The Cessna 421 Golden Eagle is an American six or seven seat twin-engined light transport aircraft, developed in the 1960s by Cessna as a pressurized version of the earlier Cessna 411.[2]
The Cessna 421 was first produced in May 1967, the 1968 model year. It had "Stabila-Tip" fuel tanks on the wingtips (like the Cessna 310). Its electro-mechanical landing gear are similar to that of the 310. It was an immediate hit, selling 200 planes in its first year.[1]
The very next year, 1969, the design was refined, with a three-inch stretch of the fuselage, five more gallons of fuel capacity, and a 40-pound increase in gross weight. The plane was redesignated the Cessna 421A.[1]
In 1971, the design was again improved. Both empty and gross weight increased, the wingspan was increased by two feet, raising the service ceiling by 5,000 feet. The nose was stretched two feet to accommodate a larger nose baggage section. This new plane is designated the Cessna 421B.[1]
In 1975, the plane was offered with a package of equipment enabling flight into known icing conditions.[1]
In 1976, 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]
Some 421s have been modified to accept turboprop engines,[4] making them very similar to the Cessna 425, which itself is a turboprop development of the 421.[5]
Designedit
The 421 is an all-metal low-wing cabin monoplane with a retractable tricycle landing gear, and powered by two geared[a]Continental GTSIO-520-D engines, wing-mounted in tractor configuration. The cabin is accessed from a door, on the left hand side behind the wing, and has seating for six on the basic 421, or up to ten on later variants.
Variantsedit
Cessna 421B Golden Eagle with aftermarket RAM-modified enginesA Cessna 421B Golden Eagle, front viewA Cessna 421B Golden Eagle1982 Cessna 421C
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).[3] 200 built.[6]
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).[3] 158 built.[6]
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).[3] 699 built.[6]
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).[3] 859 built.[6]
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.[4]
Riley Turbine Eagle 421
Conversion of Cessna 421C aircraft by fitting two 750hp Pratt & Whitney Canada PT6A-135 turboprop engines. Formal designation R421CP.[4]
Excalibur 421
Re-engined 421C with Pratt & Whitney Canada PT6A-135A or PT6A-112 turboprops, supplemental type certificate held by Excalibur 421 LLC of Paso Robles, California.[7] In 2013 it was announced that Aviation Alliance are acting as program managers for the Excalibur 421 upgrade programme.[8]
Andrade, John (1982). Latin-American Military Aviation. Leicester, UK: Midland Counties Publications. ISBN0-904597-31-8.
Hagedorn, Daniel P. (1993). Central American and Caribbean Air Forces. Tonbridge, Kent, UK: Air-Britain (Historians) Ltd. ISBN0-85130-210-6.
Simpson, R.W. (1995). Airlife's general aviation : a guide to postwar general aviation manufacturers and their aircraft (2nd ed.). Shrewsbury: Airlife. ISBN978-1853105777.
Taylor, John W. R., ed. (1976). Jane's All the World's Aircraft 1976-77. London: Jane's Yearbooks. ISBN0-354-00538-3.
Taylor, John W. R., ed. (1982). Jane's All the World's Aircraft 1982-83. London: Jane's Publishing Company. ISBN978-0-7106-0748-5.
Taylor, John W. R., ed. (1988). Jane's All the World's Aircraft 1988-89. Coulsdon, UK: Jane's Defence Data. ISBN0-7106-0867-5.
