The only firm requirement is that the color set for the cover includes some blue and that the UAA logo (image uploaded) appears on the cover somewhere that does not detract from the Journal name and design. Since UAA is the overarching organization, it should be on the cover, but relatively small. This cover is for an academic aviation research journal.
The focus of the new journal name is a global focus so something with airplanes, airports, and/or towers would be great. Something that depicts "international" would be great also, maybe flags of various countries or something. Consider aspects of aviation other than just airplanes (e.g. helicopters, UAVs, mechanics, airports, etc).
The journal is an electronic journal with print options. The cover should support a standard 8.5" x 11" manuscript. Front and back cover page is requested with the majority of effort put on the front cover.