The Dassault Falcon 6X is a large, long-range business jet developed by Dassault Aviation in France. Its precursor, the Falcon 5X twinjet, was launched in 2013, rolled-out in 2015 and made its first flight on July 5, 2017, but its development was frozen as its Safran Silvercrest engine failed to meet performance objectives. In December 2017, the Falcon 6X was launched as a stretched version with PW812D turbofans, made its first flight on 10 March 2021, and entered service on 30 November 2023. It has the widest purpose-built business jet cabin at 2.58 m (102 in). Its 70.7 m2 (761 sq ft) wing allows a 35,135 kg (77,459 lb) maximum weight with 59.9 kN (13,460 lbf) engines, for a 5,500 nmi (10,200 km) range and a Mach 0.90 top speed. The Falcon 6X is largely based on the Falcon 5X aerodynamics and systems, validated during its preliminary flight test program, but it is optimized to take advantage of its 58–62 kN (13,000–14,000 lbf) PW812D engines for a longer cabin and a greater 5,500 nmi (10,200 km) range, a Mach 0.90 top speed and a Mach 0.85 cruise. Its cabin is 12.3 m (40 ft) long, is 1.98 m (78 in) high by 2.58 m (102 in) wide (the largest in a purpose-built business jet), and can accommodate 16 passengers in three zones with 29 windows, including a galley skylight. A front-fuselage extension makes its cabin 51 cm (20 in) longer.[30] The Falcon 6X reinforces the 5X new 70.7 m2 (761 sq ft) wing and keeps its digital flight control system and Honeywell Primus Epic EASy III flight deck. The new engine fans have a diameter of 110 cm (44 in), 15 cm (6 in) narrower than the Gulfstreams, with four low-pressure turbine stages instead of five, engine weight is reduced by 91 kg (200 lb). Its empty weight increases by 1,030 kg (2,270 lb) or 5.7%, from 18.1 to 19.2 t (40,000 to 42,300 lb), due to heavier engines, fuel system and structural reinforcements.[31] The Falcon 6X will be the first Dassault aircraft with a nitrogen inerting system.