External linksedit
Media related to Cessna 421 at Wikimedia Commons
April 15, 2024
cessna, golden, eagle, american, seven, seat, twin, engined, light, transport, aircraft, developed, 1960s, cessna, pressurized, version, earlier, cessna, cessna, 421b, landingrole, light, transportnational, origin, united, statesmanufacturer, cessnafirst, flig. The Cessna 421 Golden Eagle is an American six or seven seat twin engined light transport aircraft developed in the 1960s by Cessna as a pressurized version of the earlier Cessna 411 2 Cessna 421 Golden EagleCessna 421B landingRole Light transportNational origin United StatesManufacturer CessnaFirst flight October 14 1965Introduction 1968 1 Produced 1967 1985Number built 1916Developed from Cessna 411Developed into Cessna 425 Contents 1 Development 2 Design 3 Variants 4 Military operators 5 Specifications C 421C 6 See also 7 Notes 8 References 9 External linksDevelopment editThe Cessna 421 was first produced in May 1967 the 1968 model year It had Stabila Tip fuel tanks on the wingtips like the Cessna 310 Its electro mechanical landing gear are similar to that of the 310 It was an immediate hit selling 200 planes in its first year 1 The very next year 1969 the design was refined with a three inch stretch of the fuselage five more gallons of fuel capacity and a 40 pound increase in gross weight The plane was redesignated the Cessna 421A 1 In 1971 the design was again improved Both empty and gross weight increased the wingspan was increased by two feet raising the service ceiling by 5 000 feet The nose was stretched two feet to accommodate a larger nose baggage section This new plane is designated the Cessna 421B 1 In 1975 the plane was offered with a package of equipment enabling flight into known icing conditions 1 In 1976 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 421 was first certified on 1 May 1967 and shares a common type certificate with models 401 402 411 414 and 425 3 Some 421s have been modified to accept turboprop engines 4 making them very similar to the Cessna 425 which itself is a turboprop development of the 421 5 Design editThe 421 is an all metal low wing cabin monoplane with a retractable tricycle landing gear and powered by two geared a Continental GTSIO 520 D engines wing mounted in tractor configuration The cabin is accessed from a door on the left hand side behind the wing and has seating for six on the basic 421 or up to ten on later variants Variants edit nbsp Cessna 421B Golden Eagle with aftermarket RAM modified engines nbsp A Cessna 421B Golden Eagle front view nbsp A Cessna 421B Golden Eagle nbsp 1982 Cessna 421C421 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 3 200 built 6 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 3 158 built 6 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 3 699 built 6 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 3 859 built 6 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 4 Riley Turbine Eagle 421 Conversion of Cessna 421C aircraft by fitting two 750hp Pratt amp Whitney Canada PT6A 135 turboprop engines Formal designation R421CP 4 Excalibur 421 Re engined 421C with Pratt amp Whitney Canada PT6A 135A or PT6A 112 turboprops supplemental type certificate held by Excalibur 421 LLC of Paso Robles California 7 In 2013 it was announced that Aviation Alliance are acting as program managers for the Excalibur 421 upgrade programme 8 Advanced Aircraft Regent 1500 Production of the Riley Turbine Eagle 421 conversion by Advanced Aircraft Corporation 9 Military operators edit nbsp BahamasRoyal Bahamas Defence Force 10 nbsp BoliviaBolivian Air Force at least one 421B was in use 11 nbsp CambodiaRoyal Cambodian Air Force 12 nbsp Ivory CoastIvory Coast Air Force 13 nbsp New ZealandRoyal New Zealand Air Force three 421C 14 No 42 