I would guess it to be pretty rare that multiple aircraft would be on approach at once, and if so, I'd imagine one could hold at a distance to allow approaches to be serialized.
I've flown to/from McMurdo on a total of 4 types of planes... C-17, C130 (kiwi AF), L-100 (Safari, contracted by Italian antarctic program) and LC-130 (to/from pole).
There are a few other airports that have this, and my understanding is that only one aircraft can do the approach at a time. If another plane tunes in the ILS they will see the localizer and glideslope indications for the other plane.
I’m not sure how the TLS figures out what transponder to look at, I guess either the controller enters in the code of the plane on approach or there’s some reserved transponder code for the approach.
Exactly. I could see a 'convoy' of aircraft for a resupply, but I also expect even that might be just a few a day (because of weather and such, to avoid excessive aborts or returns due to weather or unloading delays).
https://www.usap.gov/sciencesupport/scienceplanningsummaries...
I would guess it to be pretty rare that multiple aircraft would be on approach at once, and if so, I'd imagine one could hold at a distance to allow approaches to be serialized.