Cessna Citation Sovereign
The Cessna Citation Sovereign Model 680 series is a midsize business jet produced by Cessna from 2004 until current. The Model 680 is a 3,200 nmi range business jet developed by Cessna, part of the Cessna Citation family. The Citation Excel fuselage was stretched and joined with an all-new, larger wing and more powerful Pratt & Whitney Canada PW306C engines for increased maximum takeoff weight. It seats up to 10 passengers and 2 pilots.
Specifications
Exterior Dimensions
Wing span: 72 ft 4 in
Length: 63 ft 6 in
Height: 20 ft 4 in
Interior
Cabin Height: 68 in
Cabin Width: 66 in
Cabin Length: 25 ft 3 in
Cabin Volume: 571 cu.ft.
Baggage volume: 135 cu. ft.
Baggage weight: 1,435 lb
Seating: typically configured for 8 passengers 2 crew
WEIGHTS
Maximum Ramp Weight 31,025 lb (14,073 kg)
Maximum Takeoff Weight 30,775 lb (13,959 kg)
Maximum Landing Weight 27,575 lb (12,508 kg)
Maximum Zero Fuel Weight 21,000 lb (9,525 kg)
Usable Fuel Weight 11,390 lb (5,166 kg)
Usable Fuel Volume 1,700 gal (6,435 l)
Basic Operating Weight 18,235 lb (8,271 kg)
Useful Load 12,790 lb (5,801 kg)
Maximum Payload 2,765 lb (1,254 kg)
Full Fuel Payload 1,400 lb (635 kg)
Avionics
Honeywell Epic Integrated Avionics, 2013 and up are equipped with Garmin G5000
Performance
| Horsepower: 5907.00 lbs | Gross Weight: 30,775 |
| Top Speed: 460 | Empty Weight: 18,235 |
| Cruise Speed: | Fuel Capacity: 1,700 gal |
| Stall Speed (dirty): | Range: 3,200 |
| Rate of Climb: 4,083 fpm | Rate of Climb (One Engine): |
| Service Ceiling: 47,000 | Ceiling (One Engine): 23,500 |
| Takeoff | Landing |
| Ground Roll: 3,530 ft | Ground Roll:2,600 ft |
| Takeoff Roll Over 50 ft: | Landing Roll Over 50 ft: |
Engines
Manufacturer: Pratt & Whitney
Model: PW306C
Horsepower: 5907 lb thrust
TBO: 6000 hrs
History
Announced at the 1998 NBAA convention, it made its maiden flight in February 2002, certification was awarded on June 2, 2004, and deliveries began in late September. The improved Sovereign+ was announced at the October 2012 NBAA for a first flight in April 2012 and deliveries in December, with added winglets and an improved flight deck and engines.
Development
In the late 1990s, Cessna wanted to fill a gap in its midsize line-up as demand for its Cessna Citation III/VI/VII waned, with greater cabin comfort, performance and utility than its concurrence but with Citation reliability, a high aerodynamic lift wing for runway performance, and near transcontinental flight range to compete with the Hawker 800, a thrust-to-weight ratio to rival the climb performance of the Learjet 60.
It was announced at the 1998 NBAA convention, it made its maiden flight in February 2002 and deliveries began in late September 2004. FAA certification was awarded on June 2, 2004. EASA certification came on 31 March 2005.
The improved Sovereign+ was announced at the October 2012 NBAA, it rolled out in early March 2013, first flew in April, and began deliveries on December 23 after certification, at a time when the Sovereign fleet reached 349 and had flown 802,000 hours. Winglets were for more range of 150 to 3,000 nmi, new PW306D engines with autothrottles provides 5,852 lbf of thrust for a 458 kn top speed and a FL450 direct climb, full fuel payload was increased and the Garmin G5000 replaces the avionics.
Design
The Citation Excel fuselage was stretched for a 6.6 ft (2.0 m) longer cabin and joined with a large, newly-designed 515.9 sq ft (47.93 m2) wing with large trailing edge flaps for good runway performance, with 16.3° wing sweep and a relatively high critical Mach number for efficient 445 kn (824 km/h) TAS cruise. It is powered by 5,770 lbf (25.7 kN) Pratt & Whitney Canada PW306C engines, derated from the Gulfstream G200 or Do 328JET, and uses Honeywell Primus Epic glass cockpit avionics with four LCD screens. The cabin maintains a 7,200 ft (2,200 m) altitude with the 9.3 psi (0.64 bar) pressurization and typically comprise double-club seating for eight, two more than the Gulfstream G150, plus a side facing seat, and can accommodate up to 11.
It can carry a full fuel payload of 1,000–1,200 lb (450–540 kg) and can fly 2,840 nmi (5,260 km) at a block speed of 406 kn (752 km/h). It can takeoff in 3,640 ft (1,110 m) and climb to FL410 in 19 min and to FL430 in 26 min. It travels 400 nmi (740 km) in the first hour while burning 2,000 lb (910 kg) at FL410, 420 nmi (780 km) the second hour with 1,550 and 1,400 lb (700 and 640 kg) the third hour at FL430.[3] At a weight of 10,505 kg (23,160 lb) and ISA -5°C, it burns 653 kg (1,440 lb) per hour at Mach 0.778 / 441 kn (817 km/h) or 454 kg (1,001 lb)/h at a long-range cruise speed of Mach 0.634 / 360 kn (670 km/h).
Operation
The Citation Sovereign and Sovereign+ has the longest and most spacious cabin in the traditional mid-size jet market. The aircraft fuselage is an elongated version, which is 6.6 feet longer, than the Citation Excel. The aircraft also has a large, clean-sheet design 515 square foot wing with large trailing-edge flaps. With excellent short-field performance, both the Sovereign and Sovereign+ can easily operate out of 4,000 foot runways. In addition, this airframe includes trailing link landing gear, which allows for softer landings and taxiing.
Both the Citation Sovereign and Sovereign+ have great climb performance of over 4,000 feet per minute. The maximum cruise speed is 458 knots for the Sovereign and 460 knots for the Sovereign+. Both models have a service ceiling of 47,000 feet.
In conclusion, the Citation Sovereign and Soverign+ are in a class all their own. They outperform all mid-sized jets, and even many super mids. They have an outstanding range and can operate out of short-fields while delivering cabin comfort and spacious baggage capacity. With excellent performance, a large cabin, and low operating costs, the Citation Sovereign and Sovereign+ are an excellent option for operators looking to step up to a transcontinental aircraft.
Click here to read more about the Sovereign and Sovereign+ at ElliottJets.
