Dassault Falcon 6X
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If cabin comfort is your top priority, nothing can touch the new Falcon 6X. This aircraft has the largest cross-section of any current-production, purpose-built business aircraft, netting an 8-foot wide and 6-foot, 4-inch high interior, according to our tape measure. The cabin is also virtually the same length as either the Global 5500 or Gulfstream G500. Thirty windows, each the largest of any Falcon yet built, flood the three-section cabin with bright ambient light. The main seating area has the typical four-chair club section up front, a four- seat conference area and a credenza in mid-cabin, and aft stateroom. All floor plans include a forward galley, crew lav, and an aft main passenger lavatory. There’s even a skylight in the ceiling above the galley. The 10.2-psi pressurization system ensures cabin altitude never exceeds 6,000 feet. The Falcon 6X will likely cruise in the low forties, so actual cabin altitudes will range from 3,500 to 4,800 feet. Dassault also has made sizable reductions in cabin sound levels in recent years. The goal is to beat Gulfstream for quietest cabin honors. Plan on mid-40 dBA interior noise levels when this aircraft enters service later this year. The Falcon 6X also vies for having the most advanced aviation technologies. Borrowing heavily from Dassault’s Mach 2 class Rafale strike fighter, the firm pioneered fly-by-wire flight controls in business aircraft with the Falcon 7X in 2007, and has been enhancing its digital flight control systems ever since. This makes the Falcon 6X feel as agile as the Falcon 10, based on our experience flying it. Even more important to both pilots and passengers, there are dozens of subtle enhancements that reduce flight-crew
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workload, improve situational awareness, and make the aircraft one of the safest ever designed. Note to pilots: This aircraft consistently touches down on the pavement as though it’s nestling into a feather bed. The tradeoff for the Falcon 6X’s class-leading cabin comfort is comparatively modest performance. The Falcon 6X is a redux of the ill-fated Falcon 5X that was doomed by the development failure of its planned Snecma Silvercrest turbofan engines. When Dassault halted the Falcon 5X program, it elected to re-engine the Falcon 5X with well-proven Pratt & Whitney PW800-series engines while stretching the fuselage and adding fuel capacity. But the wing area remains the same while weight increases by nearly four tons. This results in the highest wing loading of any large-cabin business jet. That doesn’t help high-altitude climb and cruise performance. The Falcon 5X also was designed when large-cabin business aircraft mostly flew at Mach 0.80, so Dassault mapped out the wing shape and sweep accordingly. At that speed, the Falcon 6X has a 5,500-nm maximum range. Push up the speed to Mach 0.85, and its range drops to 5,100 nm. Cruising at Mach 0.80, the Falcon 6X’s fuel efficiency is better than the Global 5500’s, but not as economical as the G500. Cruising at Mach 0.85, the Falcon 6X’s fuel consumption is on par with the Global 5500. Wing loading also has an impact on runway performance. While the Falcon 6X has one of the best high-lift systems, high wing loading results in the longest takeoff field lengths among direct competitors.
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