Which ATC station should I contact?
(video coming VERY soon!)
It’s not that hard to determine which ATC station you should contact. You should see it all as an inverted pyramid with Delivery at the bottom and Radar at the top. When one layer (one station) of the pyramid is not online, the station above that layer will take over their duties. So Approach will also do Delivery, Ground and Tower when those three stations are not online. Therefore you should contact Approach to get your flight plan clearance when only Approach is online. If you are in doubt whether a controller is providing ATC at your airport, just ask via a private message. More in the video above!