Cessna Citation V

Last updated
Citation V/Ultra
Citation Encore/Encore+
Cessna uc-35a citation 560 ultra v arp.jpg
The Citation 560 (here a U.S. Army UC-35A) is a small business jet with twin aft-mounted turbofans
Role Corporate jet
National originUnited States
Manufacturer Cessna
First flightAugust 1987
Introduction1987 (Citation V), 1994 (Ultra), 1998 (Encore)
Primary users United States Army
United States Marine Corps
Produced1989 (V) – 2011 (Encore+) [1]
Number built774 : 262 V, 279 Ultra, 168 Encore, 65 Encore+ [1]
Developed from Cessna Citation S/II

The Cessna Citation V (Model 560)[ clarification needed ] is a business jet built by Cessna that was in production from 1989 until 2011. During that time, 774 such craft were made. The first Model 560 prototype, a stretched version of the Citation S/II, flew in August 1987 and was certified on December 9, 1988.

Contents

The upgraded Citation Ultra was announced in September 1993, the Citation Encore upgraded with PW535 turbofans was announced in 1998, before the improved Encore+. Its U.S. military designation is UC-35 as an executive transport and OT-47B as a drug interdiction reconnaissance aircraft.

Design and development

The Citation V (Model 560) is a development of the Citation S/II, retaining the supercritical airfoil and swept wing roots of that aircraft, but with a 1.5 ft (0.46 m) fuselage stretch and recontoured interior for increased passenger space. [2] The passenger cabin is 17.3 ft (5.3 m) long, 4.9 by 4.8 ft (149 by 146 cm) wide and high with a dropped aisle, has seven windows on each side and accommodates a four-seat club plus three chairs and a closed, belted lavatory. [3] Maximum seating capacity is eleven, consisting of two pilots, eight passengers in the cabin, and one additional passenger or crew member in the belted lavatory. [4] The engines were changed to more powerful Pratt & Whitney Canada JT15D-5A turbofans with 2,900 lbf (13 kN) of thrust, an overall increase of 800 lbf (3.6 kN) over the S/II that increased cruise speed to 425 kn (787 km/h) and service ceiling to 45,000 ft (14,000 m), although maximum range decreased from 2,090 nmi (3,870 km) to 1,960 nmi (3,630 km) due to slightly increased fuel consumption. Cessna also replaced the fluid deicing system of the S/II with improved pneumatic deicing boots for decreased weight and easier maintenance, and the horizontal stabilizer span was increased slightly to compensate for the increased engine thrust. The Citation V was also the first Citation with an electronic flight instrument system (EFIS) offered as standard equipment, albeit only on the captain's side. [5]

A preproduction prototype flew in early 1986 and the first engineering prototype made its maiden flight in August 1987. The Citation V was announced at the NBAA convention later that year, Federal Aviation Administration (FAA) certification was granted on December 9, 1988, and 262 were delivered between April 1989 and mid 1994. The Citation V was the best-selling business jet on the market during its production run. [6] [7]

The Citation V was followed in 1994 by the Citation Ultra with slightly more thrust, the Citation Encore in 2001 then the Citation Encore+ in 2007 through early 2010. [3]

Citation Ultra

The upgraded Citation V Ultra was announced in September 1993 and FAA certification was granted in June 1994. It features extensively redesigned JT15D-5D engines with new compressors, high-pressure turbines, and a one-piece solid machined fan disks, increasing thrust to 3,045 lbf (13.54 kN) while reducing fuel consumption and weight; consequently, the Ultra was the first straight winged Citation with sufficient performance to exceed its critical Mach number in level flight. [8] The captain's side EFIS of the Citation V was upgraded to a full Honeywell Primus 1000 glass cockpit for both pilots. [4] [6] [7] Deliveries amounted to 279. [1] The Ultra was named Flying magazine's "Best Business Jet" of 1994 [9] and it was produced until 1999. [4] Both the Citation V and Ultra hold 5816 pounds of fuel.[ citation needed ]

By 2018, Citation V/Ultra were priced at $1.1–1.6 million. [10]

Citation Encore/Encore+

The Citation Ultra Encore was announced at the 1998 NBAA convention, upgraded with new PW535 engines, plus trailing link main undercarriage, more fuel capacity, updated interior and improved systems. [7] Its maximum cruise altitude is FL 450. [11] Deliveries amounted to 168. [1] The Encore was certified in April 2000 with first delivery in late September 2000.

