Regan Brown
The Cessna Citation Hemisphere is a twin-engine, mid-size business jet that was first announced in 2015. It was expected to fly in 2019, but its development was suspended due to delays in the Safran Silvercrest engine's production. The Silvercrest engine was expected to reduce fuel consumption by up to 15% and nitrogen oxide emissions by up to 40%. The jet was designed for Mach 0.9 and would have had a range of 4,500 nautical miles (8,300 km). With a price tag of $35 million, it was set to become the newest and largest aircraft in the Cessna Citation family.
Explore related products
What You'll Learn
The Cessna Citation Hemisphere's fuel efficiency
The Cessna Citation Hemisphere was a business jet project by Cessna, first announced in 2015. The jet was expected to fly in 2019, but its development was suspended in 2018 due to delays in the development of its Safran Silvercrest engines. The Silvercrest engine was expected to improve fuel efficiency by up to 15% and reduce nitrogen oxide emissions by up to 40%. The jet was designed with a spacious cabin, capable of transporting up to 19 passengers, and was projected to have a range of 4,500 nautical miles (8,300 km).
The Citation Hemisphere was intended to be the largest jet in the Citation family, with a cruise speed of Mach 0.9. The original plan was for the jet to be powered by Snecma Silvercrest engines, with over 12,000 lbf (53 kN) of thrust. However, due to reduced performance in high-altitude tests, alternative engines were considered, including the Pratt & Whitney Canada PW800 engine. The PW800 series offers greater power output and could have been tailored to meet the needs of the Citation Hemisphere.
Textron Aviation, the parent company of Cessna, put the program on hold rather than terminating it, leaving room for the possibility of future development. The company expressed confidence in Safran's ability to resolve the issues with the Silvercrest engine, and the jet was expected to be FAA certified and operational by 2025.
NetJets, a fractional operator, announced the option to purchase up to 150 units of the Citation Hemisphere in 2018, priced at $35 million each. The jet was designed with fuel efficiency and reduced emissions in mind, and its development was well-received by potential customers. However, the delays in engine development led to the suspension of the project, with the potential for future revisions and alternative engine options.
Jaguar's Dual Tank: Easy Fueling Guide
You may want to see also
Explore related products
Silvercrest engine's impact on Hemisphere's fuel efficiency
The Citation Hemisphere is a twin-engine, mid-size business jet first announced in 2015. Cessna selected the Safran Silvercrest engine for the Hemisphere jet due to its excellent fuel economy, which is reportedly 15% better than competing engines. The Silvercrest engine was also chosen for its environmental friendliness, which would appeal to business travelers who demand environmental improvements.
The Silvercrest engine incorporates advanced, field-proven technologies to offer performance in its class in terms of direct operating cost, propulsion efficiency, reliability, and environmental friendliness. The engine lowers fuel consumption by up to 15%, reduces NOx emissions by up to 40% under CAEP/6 standards, and halves the noise footprint compared to other engines in its class. Cessna's decision to select the Silvercrest engine confirms the strategy of developing a new engine specifically designed for premium business jets.
However, the development of the Silvercrest engine faced delays due to technical issues, which impacted the progress of the Hemisphere jet. In 2017, Safran discovered a new issue with the Silvercrest during high-altitude testing, leading to concerns about the Hemisphere's future. Cessna acknowledged that the Hemisphere's performance targets relied on the fuel efficiency of the Silvercrest engines, stating that a larger engine would require a larger aircraft, which they were unwilling to pursue.
In April 2018, development of the Hemisphere jet was suspended to assess Safran's management of the Silvercrest issues before making a decision on its continuation. Safran announced a high-pressure compressor redesign, and testing was scheduled for July 2019 to prove the engine's operation. Despite the challenges, NetJets announced the purchase of up to 150 Hemispheres in 2018, demonstrating their confidence in the aircraft's potential. The Hemisphere jet is now projected to be FAA-certified and operational in 2025.
Connecting Home Fuel Tanks: A Guide to Safe Linking
You may want to see also
Explore related products
The Hemisphere's fuel economy
The Cessna Citation Hemisphere is a twin-engine, mid-size business jet that was announced in 2015. The jet was expected to fly in 2019, but its development was suspended due to delays in the Safran Silvercrest engine's production. The Silvercrest engine was expected to reduce fuel consumption by up to 15% and nitrogen oxide emissions by up to 40%did not meet these objectives.
