TH-73A Thrasher Course Rules Practice Test

The key idea here is how arrivals use named navigation fixes to guide you from the enroute airspace into the approach. The Vertol Arrival is published with a specific sequence of fixes that you cross to join the approach path. On this particular arrival, the path starts at Vertol and then proceeds to Bell, so those two fixes define the route you’ll follow to transition to the approach.

Other fixes like Bravo, Charlie, or Delta are not part of this arrival’s published sequence, so they aren’t included in the Vertol Arrival. They belong to different procedures or routes, not this one.

So, Vertol and Bell are the points you’ll cross on the Vertol Arrival, which is why that option is correct.