Trimeresurus wrote:If there's no transponder radar coverage over Atlantic and other oceanic zones, how can we see the aircraft passing through via websites like flightradar24?
Trimeresurus wrote:And are ATC services provided over the ocean?
Trimeresurus wrote:What happens if there are two aircraft coming from two opposite directions on the same airway, right at each other? Is it just that they rely on the very big chance that wind and established routes etc wouldn't allow such a scenario?
Woodreau wrote:I’m not sure how CPDLC works/ if the text messages are going directly between the flight crew and the ATC controller
But when doing it via voice on HF. The controllers and flight crews aren’t talking directly with each other. Instead there is an intermediary ARINC radio operator that relays messages between the flight crews and ATC.
So if you need a weather deviation. You call the radio operator. The operator calls ATC. ATC approves the deviation. the operator calls you and then you get to deviate. At least that’s how it works in WATRS. Don’t know if NAT is similar.
GalaxyFlyer wrote:Prior to 1966, there was a Prestwick and Shannon control centers with respective aeradio stations. To consolidate the two, the UK and Ireland ATC, created Shanwick—Shannon getting the Flight Services and Prestwick the traffic control portion. When you called “Shanwick Radio, NW xxx, position”; your position was sent to a radio operator on HF who electronically sent it on to Prestwick OAC.
If there's no transponder radar coverage over Atlantic and other oceanic zones, how can we see the aircraft passing through via websites like flightradar24? Is it all satellite?
And are ATC services provided over the ocean?
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