John Travolta opens up about controversial hobby: 'All of my celebrity/artist friends know'

John Travolta opens up about controversial hobby: 'All of my celebrity/artist friends know'

Actor John Travolta has a penchant, bordering on obsession, for planes and flying. However, unlike most celebrities known for heavy usage of private jets, Travolta has an immense amount of passion for and significant professional investment in aviation.  From his recently listed $10 million fly-up mansion on the grounds of Jumbolair Aviation and Equestrian Estates to the rigorous commercial airline training he detailed in a recent interview with…