Engineer Lekon:
Airship, eh? If you want board an Airship, you need to first register for a Summon License. There's a switch on the Airship controls that proves your qualifications to summon and pilot it. Unless you obtain that license, you won't be allowed to fly.
Only clan lords whose clan is level 5 or higher may earn the license. There is also a limit on the number of Airships.
If you meet the requirements, you can obtain a Airship Summon License in exchange for 10 Energy Star Stones.
An Energy Star Stone can be made by assembling Star Stones found floating in the skies over Gracia. If you thinkk this is too time-consuming, you can also buy them from Officer Tolonis right over there..
Obtain the Airship Summon License.