Originally Posted by
Flying Wild
You need dual HF for T13/16, one HF for T9/213
You are given a VHF freq by Santa Maria to monitor with about 120 miles to run southbound to NAVIX, and when giving a position report Northbound on transfer to Shanwick, are given a VHF Freq to call Shannon 5 mins before OMOKO.
Just one HF is fine for T13/16 but dual long range nav systems required.
To add to the mix the southern element of T13/16 (60 - 100 miles into north of entry/exit points) is radar controlled by Santa Maria for a couple of years now and they'll issue a squawk code, tell you to monitor the VHF and then they'll call you and issue climbs/descents once they've identified you while still in the oceanic airspace. Northbound you only need to monitor HF once approaching limit of radar service when they tell you the frequencies on VHF, so T13/16 are most certainly using VHF, and much more so than the northern elements of all T routes which typically just do initial position report on VHF.