No one has really experienced an ultrawide-body business jet yet, but that opportunity has just gotten a lot closer. Dassault Aviation’s Falcon 6X has completed its critical design review, meaning the plans are set and manufacturing can begin.

Gone will be the narrow tube many jet-setters are used to traveling in. Instead, the cabin will stretch 8.5 feet across and have 6.5 feet of headroom, so even tall fliers can comfortably move about. Natural light will infuse the interior via 30 huge windows and a galley skylight—the first in business aviation.

Touted as the largest cross-section of any purpose-built business jet, the cabin measures 8 feet 6 inches wide and 40 feet 4 inches long, with 155 cubic feet of baggage space. The 6X will seat 16 passengers in three lounge areas, allowing for all kinds of configurations, such as a large entryway, crew rest area and a spacious rear lounge.

The aircraft will reach a maximum speed of Mach 0.90 and have a range of 5,500 nautical miles. It can fly directly from Los Angeles to Geneva, Beijing to San Francisco or Moscow to Singapore at its long-range cruise speed of Mach 0.8. At Mach 0.85, the 6X has a range of 5,100 nautical miles, connecting New York to Moscow, Paris to Beijing or Los Angeles to London. And it will all be powered by two Pratt & Whitney engines, each with 13,000 to 14,000 pounds of thrust.

The longer range and smoother flight are the result of an ultra-efficient wing—which minimizes the impact of turbulence—and a next-generation digital flight-control system that regulates all moving surfaces, including a new control surface called a flaperon. The latter boosts control during approach—especially on steep descents.