Dassault Falcon 5X

The 5X is the newest and largest Falcon, with a top speed of Mach 0.90 and range of 5,200 nm. Credit: Dassault Aviation

At 78 in. high and 86 in. wide, the 5X cabin is the largest of the Falcon family. Credit: Dassault Aviation

The Falcon 5X is also a couple of inches wider and taller than Gulfstream's G650. Credit: Dassault Aviation

The wings are assembled at Dassault's Martignas plant. Dassault has five wing jigs dedicated to the 5X. Credit: Dassault Aviation

There are 10,000 holes on a Falcon 5X wing set. Credit: Dassault Aviation

The first Falcon 5X received its wings at Dassault's Bordeaux-Merignac plant in July 2014. Credit: Dassault Aviation

Ground testing is underway at the Bordeaux-Merignac plant. Credit: Dassault Aviation

Pilots are conducting simulation flights at Dassault's test bench in Saint-Cloud. Credit: Dassault Aviation

The 5X flight-test campaign will consist of 1,500 flight hours over 500 flights in 20 months. First flight is expected during the second quarter of 2015. Credit: Dassault Aviation

Three test airplanes will be used during the flight test campaign. Tests on the first aircraft include flight-envelope openings, digital flight controls, engines and systems. The second aircraft will be used for extreme test campaigns. The third will be used for entry-into-service preparation including interiors, satcom and cabin management systems. Credit: Dassault Aviation