Cessna 421

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421 Golden Eagle
Cessna421B-Landing.jpg
Cessna 421B landing
Role Light transport
National origin United States of America
Manufacturer Cessna
First flight October 14, 1965
Produced 1967–1985
Developed from Cessna 411
"Golden Eagle" logo on the fin of a 421B
Cessna 421B Golden Eagle with aftermarket RAM-modified engines
A Cessna 421B Golden Eagle, front view
A Cessna 421B Golden Eagle
1982 Cessna 421C
Cessna 421C Golden Eagle, typical pilot's instrumentation
Cessna 421C Golden Eagle, typical copilot's instrumentation

The Cessna 421 Golden Eagle is a development of the earlier Cessna 411 light twin-engined personal transport aircraft. The main difference between the two models is that the 421 is pressurized.[1]

Development[edit]

The 421 uses geared Continental GTSIO-520-D engines. The gearing means that rather than the driveshaft being directly connected to the propeller, it drives through a set of reduction gears.[1]

The 421 was first produced in May 1967. The 421A appeared in 1968 and the aircraft was redesigned in 1970 and marketed as the 421B. In 1975 the 421C appeared which featured wet wings, the absence of wingtip fuel tanks and landing gear that was changed from straight-leg to a trailing-link design from the 1981 model year onwards. Production ended in 1985 after 1,901 aircraft had been delivered.[1]

The Cessna 421 was first certified on 1 May 1967 and shares a common type certificate with models 401, 402 411, 414 and 425.[2]

Some 421s have been modified to accept turboprop engines,[3] making them very similar to the Cessna 425, which itself is a turboprop development of the 421.[4]

Variants[edit]

421
Type approved 1 May 1967, powered by two Continental GTSIO-520-Ds of 375 hp (280 kW) each, maximum takeoff weight 6,800 lb (3,084 kg).[2]
421A
Type approved 19 November 1968, powered by two Continental GTSIO-520-Ds of 375 hp (280 kW) each, maximum takeoff weight 6,840 lb (3,103 kg).[2]
421B Golden Eagle/Executive Commuter
Eight-seat light passenger transport aircraft. Type approved 28 April 1970, powered by two Continental GTSIO-520-Hs of 375 hp (280 kW) each, maximum takeoff weight 7,250 lb (3,289 kg), later models 7,450 lb (3,379 kg).[2]
421C Golden Eagle/Executive Commuter
Model with new wing and landing gear. Type approved 28 October 1975, powered by two Continental GTSIO-520-Ls or Continental GTSIO-520-Ns of 375 hp (280 kW) each, maximum takeoff weight 7,450 lb (3,379 kg).[2]
Riley Turbine Rocket 421
Conversion of Cessna 421 aircraft by fitting two Lycoming LTP101 turboprop engines. Formal designation R421BL and R421CL for conversions of 421B and C respectively.[3]
Riley Turbine Eagle 421
Conversion of Cessna 421C aircraft by fitting two 750hp Pratt & Whitney Canada PT6A-135 turboprop engines. Formal designation R421CP.[3]
Aviation Alliance Excalibur
A remanufacturered Cessna 421 airframe equipped with Pratt & Whitney Canada PT6A-135A turboprop powerplants, new cockpit, cabin interior and avionics. The prototype had flown by late 2012. The remanufacturer, Aviation Alliance, is headed by former Cessna CEO Jack Pelton and is a partnership of ten individuals and companies, including Clay Lacy Aviation, Oklahoma Jet Center, Capital Aviation and Aircraft Technical Service/Ventura Aerospace.[5]

Military operators[edit]

 Bahamas
 Bolivia
 Cambodia
 Ivory Coast
 New Zealand
 Nicaragua
 Pakistan
 Paraguay
 Philippines
 Rhodesia
 Sri Lanka
 Turkey
 Germany

Specifications (C 421C)[edit]

Data from Jane's All The World's Aircraft 1976–77 [7]

General characteristics

  • Crew: One or two
  • Capacity: Six passengers
  • Length: 36 ft 9⅝ in (11.09 m)
  • Wingspan: 41 ft 1½ in (12.53 m)
  • Height: 11 ft 5⅜ in (3.49 m)
  • Wing area: 215 ft² (19.97 m²)
  • Empty weight: 4,501 lb (2,041 kg)
  • Max. takeoff weight: 7,450 lb (3,379 kg)
  • Powerplant: 2 × Continental GTSIO-520-L turbocharged, fuel injected and geared six-cylinder horizontally-opposed air-cooled piston engine, 375 hp (280 kW) each

Performance

See also[edit]

Related development
Aircraft of comparable role, configuration and era

References[edit]

Notes
  1. ^ a b c Demand Media (2009). "The Cessna 421 & 414". Retrieved 2009-11-04. 
  2. ^ a b c d e Federal Aviation Administration (March 2007). "TYPE CERTIFICATE DATA SHEET NO. A7CE Revision 47". Retrieved 2009-11-05. 
  3. ^ a b c Taylor 1982, p. 455.
  4. ^ Taylor 1982, p. 352.
  5. ^ Niles, Russ (23 January 2013). "Pelton Leads 'Remanufacturing' Business". AVweb. Retrieved 24 January 2013. 
  6. ^ http://www.flightglobal.com/pdfarchive/view/2001/2001%20-%203767.html
  7. ^ Taylor 1976, pp. 272–273.
Bibliography

External links[edit]

Media related to Cessna 421 at Wikimedia Commons