NZSP)? The answer is not that straight forward. Most of the web mapping providers adapt the WGS 84/Pseudo-Mercator (EPSG:3857) as the projection standard, which the highest latitude supported is 85.05° north/south. Terrain beyond this latitude could not be rendered properly. In fact I've tried different methods to place the runway near the Geographic South Pole, but it failed to give anything meaningful, and only something erroneous as the result. However, I've placed a POI on it, so you can still try to fly there.

The snow groomers at the airports are from the Winter Asset Pack by Usatix, download this library here otherwise they will not spawn.

True bearings (sometimes Grid bearings) should be used for navigation, as magvar over the continent varies a lot even for a short distance, and the value could even be as much as 180 degrees if you're flying somewhere between the Magnetic South Pole and Geographic South Pole.

Among these airfields, Wilkins Runway (YWKS), Troll Airfield (AT27/ENOE) and Wolf's Fang Runway (AT98/WICE) have published RNAV Approach or SID, see the links below for charts:

YWKS:
https://www.airservicesaustralia.com/aip/aip.asp?pg=10 (Choose "Departure and Approach Procedures")

AT27/ENOE:
https://www.pansops.no/charting/ (2016 version by Norwegian Polar Institute)
https://www.youtube.com/watch?v=sb7MyT039AI (2023 version by Norse Atlantic Airways)

AT98/WICE:
https://wolfsfangrunway.com/media/uploads/info/71747-006-WFR_WFANG_1A_RWY_17T-Chart-V2.1.pdf
https://wolfsfangrunway.com/media/uploads/info/71747-003-WFR_RNP_RWY_17-Chart_V2.1.pdf

Instrument procedures for Phoenix Field

The instrument procedures for Phoenix Field are partly implemented, with thanks to an undisclosed player. 3 SIDs and only one STAR have been coded where the coordinates of all the associated waypoints are known or built-in. On the other hand, 3 instrument approaches for Runway 33 (TACAN/TLS/RNAV) and 2 for Runway 15 (TACAN/RNAV) have been coded, with some waypoints could be calculated with good precision. Those TACAN approaches have been coded as VOR approaches as there is not much non-military aircraft which can receive TACAN signals, while the TLS approach has been coded as Localizer approaches. From the results of test flights, the radio navaids works somehow erratic, which may caused by the very great local magvar of the area, or Grid headings have been applied as per documents. All the vertical glideslope of the approaches are -2.5 degrees except TLS and RNAV Runway 33 with the standard -3.0 degrees. For Runway 33 TACAN approach,  track VORTAC "ZFX" radial 322, while it is 151 for Runway 15 TACAN approach.

Helper NDBs

For airfields with jets operating on them but no published instrument approach is known, I've added some fictional "helper" NDBs to facilitate better navigation and approaches. (You can't imagine something bulky like VOR or ILS antenna to be installed on Antarctica) Here is the list (more will be added later):

• SCGC - "UGL" / 360kHz
• AT17 - "NV" / 280kHz
• AQBC - "BC" / 340Hz

Ground handlings

There are 4 airports (marked by #) with apron being explicitly defined, with parking bay assigned. Only Phoenix Field and Troll Airport have refuelling available.

I have also made the livery of Skytraders for A230neo, although they use A319 in real life.

There are BREAKING CHANGES to folder structure since version 1.2, please DELETE the following folders from your community mod foler if you have installed versions before 1.2:

• kychungdotcom-airport-scgc-unionglacier
• kychungdotcom-airport-at24-skyblu
• kychungdotcom-airport-egar-rothera
• kychungdotcom-airpost-scrm-teniente-r-marsh
• kychungdotcom-airport-at17-novo
• kychungdotcom-airport-sawb-marambio
• kychungdotcom-airport-ywks-wilkins
• kychungdotcom-airport-at27-troll

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