Visitors looks at the flying car Pegasus 1, built by French entrepreneur Jerome Dauffy at Paris Air Show, in Le Bourget, east of Paris, France, Tuesday, June 20, 2017. Aviation professionals and spectators are expected at this week's Paris Air Show, coming in, in a thousands from around the world to make business deals. (Photo by Michel Euler/AP Photo)





A Dassault Rafale fighter takes part to a flying display at the 52nd Paris Air Show at Le Bourget Airport near Paris on June 22, 2017. (Photo by Pascal Rossignol/Reuters)





An Airbus A380 flies over an Embraer E190-E2 during a flying display at the 52nd Paris Air Show in Le Bourget Airport near Paris on June 23, 2017. (Photo by Pascal Rossignol/Reuters)





An aerial view of the 52nd Paris Air Show at Le Bourget Airport near Paris on June 21, 2017. (Photo by Pascal Rossignol/Reuters)





A Qatar Airways crew member presents the business class seats of a Boeing 777 aircraft during the 52nd Paris Air Show at Le Bourget airport near Paris on June 19, 2017. (Photo by Pascal Rossignol/Reuters)





A Embraer KC-390, a medium-size, twin-engine jet-powered military transport aircraft is seen through the door of a NH90 helicopter at the 52nd Paris Air Show at Le Bourget Airport near Paris on June 20, 2017. (Photo by Pascal Rossignol/Reuters)





A Lockheed Martin F-35A Lightning II aircraft takes part in a flying display at the start of the 52nd Paris Air Show at Le Bourget Airport near Paris on June 20, 2017. (Photo by Pascal Rossignol/Reuters)





An Airbus A350-1000 XWB flies during a display on the first day of the 52nd Paris Air Show at Le Bourget airport near Paris on June 19, 2017. (Photo by Pascal Rossignol/Reuters)





UAV “AW HERO” made by Leonardo is seen before Paris Air Show at Le Bourget Airport near Paris on June 17, 2017. (Photo by Pascal Rossignol/Reuters)





Chinese UAV Wing Loong II is seen on the static display during the 52nd Paris Air Show at Le Bourget Airport near Paris on June 20, 2017. (Photo by Pascal Rossignol/Reuters)





An Embraer KC-390, a medium-size, twin-engine jet-powered military transport aircraft is parked before a flying display at the 52nd Paris Air Show at Le Bourget Airport near Paris on June 18, 2017. (Photo by Pascal Rossignol/Reuters)





People look at an Airbus A380 as it takes part in flying display during the 52nd Paris Air Show at Le Bourget Airport near Paris on June 22, 2017. (Photo by Pascal Rossignol/Reuters)





A Boeing 737 Max takes part in flying display at the 52nd Paris Air Show at Le Bourget Airport near Paris on June 20, 2017. (Photo by Pascal Rossignol/Reuters)





An Airbus A400M aircraft flies during a display on the first day of the 52nd Paris Air Show at Le Bourget airport near Paris on June 19, 2017. (Photo by Pascal Rossignol/Reuters)





A Dassault Rafale fighter aircraft takes part in a flying display on the first day of the 52nd Paris Air Show at Le Bourget airport near Paris on June 19, 2017. (Photo by Pascal Rossignol/Reuters)





An aerial view of an Airbus A380 during the 52nd Paris Air Show at Le Bourget airport near Paris on June 21, 2017. (Photo by Pascal Rossignol/Reuters)





A Leonardo M-346FA fighter attack aircraft is seen on static display during the first day of the 52nd Paris Air Show at Le Bourget airport near Paris on June 19, 2017. (Photo by Pascal Rossignol/Reuters)





A Lightning 162 fighter participates in a flying display two days before the opening of the 52nd Paris Air Show at Le Bourget airport near Paris on June 17, 2017. (Photo by Pascal Rossignol/Reuters)





Maziar Farzam, President of Inhance Digital, demonstrates virtual reality glasses which provide digital information about the Boeing 787-10 aircraft, during the opening of the 52nd Paris Air Show at Le Bourget Airport, near Paris on June 19, 2017. (Photo by Pascal Rossignol/Reuters)





A U.S. airman adjusts his cap in the cockpit as a Lockheed Martin F-35 Lightning II aircraft is moved on the eve of Paris Air Show at Le Bourget, Paris on June 18, 2017. (Photo by Pascal Rossignol/Reuters)





A Dassault Rafale fighter participates in a flying display two days before the opening of the 52nd Paris Air Show at Le Bourget airport near Paris on June 17, 2017. (Photo by Pascal Rossignol/Reuters)