I’m guessing it’s a short flight. They’re flying direct from the origin to the waypoint, then direct to destination. I could be wrong - I’m sure someone will scold me if I am…
I always have the Lat/long ready for K22 as our destination,but last week the FSS guy told me that was no longer necessary. the computer does it automatically.
Probabaly a Locheed Martin twist!
The FSS inserted the lat/longs becuase HNB may or may NOT be known to the Cleveland Center computer. If it doesn’t know HNB, and you file SKY…HNB, you’ll get XXX in the flight plan, and the computer will give up and create extra work load to find out where the aircraft is going.
If the lat/longs are inserted into the flight plan, the computer can figure out ANY coordinate using internal math from know locations. On the strip/screen, the flight plan would be SKY…(lat/long)…HNB. There would then be a remark added that says “(lat/long) is HNB”. The computer will at least draw a straight line so everyone has a clue as to where the aircraft is going.
If the flight originated in Indy center, the coordinates would not be necessary due to the computer knowing all of the fixes inside its own airspace. This is why the AIM recommends that you file a route that includes a fix within each center’s airspace.