This confuses me. Is Australia an exception to this then?
I assumed that ONLY the links with "long distance" indicators require a "long distance" aircraft. Otherwise players can choose to take RISK to go as far as they wish when they place Airport tiles.
Nope. Page 4:
Occasionally, you may build in a destination two connections away by
using a long-distance aeroplane
In addition to its use on long-distance routes
indicated on the map, a long-distance aeroplane
allows you to “skip over” a destination on a
connection to establish a new airport farther away
I think it's fairly clear you can only use a long distance airplane to skip destinations.