Inside the $85 Million Cessna Citation Hemisphere: The Jet That Could Outsell Gulfstream

Cessna built a jet designed to fly 4,500 miles and beat Gulfstream on price. Then they stopped. The Citation Hemisphere, priced at approximately 85 million, never flew. Here's why. Let's dive in. Performance and range. The Citation Hemisphere was not supposed to be a minor step forward. It was supposed to be Cessna's moonshot, a large cabin, ultra-long range business jet designed to compete directly with Gulfstream and Bombardier at a price point those manufacturers had never had to defend before. The numbers on paper were extraordinary. Cessna designed the hemisphere for a maximum range of 4,500 nautical miles. That's approximately 5,170 miles. To put that in context, it would connect New York to London, Los Angeles to London, or Miami to any city in South America nonstop. No stops, no refueling, no compromises. For a Cessna product, those were numbers nobody had ever seen before. Speed was equally ambitious. The hemisphere was designed to cruise at Mach 0.9, approximately 690 miles per hour. That is faster than many commercial airliners in service today, and only a handful of business jets have ever reached it. At that speed and range, Cessna was not competing in the mid-size or super mid-size market. They were taking the fight directly to the upper end of large cabin aviation. The planned power plant was the Safran Silvercrest 2C turbofan, with each engine rated at approximately 12,000 pounds of thrust. On the spec sheet, this looked like a capable and efficient pairing, a new generation engine purpose-built for long-range business jets. In practice, it would become the program's fatal weakness. Cabin altitude was planned at 5,000 feet, one of the lowest in the industry at time of announcement, designed to reduce fatigue on long transatlantic routes. Maximum operating altitude was planned at 45,000 feet, placing it well above commercial traffic and most weather systems. None of these capabilities were fringe marketing claims. Every specification was based on serious engineering work and credible design commitments. The jet that Cessna described was technically ambitious, but not impossible. What killed it had nothing to do with the airframe and everything to do with what would power it. But the engine problems weren't the only reason this jet never flew. The cabin Cessna designed and what was promised inside it is just as remarkable as the performance story. We'll get to that in a moment. Exterior design. On the outside, the Citation Hemisphere was strikingly clean for its category. Cessna designed it with a low swept wing and a swept T-tail configuration. Twin engines mounted at the rear of the fuselage in the traditional large cabin arrangement. The profile was purposeful and modern, more akin to a Falcon or Global than anything Cessna had built before. The fuselage diameter was a key design choice. At 102 inches across, it was wider than the Gulfstream G650 at that time, a deliberate statement by Cessna that they were building for interior volume first and fitting everything else around it. 20 oversized windows were planned along the fuselage, more than most competitors in the category. The visual effect would have been a bright, spacious exterior profile that telegraphed the cabin space within. The jet sat low on its landing gear, giving it a commanding ramp presence. Not aggressive, but authoritative. It looked exactly like what it was designed to be, a serious airplane for serious distances. Cabin. This was supposed to be Cessna's defining statement. The 102 inch interior diameter made the Hemisphere's cabin wider than every competitor in its class, a number Cessna used in nearly every press release from 2015 onward. Inside, the cabin was designed in three distinct zones across more than 30 feet of usable length. Standing height of six feet two inches meant full walk-around movement throughout, and the low cabin altitude of 5,000 feet was designed to make passengers arrive feeling genuinely rested, even after eight-hour transatlantic crossings. Seating configurations were planned for up to 19 passengers, an extraordinary number for a business jet. Though owner configurations would typically place eight to 12 seats across the three zones, maximizing comfort on long-haul missions, the ambition here was clear. Cessna wasn't designing a mid-sized jet with stretch goals. They were designing a flying living room capable of competing directly with the Bombardier Global Series and Gulfstream's ultra-long range lineup at a price that was supposed to undercut both by tens of millions of dollars. The Hemisphere was a direct answer to every buyer who wanted large cabin range, but couldn't justify the Gulfstream premium. Cockpit. The cockpit was planned around a fully integrated glass suite with modern touchscreen displays and dual pilot certification as standard. Cessna was targeting a clean, uncluttered flight deck layout that would feel familiar to pilots transitioning from their existing Citation family, reducing training overhead for operators already in the Citation ecosystem. Advanced weather radar, synthetic vision, and automated systems management were all planned as standard equipment. The avionics package had not been finalized at the time, development was suspended, but the design intent was clearly a forward-looking cockpit that would hold up across the aircraft's expected 30-year service life. For single pilot certification, one of the most commercially valuable distinctions a business jet can carry, Cessna had not committed publicly. The platform's size likely made dual pilot operations the realistic standard, consistent with all large cabin business jets in its class. What happened and what it cost? The Citation Hemisphere's story ends with an engine, or more precisely, with an engine that was never finished. The Safran Silvercrest program ran into serious technical problems beginning around 2016. The high-pressure compressor failed to meet performance targets, and Safran's development timeline began slipping, first by months, then by years. Cessna absorbed the delays, continued airframe development, and publicly maintained confidence in the program. Behind the scenes, the picture was deteriorating. In April 2018, Textron Aviation officially suspended development of the hemisphere. The stated reason was Safran's inability to resolve the Silvercrest engine issues to meet program requirements. The contract between Textron and Safran was terminated. By July 2019, the suspension became effectively permanent. The planned list price had been approximately $35 million at announcement, an almost unbelievably competitive figure for a jet in this class. By the time of suspension, some estimates had revised that figure upward significantly, with 85 million cited in later projections. Either number represented extraordinary value if the jet had ever entered service. As of 2025, Textron has provided no timeline for resuming the hemisphere program. The company has chosen to focus on its existing Citation lineup and the Gen 3 light jet family currently in development. The hemisphere, and the gap it would have filled in the market, remains open. That gap is now occupied by the Bombardier Global 6000, the Gulfstream G600, and others. Jets priced at $50 million and above. What Cessna could have sold for 35 to 85 million, the rest of the market sells for more. The hemisphere promised more jet for less money than anyone else was offering. The engine said no. Would you have bought one? Let me know in the comments And check out our full review of the Citation X Plus, Cessna's one undisputed speed record that actually made it to service. See you there.