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Cessna 441 Conquest II

 

Cessna 441 Conquest II

Cessna 441 Conquest II
Role Utility monoplane
National origin United States
Manufacturer Cessna
First flight 1975
Introduction 1977 Paris Air Show
Status in active operation in 2014
Primary users corporate owners
charter flight operators
Produced 1977-1987[1]
Number built 362[2]

The Cessna 441 Conquest II was the first turboprop powered aircraft designed by Cessna and was meant to fill the gap between their jets and piston-engined aircraft. It was developed in November 1974, with the first aircraft delivered in September 1977. It is a pressurized, 8-9 passenger turbine development of the Cessna 404.

Contents

  • Design and development 1
    • Modifications 1.1
  • Airframe Limitations 2
  • Operational use 3
  • Designation 4
  • Further developments 5
  • Specifications (Conquest II) 6
  • See also 7
  • References 8
  • Bibliography 9
  • External links 10

Design and development

The aircraft has retractable tricycle landing gear and on takeoff has a ground roll of 1,785 ft (544 m). The high aspect ratio wings use bonded construction techniques.[3]

The Conquest is powered by two Garrett TPE331 turboprops powering two four-bladed McCauley propellers. A 441 with Pratt & Whitney Canada PT6A-112 turboprops was flown in 1986 but did not enter production.

Modifications

The majority of Cessna 441s have been modified by installing Garrett TPE331-10 engines in place of the earlier versions of this same engine that it was delivered with. This modification reduces maintenance costs while increasing horsepower, service ceiling, fuel efficiency and range. Cessna 441s with this conversion tend to have higher resale values than aircraft that have not been converted.[4][5]

Converting from the standard three blade propellers to smaller diameter Hartzell four blade propellers results in a climb rate improved by 200 fpm (1.01 m/s) and a 5 kn (9 km/h) increase in cruise speed as well as reducing cabin noise and improving ground clearance.[5]

Airframe Limitations

The Cessna 441 is limited to 22,500 hours of air time by a Cessna Supplementary Inspection Document (SID). This life-limit SID is mandatory in the USA for air carriers operating the aircraft but is advisory only for private operators.[6]

Operational use

The second Cessna 441 to be built at Brussels National Airport in 1977 before sale to Norway

The Conquest has been operated by corporate owners, and air charter operators and by the Royal Flying Doctor Service in Australia. Examples of the type have been exported to many countries including Austria, Australia, Canada, Ecuador, Finland, Germany, Iceland, Mexico, Norway, Peru, South Africa, Sweden and the United Kingdom. Many remain in service in 2014.

Designation

The ICAO designator for the Cessna Conquest as used in flight plans is C441.

Further developments

A smaller aircraft was marketed as the Cessna 425 Conquest I, itself a turbine development of the Cessna 421.

Specifications (Conquest II)

Data from Jane's All The World's Aircraft 1982–83[7]

General characteristics
  • Crew: 1 or 2 pilots
  • Capacity: 8-10 passengers
  • Length: 39 ft 0 in (11.89 m)
  • Wingspan: 49 ft 4 in (15.04 m)
  • Height: 13 ft 2 in (4.01 m)
  • Wing area: 253.6 sq ft (23.56 m2)
  • Aspect ratio: 9.6:1
  • Airfoil: NACA 23018 at root, NACA 23019 at tip
  • Empty weight: 5,682 lb (2,577 kg)
  • Gross weight: 9,850 lb (4,468 kg)
  • Powerplant: 2 × Garrett TPE331-8-403S turboprops, 636 shp (474 kW) each
  • Propellers: 3-bladed McCauley

Performance

  • Maximum speed: 340 mph (547 km/h; 295 kn) at 16,000 ft (4,875 m)
  • Cruise speed: 298 mph (259 kn; 480 km/h) at 35,000 ft (10,700 m)
  • Stall speed: 86 mph; 75 kn (139 km/h) flaps and gear down
  • Range: 2,525 mi (2,194 nmi; 4,064 km) at 35,000 ft (10,700 m)
  • Service ceiling: 35,000 ft (10,668 m)
  • Rate of climb: 2,435 ft/min (12.37 m/s)

Avionics

  • Cessna 1000A Integrated Flight Control System

See also

Aircraft of comparable role, configuration and era

References

  1. ^ Simpson, 2005, p. 97
  2. ^ Simpson, 2005, p. 97
  3. ^ Alan Healy (October 1977). "The New Cessna Conquest". Air Progress. 
  4. ^  
  5. ^ a b Hubber, Mark (October 2008). "Used Jet Review - Cessna 441 Conquest II". Retrieved 2009-03-21. 
  6. ^ FAA Clarifies Cessna's Life Limit For The 441 Conquest II accessed 10 September 2007
  7. ^ Taylor 1982, pp. 353–354.

Bibliography

  • Simpson, Rod (2005). The General Aviation Handbook. Hinckley, England: Midland Publishing.  
  •  

External links

  • Airliners.net - Photographs
  • Airliners.net - Cessna Conquest
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