Gangwon TACAN range
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Hiya,
yesterday while flying R-267 from Gangwon (KAE, 103X), all members of my flight lost contact with the station at around 26 Nm. We were all flying at around FL300, so I’m assuming that terrain masking wasn’t a factor. The station range is given in the KTO AIP at 140 Nm. Was there anything we did wrong or is there an underlying issue?
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it’s indeed an enroute station and I checked the stations.dat file and all is nominal.
There is high terrain very close to the station on the western side, (you can see it in recon view looking from the east at the Vortac)
As you get further away from the station, the angle flattens and the mountain probably get in the wayso your issue is a LOS issue due to that mountain. Ideally, the station should be placed on top of that mountain. It was reported before.
So it’s not you doing anything wrong -
please see the post it mentioned, https://www.benchmarksims.org/forum/showthread.php?26176-Gangwon-VORTAC-range-is-short
LOS problem i concluded because the VORTAC is slightly located on the east side of the mountain peak -
Thanks guys.