Falcon 10X test fleet grows to two aircraft

Dassault now has two Falcon 10X prototypes flying, with aircraft serial number two making its first flight from Mérignac on September 24.

• Second Falcon 10X prototype first flew on September 24, 2026
• Dassault confirmed the two-aircraft flight-test fleet on October 7
• The Falcon 10X is Dassault’s largest and longest-range business jet program
• The added aircraft should increase the pace of certification testing

Dassault Aviation has moved the Falcon 10X program into a busier test phase, confirming that a second prototype is now flying. The aircraft, serial number two, lifted off from Mérignac, France, on September 24.

The key number is simple: two 10X prototypes are now in the air. That matters because flight-test fleets build hours faster when more than one aircraft can split the work across systems, handling, performance and reliability checks.

For buyers watching the top end of the private jet market, the 10X is Dassault’s answer to the biggest long-range cabins from Gulfstream and Bombardier. A second flying aircraft does not mean deliveries are imminent, but it is a concrete step from design promise toward certification reality.