It is the lore of the Nav-Leagues that has mapped out the troposphere of the Realm of Chamon and sections of the realm’s stratosphere. Their members study the elements, especially the winds and shifting atmospheric energies. Their ability to read wind currents and their carthogaphic knowledge makes them prized guides for any sky-fleet wanting to follow along aerial trade routes. During such voyages, Aetheric-Navigators seek to catch thermals and avoid the many perils of the airways. In order to become to become an Aetheric Navigator and join the local Nav-League, one must pass the entrance exams of a Navcademy. In order to have faint chance at accomplishing that, a duardin needs to be able to easily solve complex mathematical formulas under great duress. Yet no matter how rigorous the requirements and the training that follows, it is nothing compared to hanging onto the deck rails while trying to calculate the shifting currents of the Strahlstrom.