The upgraded Citation Encore+ was offered from 2007 through early 2010. [3] Deliveries amounted to 65. [1] It was certified by the FAA in December 2006.

The Encore+ adds FADEC and Rockwell Collins Pro Line 21 avionics with a center MFD and both side PFDs. Its weight increased by 200 lb (91 kg) and, typically equipped, it can haul a 850–1,170 lb (390–530 kg) payload with full fuel. It can take off in 3,520 ft (1,070 m) in ISA conditions, has good hot-and-high performance and climbs directly to FL 450 in 27 min. It has a 1,800 nmi (3,300 km) range at 390 kn (720 km/h) TAS, the CJ3+ speed but slower than a CJ4. It can fly with one pilot but most are operated with two. [3]

Fuel burn is 1,200 lb (540 kg) for the first hour then 900–1,000 lb (410–450 kg), it costs $1,800–1,900 per hour overall with December 2018 fuel prices and $325,000 for fixed expenses. Light checkups are due every 150 h, basic maintenance at 300 h or 24 months, comprehensive inspections at 1,200 h or 36 months, engine hot section inspections at 2,500 h with 5,000 h overhauls and simple inspections at 10,000 and 12,000 h and at 10,000 and 15,000 landings. [3]

An Encore+ is valued at $3.4–3.8 million in December 2018 and it benefits from Textron Aviation's support. The CJ3 has better fuel efficiency and runway performance but a shorter cabin, the Learjet 45XR cruises faster and hauls more but needs longer runways and burns more fuel, while the CJ4 has better payload/range but is more expensive. [3] The later Model 560 variants are the fastest and farthest flying jets with the type certificate of the original Citation 500. [3]

Softer landing trailing link main landing gear reduced fuel tank capacity to 5,440 pounds, 360 pounds less than the Ultra's, but it has more range. The wheel track was narrowed 3.7 feet for better ground tracking and easier crosswind landing.

The wing leading edge is de-iced by bleed air. Boundary layer energizers and a stall fence improve stall characteristics. Pressurization is digitally controlled and brake modulation is improved. Redesigned interior fittings and passenger seats provide more seated headroom. Passenger service units provide more even airflow and temperature control.

MTOW increases by 330 pounds to 16,630 pounds, to carry five passengers with full fuel, lengthening takeoff from the 3,180 feet needed by the Ultra. The improved PW535 high altitude thrust allow the Encore to climb faster and cruise higher.

Military designations

USMC UC-35D at Mojave, California Marines-uc35-6766-070403-04cr-16.jpg
USMC UC-35D at Mojave, California

The UC-35A is the United States Army designation and UC-35C is the United States Marine Corps designation for the Citation Ultra, which replaced older versions of the C-12 Huron. [12]

Another version of the Model 560 is the OT-47B [N 1] Tracker, five of which were purchased by the Department of Defense for use in drug interdiction reconnaissance operations, based at Maxwell Air Force Base. [13] The OT-47B utilizes AN/APG-66 fire control radar and the WF-360TL imaging system. [14] The OT-47Bs have been operated on loan to the Colombian Aerospace Force [15] and Peruvian Navy. [16]

The UC-35B is the Army designation and UC-35D is the Marine Corps designation for the Citation Encore. [17] [18]

Variants

Model 560 Citation V
Development of Citation S/II certificated on December 9, 1988, with 2,900 lbf (12.9 kN) JT15D-5A engines, 15,900 lb (7.21 t) maximum takeoff weight (MTOW), 861 US gal (3,260 L) usable fuel, and EFIS on captain's side only. [2] [7] [19] [20]
Model 560 Citation Ultra
Improved Citation V with 3,045 lbf (13.54 kN) JT15D-5D engines, 16,300 lb (7.39 t) MTOW, and full EFIS instruments. [8] [19] [20]
Model 560 Citation Encore
Improved Citation Ultra certificated on April 26, 2000, with 3,400 lbf (15.1 kN) PW535A engines, 16,630 lb (7.54 t) MTOW, 806 US gal (3,050 L) usable fuel, [19] and improved trailing-link landing gear. [20]
Model 560 Citation Encore+
Improved Encore certificated on December 14, 2006, with PW535B engines, [19] includes FADEC and a redesigned avionics. [20]
UC-35A
U.S. Army and U.S Air Force transport version of the V Ultra.
UC-35B
U.S. Army transport version of the Encore.
UC-35C
U.S. Marine Corps transport version of the V Ultra. [18] Two aircraft. [21]
UC-35D
U.S. Marine Corps transport version of the Encore. [18] Eleven aircraft. [21]
OT-47B Tracker
Five V Ultras purchased by United States Department of Defense in 1995 for drug interdiction reconnaissance, equipped with AN/APG-66 radar and WF-360TL thermal imaging systems. [22] [14]

Operators

Civilian operators

The aircraft is operated by private individuals, companies, fractionals, charter operators and aircraft management companies.