Squadron RNZAF nbsp PakistanPakistan Army at least one 421 in use 15 nbsp PhilippinesPhilippine Army One 421B in service 16 nbsp TurkeyTurkish Army Aviation at least three 421Bs in use 17 nbsp ZimbabweAir Force of Zimbabwe at least one 421A in use 18 Specifications C 421C edit nbsp 3 view line drawing of the Cessna 421 nbsp Cessna 421C Golden Eagle typical pilot s instrumentation nbsp Cessna 421C Golden Eagle typical copilot s instrumentation Data from Jane s All The World s Aircraft 1976 77 19 General characteristicsCrew One or two Capacity Six passengers Length 36 ft 4 5 8 in 11 09 m Wingspan 41 ft 1 1 2 in 12 53 m Height 11 ft 5 3 8 in 3 49 m Wing area 215 sq ft 20 0 m2 Empty weight 4 501 lb 2 042 kg Max takeoff weight 7 450 lb 3 379 kg Fuel capacity 206 US gal 172 imp gal 780 L normal usable capacity 262 US gal 218 imp gal 990 L with optional wing tanks Powerplant 2 Continental GTSIO 520 L turbocharged fuel injected and geared flat six engines 375 hp 280 kW each Propellers 3 bladed McCauley constant speed propellersPerformance Maximum speed 256 kn 295 mph 474 km h at 20 000 ft 6 100 m Cruise speed 240 kn 280 mph 440 km h at 25 000 ft 7 600 m 75 power Range 1 487 nmi 1 711 mi 2 754 km at 25 000 ft 7 600 m econ cruise speed Service ceiling 30 200 ft 9 200 m Rate of climb 1 940 ft min 9 9 m s Takeoff distance to 50 ft 15m 2 323 ft 708 m Landing distance from 50 ft 15 m 2 293 ft 699 m See also editRelated development Cessna 411 unpressurized predecessor to 421 Cessna 401 unpressurized smaller engine predecessor Cessna 402 unpressurized smaller engine predecessor Cessna 414 smaller engine variant of 421 Cessna 425 turboprop variant of 421 Aircraft of comparable role configuration and era Aero Commander 600 700 series Beechcraft Duke Beechcraft Queen Air Piper PA 31 Navajo Aero Commander 690 series Piper CheyenneNotes edit The gearing means that rather than the driveshaft being directly connected to the propeller it drives through a set of reduction gears References edit a b c d e f Aviation Consumer s Used Aircraft Guide Simpson 1995 pp 110 130 a b c d e Federal Aviation Administration March 2007 TYPE CERTIFICATE DATA SHEET NO A7CE Revision 47 Retrieved November 5 2009 a b c Taylor 1982 p 455 Taylor 1982 p 352 a b c d Simpson 1995 p 130 FAA Supplemental Type Certificate SA1361SO PDF rgl faa gov FAA Retrieved February 28 2015 The Aviation Alliance Announces First Product Offering Excalibur 421 www prnewswire com Press release Retrieved February 28 2015 Taylor 1988 p 321 Hagedorn 1993 p 140 Andrade 1982 p 27 Penney Stuart November 27 December 3 2001 World Air Forces 2001 Cambodia Flight International Vol 160 no 4808 p 39 Andrade 1982 p 126 Andrade 1982 p 165 Andrade 1982 p 174 Philippine Army welcomes back the return of Cessna 421B Golden Eagle Andrade 1982 p 229 Andrade 1982 p 346 Taylor 1976 pp 272 273 BibliographyAndrade John 1982 Latin American Military Aviation Leicester UK Midland Counties Publications ISBN 0 904597 31 8 Hagedorn Daniel P 1993 Central American and Caribbean Air Forces Tonbridge Kent UK Air Britain Historians Ltd ISBN 0 85130 210 6 Simpson R W 1995 Airlife s general aviation a guide to postwar general aviation manufacturers and their aircraft 2nd ed Shrewsbury Airlife ISBN 978 1853105777 Taylor John W R ed 1976 Jane s All the World s Aircraft 1976 77 London Jane s Yearbooks ISBN 0 354 00538 3 Taylor John W R ed 1982 Jane s All the World s Aircraft 1982 83 London Jane s Publishing Company ISBN 978 0 7106 0748 5 Taylor John W R ed 1988 Jane s All the World s Aircraft 1988 89 Coulsdon UK Jane s Defence Data ISBN 0 7106 0867 5 External links edit nbsp Media related to Cessna 421 at Wikimedia Commons Retrieved from https en wikipedia org w index php title Cessna 421 Golden Eagle amp oldid 1208006171, wikipedia, wiki, book, books, library,