The Hemisphere is designed for Mach 0.9 and has a range of 4,500 nautical miles (8,300 km). It will be the largest aircraft in the Citation family and the first large jet produced by Cessna. The jet will offer a stand-up clearance of more than 6.2 ft and a maximum cabin altitude of 5,000 ft. The cabin will have a width of 6 ft 5 in (1.96 m) and a length of 25 ft (7.6 m).
The Hemisphere will be powered by two next-generation Safran Silvercrest engines with a thrust rating of 12,000 lb. The Silvercrest engine will be integrated with a ForeVision advanced health monitoring system, which will provide a clear picture of the engine's working condition. The engine is currently undergoing a comprehensive test program and is anticipated to receive certification.
The Hemisphere is projected to be FAA certified and operational in 2025. The hourly rate to charter this jet will likely start at around $6,250 per hour and will vary based on make and model, aircraft scheduling, flight routing, and other factors.
Fuel Tank Math: Calculating Gallons Easily
You may want to see also
Explore related products
![Tank [DVD]](https://m.media-amazon.com/images/I/71ySD+fKwSL._AC_UL320_.jpg)
The Hemisphere's range
The Cessna Citation Hemisphere is a twin-engine, mid-size business jet that was announced in 2015. It was expected to fly in 2019 but its development was suspended due to a delay in the development of its Safran Silvercrest engines. The Silvercrest engine was chosen because it would reduce fuel consumption by up to 15% and nitrogen oxide (NOx) emissions by up to 40%. The jet will be equipped with Honeywell's Primus Epic integrated cockpit system and a transoceanic flight management system, which will enable operators to reach destinations faster and at a lower cost.
The Hemisphere is Cessna's biggest aircraft to date and will join the Citation Latitude and Longitude series of business jets. It will have a range of 4,500 nautical miles (8,300 km) and will be capable of travelling non-stop from Dubai to Lisbon, Marrakech, Johannesburg, Jakarta and Tokyo. The aircraft will offer a stand-up clearance of more than 6.2 ft and the maximum cabin altitude will be 5,000 ft. The interior furnishings, including seats and cabinets, will be designed and handcrafted in-house. The seats will be fully berthable and equipped with thermo-electric technology, providing better heating and cooling comfort for passengers.
The jet will be powered by two next-generation Safran Silvercrest engines with a thrust rating of 12,000 lb. The engines will integrate advanced technologies to reduce direct operating costs, improve propulsion efficiency, reliability, and environmental friendliness. The Silvercrest engine will be integrated with ForeVision advanced health monitoring system, which will provide a clear picture of the working condition of the power plant.
NetJets announced the option to purchase 150 units in 2018, priced at $35 million each. The Hemisphere is projected to be FAA certified and operational in 2025.
Exploring Train Tanker Capacities: How Much Fuel?
You may want to see also
Explore related products
The Hemisphere's first flight
The Cessna Citation Hemisphere is a twin-engine, mid-size business jet. The project was first announced in November 2015 and was expected to fly in 2019. The jet was designed for Mach 0.9 and would have had a range of 4,500 nautical miles (8,300 km). It was also set to have the widest cabin in its class.
The development of the Cessna Citation Hemisphere was, however, suspended in April 2018 due to a delay in the development of its Safran Silvercrest engines. The Silvercrest engine was expected to produce over 12,000 lbf (53 kN) of thrust, but it failed to meet these objectives. The business jet's first flight was then pushed to 2025.
Textron, the manufacturer of the Cessna Citation Hemisphere, was confident that Safran would resolve the engine's issues before the 2019 first flight. In May 2018, Safran announced it had launched a high-pressure compressor redesign, with testing scheduled for July 2019. This redesign was critical to the continuation of the Hemisphere program.
Despite the engine issues, NetJets announced the option to purchase 150 Cessna Citation Hemispheres in 2018, priced at $35 million each. NetJets also ordered 175 Citation Longitudes for $26 million each.
Hot Fuel Tanks: Burning More Fuel or a Myth?
You may want to see also
Frequently asked questions
The exact size of the fuel tank on the Cessna Citation Hemisphere is not publicly available. However, the aircraft has a range of 4,500 nautical miles (8,300 km) and is designed for Mach 0.9.
The Cessna Citation Hemisphere is powered by two Safran Silvercrest engines with a thrust rating of 12,000 lb.
The Cessna Citation Hemisphere has a maximum cruise speed of 516 knots (956 km/h).
The Cessna Citation Hemisphere was first announced in November 2015 at the National Business Aviation Association (NBAA) conference.
