Paris Air Show gets underway

A man looks out of the door of a Embraer E195-E2 prototype, developed by Brazilian aerospace company Embraer, at Paris Air Show, on the eve of its opening, in Le Bourget, east of Paris, France, Sunday, June 18, 2017. While Airbus and Boeing will again hog the spotlight at the Paris Air Show with their battle for ever-larger slices of the lucrative pie in the sky, a lot of the really interesting stuff will be going on elsewhere at next week's massive biennial aviation and defense industry gathering. [Photo: AP/Michel Euler]

U.S. servicemen gather next to a F-35 Lightning II at Paris Air Show, on the eve of its opening, in Le Bourget, east of Paris, France, Sunday, June 18, 2017. While Airbus and Boeing will again hog the spotlight at the Paris Air Show with their battle for ever-larger slices of the lucrative pie in the sky, a lot of the really interesting stuff will be going on elsewhere at next week's massive biennial aviation and defense industry gathering. [Photo: AP/Michel Euler]

A man walks past with his bicycle a Japan maritime self-defense forces P-1 submarine-hunting aircraft, at Paris Air Show, on the eve of its opening, in Le Bourget, east of Paris, France, Sunday, June 18, 2017. While Airbus and Boeing will again hog the spotlight at the Paris Air Show with their battle for ever-larger slices of the lucrative pie in the sky, a lot of the really interesting stuff will be going on elsewhere at next week's massive biennial aviation and defense industry gathering. [Photo: AP/Michel Euler]

Employees take off a protection sheet at Paris Air Show, on the eve of its opening, in Le Bourget, east of Paris, France, Sunday, June 18, 2017. While Airbus and Boeing will again hog the spotlight at the Paris Air Show with their battle for ever-larger slices of the lucrative pie in the sky, a lot of the really interesting stuff will be going on elsewhere at next week's massive biennial aviation and defense industry gathering. [Photo: AP/Michel Euler]

People look at a Wing Loong II drones, a Chinese made medium-altitude long-endurance unmanned aerial vehicle, at Paris Air Show, on the eve of its opening, in Le Bourget, east of Paris, France, Sunday, June 18, 2017. While Airbus and Boeing will again hog the spotlight at the Paris Air Show with their battle for ever-larger slices of the lucrative pie in the sky, a lot of the really interesting stuff will be going on elsewhere at next week's massive biennial aviation and defense industry gathering. [Photo: AP/Michel Euler]

A man take a photo of a Falcon 8x model at Paris Air Show, on the eve of its opening, in Le Bourget, east of Paris, France, Sunday, June 18, 2017. While Airbus and Boeing will again hog the spotlight at the Paris Air Show with their battle for ever-larger slices of the lucrative pie in the sky, a lot of the really interesting stuff will be going on elsewhere at next week's massive biennial aviation and defense industry gathering. [Photo: AP/Michel Euler]