Military operators

Specifications (Cessna Citation Ultra)

Data from Business & commercial aviation, [26] Brassey's World Aircraft & Systems Directory 1999–2000 [27]

General characteristics

Performance

See also

Related development

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References

Notes

  1. ↑ The T-47A designation had previously been used by the U.S. Navy for a radar systems trainer version of the Citation S/II.

Citations

  1. 1 2 3 4 5 "500-Series Technical Review". Textron Aviation. April 28, 2015. Archived from the original on March 4, 2016. Retrieved December 18, 2015.
  2. 1 2 Szurovy 1999, pp. 34–35.
  3. 1 2 3 4 5 6 7 Fred George (Dec 17, 2018). "The Ultimate Narrowbody Citation 560: Encore+". Business & Commercial Aviation.
  4. 1 2 3 Sigari, Cyrus (December 1, 2017). "Best Buy Citations- Used Jets with Like-New Appeal". aopa.com. Aircraft Owners and Pilots Association . Retrieved November 4, 2022.
  5. ↑ Szurovy 1999, pp. 35–36.
  6. 1 2 Szurovy 1999, p. 36.
  7. 1 2 3 4 The Cessna 560 Citation V, Ultra & Encore from Airliners.net
  8. 1 2 Szurovy 1999, pp. 36–37.
  9. ↑ "Flying's Best of 1994". Flying . Greenwich, Connecticut: Hachette Filipacchi Media U.S. February 1995. Retrieved November 4, 2022.
  10. ↑ Mark Huber (December 2018). "For many models, market hitting the apex" (PDF). Aviation International News. pp. 20–21, 24. Archived from the original (PDF) on 2018-12-27. Retrieved 2018-12-27.
  11. ↑ "Citation Encore specifications". Cessna. Archived from the original on 2008-04-12.
  12. ↑ UC-35A information from GlobalSecurity.org
  13. ↑ Jackson, Paul, Jane's All the World's Aircraft 1996–97, Jane's Information Group, 1996.
  14. 1 2 "Cessna on track". flightglobal.com. July 5, 1995. Retrieved November 4, 2022.
  15. ↑ Picture of the Cessna OT-47B Citation Ultra (560) aircraft Retrieved 21 August 2011.
  16. ↑ "Peru Maps Military Aviation Revival", Flight International, October 21–27, 2003, p.17
  17. ↑ UC-35B information from GlobalSecurity.org
  18. 1 2 3 ""NAVAIR Oversees Final Marine Corps Cessna Citation Encore Delivery" May 24, 2006". Archived from the original on April 13, 2016. Retrieved August 25, 2008.
  19. 1 2 3 4 "Type Certificate data sheet No. A22CE" (PDF). FAA. April 20, 2021.
  20. 1 2 3 4 Citation V, Ultra and Encore info from Aviation Safety Network
  21. 1 2 Baugher, Joe (October 30, 2022). "US Navy and US Marine Corps BuNos Third Series (164196 to ???)". joebaugher.com. Retrieved November 3, 2022.
  22. ↑ Frawley, Gerard (2002). The International Directory of Military Aircraft, 2002–2003. Fyshwick, ACT, Australia: Aerospace Publications Pty Ltd. p. 61. ISBN   1-875671-55-2.
  23. ↑ Hoyle Flight International 11–17 December 2012, p. 48.
  24. 1 2 Hoyle Flight International 11–17 December 2012, p. 63.
  25. ↑ New aircraft for peruvian army
  26. ↑ Fred George (Jan 1997). "Citation Ultra". Business & commercial aviation.
  27. ↑ Taylor 1999, p506.
  28. ↑ Mark Huber (Aug 2007). "Citation V/Ultra is perhaps the best example of Cessna's well-honed ability to continually evolve a time-tested". BJT online.

Bibliography

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