I think that Efzed//Frank Zimmerman, which makes a game called Airline (most recently Airline 7), may be trying to confuse potential users of the Airline Project. Like The Airline Project, Airline is a game about running an airline. After pulling their Airline 7 site last year, their domain now has a single page stating that their next version of their airline game that is coming soon, which they are calling "airlinesimulation project," which clearly a very similar naming to The Airline Project. If you think that's just a coincidence, Efzed/Frank Zimmerman was previously found guilty of reverse domain hijacking of an another game about running an airline.