The Cessna Citation Hemisphere was a

business jet A business jet, private jet, or bizjet is a jet aircraft designed for transporting small groups of people, typically business executives and high-ranking coworker, associates. Business jets are generally designed for faster air travel and more ...

project by

Cessna Cessna () is an American brand of general aviation aircraft owned by Textron Aviation since 2014, headquartered in Wichita, Kansas. Originally, it was a brand of the Cessna Aircraft Company, an American general aviation aircraft manufactu ...

Announced in November 2015, it was then expected to fly in 2019 but its development was suspended in April 2018 due to a delay in the development of its Safran Silvercrest engines. It was designed for Mach 0.9 and would have a range.

Development

Announced at the 2015

National Business Aviation Association The National Business Aviation Association (NBAA) is a professional association and lobbying group for private business aviation. Overview NBAA is set up as a 501(c)(6) non-profit entity. NBAA organizes conferences and seminars. Edward M. ...

(NBAA) conference with the widest cabin in its class, it was expected to fly in 2019. Although the Snecma Silvercrest was originally selected, the process was re-opened to the

Pratt & Whitney Canada PW800 The Pratt & Whitney Canada PW800 is a series of turbofan engines in the thrust class, manufactured by Pratt & Whitney Canada. Intended for the regional jet and business jet market, the gear-less PW800 shares a common core with the larger, geare ...

. The Silvercrest with over of thrust was confirmed for the 2016 NBAA Convention, along the selection of

Honeywell Honeywell International Inc. is an American publicly traded, multinational conglomerate corporation headquartered in Charlotte, North Carolina. It primarily operates in four areas of business: aerospace, building automation, industrial automa ...

Primus Epic cockpit and

Thales Group Thales S.A., Trade name, trading as Thales Group (), is a French multinational corporation, multinational aerospace and defence industry, defence corporation specializing in electronics. It designs, develops and manufactures a wide variety of aer ...

fly-by-wire Fly-by-wire (FBW) is a system that replaces the conventional aircraft flight control system#Hydro-mechanical, manual flight controls of an aircraft with an electronic interface. The movements of flight controls are converted to electronic sig ...

flight control system. The Silvercrest axial-centrifugal high-pressure compressor architecture is common below but rare in its range, and the pressure losses complexity at the final centrifugal stage made it slow to respond to commands in high altitude tests. This made Dassault cancel its Silvercrest-powered Falcon 5X, but the Hemisphere business case depends on it as it could lead to the best

fuel efficiency Fuel efficiency (or fuel economy) is a form of thermal efficiency, meaning the ratio of effort to result of a process that converts chemical energy, chemical potential energy contained in a carrier (fuel) into kinetic energy or Mechanical work, w ...

in the segment. Textron is confident Safran can resolve the problems before the 2019

first flight First Flight may refer to: * Maiden flight, the first flight of a new aircraft type * First Flight Airport, in North Carolina, United States * First Flight High School, in Kill Devil Hills, North Carolina * ''First Flight'' (sculpture), a sculp ...

. In April 2018, development was suspended to see how Safran manage the Silvercrest problems before a decision on its continuation is made, or to defer it or to switch to another engine. In May 2018, Safran announced it had launched a high-pressure compressor redesign for a go-ahead decision by the middle of 2019, after testing, shelving the Hemisphere program if problems cannot be fixed. The redesigned compressor will be tested in July 2019 to prove the engine operation. On October 15, 2018, fractional operator

NetJets NetJets Inc. is an American company that sells Fractional ownership of aircraft, fractional ownership shares in private business jets. Founded as Executive Jet Airways in 1964, it was later renamed Executive Jet Aviation. NetJets became the ...

announced the purchase of up to 150 Hemispheres, priced at $35 million each, along 175

Citation Longitude The Cessna Citation Longitude is a business jet produced by Cessna, part of the Cessna Citation family. It remains the largest business jet by Cessna. Announced at the May 2012 EBACE, the Model 700 made its first flight on October 8, 2016, with ...

, ordered for $26 million each. In July 2019, Textron suspended the development as its Safran Silvercrest turbofans did not meet objectives. In October 2019, Textron reaffirmed that the project was still suspended, but not terminated.

Specifications

References

{{Cessna Citation Hemisphere Abandoned civil aircraft projects of the United States Twinjets Low-wing aircraft

Hemisphere Hemisphere may refer to: In geometry * Hemisphere (geometry), a half of a sphere As half of Earth or any spherical astronomical object * A hemisphere of Earth ** Northern Hemisphere ** Southern Hemisphere ** Eastern Hemisphere ** Western Hemi ...

T-tail aircraft Aircraft with retractable tricycle landing gear 2010s United States business aircraft

Development

Specifications

See also

References