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Junkers W 34

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1926 airliner family
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W 34
Canadian Airways CF-ARI
General information
TypeTransport
ManufacturerJunkers
Designer
Hermann Pohlmann[1]
History
Introduction date1926
Developed fromJunkers W 33
Developed intoJunkers Ju 46

TheJunkers W 34 was aGerman-built, single-engine, passenger and transport aircraft. Developed in the 1920s, it was taken into service in 1926. The passenger version could take a pilot and five passengers.

The aircraft was developed from theJunkers W 33, noted for being a record-breaking aircraft. Further development led to theJunkers Ju 46, a catapult-launched seaplane for naval use.

Production and service

[edit]
Junkers W 34 in 1929. with Willi Neuenhofen

One Junkers W 34 be/b3e managed to break the then-current altitude record on 26 May 1929 when it reached 12,739 meters (41,795 feet). That aircraft carried the markings D-1119 and it was equipped with aBristol Jupiter VII engine. The airplane was flown byWilli Neuenhofen.

The Junkers W 34 was manufactured in many different versions. The total production numbers for the civil market were around 1,000, a further 2,024his andhaus were built under license for theRLM andLuftwaffe. The unit price was betweenRM 65,000 and 70,400.

On 31 January 1944 theLuftwaffe still had 618 W 34hi's and 516 W 34haus in service: the majority were used byflight schools; mainly as navigator[2] and radio operator training (3 or 4 navigator or radio-operator trainees).

The Junkers K.43, nicknamed the "Bush Bomber", was used extensively during theChaco War (1932–1935) fought betweenBolivia andParaguay. See external links.

TheColombian Air Force used the W 34 and K-43 in theColombia-Peru War in 1932–3.[3]

TheSwedish Air Force operated three W 33/34 between 1933 and 1953 in the transport and air ambulance roles, initially with the military designation Trp 2 and Trp 2A, eventually changed to Tp 2 and Tp 2A. One of these is preserved today in civilian colors as SE-BYA.

In 1930 theFinnish Air Force bought a single W 34 (JU-122) for maritime operations and six K 43s (JU-123 – JU-128) for use as light bombers, during theContinuation war the planes were used as transports, evacuating wounded and supplyingLong-Range Recon Patrols behind enemy lines. An additional five W 34s were bought in 1944 for radio navigation training (JU-131 – 135). After the war theFinnish Border Guard operated the remaining planes until 1950.

Finnish K 43s in Kiestinki, May 1942

Production

[edit]
W 34hi
Junkers (105 aircraft built), Henschel (430), ATG (94), Dornier Wismar (58), HFB (69) and Weser (221).
W 34hau
Henschel (329), Arado Brandenburg (205), ATG (105), Dornier Wismar (93), HFB (192) and MIAG Braunschweig (73).

Variants

[edit]
W 34 of Canadian Airways, floatplane version
W 34 a
331 kWGnome et Rhône 9A Jupiter engine, speed: 190 km/h, wingspan: 17.75 m and length 11.10 m
W 34 be
375 kWGnome et Rhône 9A Jupiter engine, speed: 230 km/h, wingspan: 17.75 m, length: 10.70 m
W 34 be/b3e
441 kWBristol Jupiter VII engine and was used for attempts to try breaking the world altitude record
W 34 ci
405 kWPratt & Whitney Hornet engine, speed: 245 km/h, equipped with cabin windows
W 34 di
like the W 34 ci, the engine was license produced by BMW.
W 34 f
331 kWGnome et Rhône 9A Jupiter engine, speed 190 km/h, wingspan 18.48 m, length 11.10 m, enclosed cockpit, ailerons were lengthened; the export version had a cargo door
W 34 f
experimental aircraft with floats
W 34 fa
passenger aircraft for export
W 34 fä
export aircraft
W 34 fo
export aircraft with aPratt & Whitney R-1340 engine
W 34 fy
Armstrong Siddeley Panther engine
W 34 fao
397 kWSiemens-Halske Sh 20 engine, only one was produced for tests with autopilot
W 34 fei
441 kWSiemens-Halske Sh 20U engine, only one was produced as a maritime test aircraft
W 34 fg
Armstrong Siddeley Jaguar Major engine
W 34 fue
Pratt & Whitney Hornet engine, later rebuilt as a maritime aircraft.
W 34 fi
Pratt & Whitney or BMW built 405 kW Hornet; wingspan: 18.48 m, length 10.27 m, speed 260 km/h. The aircraft had an enclosed cockpit and low-pressure tires.
W 34 gi
405 kWBMW Hornet, only one machine was produced in 1933 for tests
W 34 hi
485 kWBMW 132A/E, the aircraft could take six passengers and was equipped with improved radio- and direction finders. This version was mostly used by Luftwaffe to train pilots and radio operators.
W 34 hau
similar tohi, but it had a 526 kWBramo 322 H engine. The type was mostly used by Luftwaffe to train its pilots and radio operators.
K 43
Military W34, available in many of the above-mentioned versions.

Operators

[edit]
Junkers W 34 f/fi inCanada Aviation and Space Museum
Junkers W34h of the Colombian Air Force now on display
Swedish Junkers W 34 SE-BYA was flown by the Swedish Air Force 1933–1953 as the Trp 2A and Tp 2A ambulance aircraft. Stockholm Arlanda March 1968.
 Argentina
 Australia
 Bolivia
 Brazil
 Bulgaria
Canada
 Chile
 China
 Colombia
Independent State of Croatia
 Czechoslovakia
 Finland
Germany
 Norway
 Papua New Guinea
 Portugal
 Romania
Slovakia
SpainSpanish State
 Sweden
South Africa
 Venezuela

Accidents and incidents

[edit]
  • 3 May 1934 (1934-05-03):aSyndicato Condor Junkers W-34, registration PP-CAR, crashed on landing atRio de Janeiro, Brazil. Two crew members died. The plane was repaired and later suffered a second accident in 1944.[7]
  • 24 February 1941:a Junkers W-34 operated by theLuftwaffe crashed shortly after takeoff fromParis-Le Bourget Airport, France. The passenger, Vice AdmiralLothar von Arnauld de la Perière, was killed; the three crew members were injured.[8]
  • 24 February 1942 (1942-02-24):a Syndicato Condor Junkers W-34, registration P-BAOA/PP-CAO, crashed while attempting an emergency landing at Riachão,Maranhão. Two crew members died.[7]
  • 16 April 1944 (1944-04-16):PP-CAR, the same Junkers W-34 involved in the 1934 accident, this time operating forCruzeiro do Sul, crashed during an emergency landing at Rio de JaneiroSantos Dumont Airport. Two crew members died.[7]

Specifications (W 34he landplane)

[edit]

Data from Die Deutsche Luftrüstung 1933–1945 Vol.3 – Flugzeugtypen Henschel-Messerschmitt,[9] Junkers aircraft and engines, 1913-1945,[10] German aircraft of the Second World War,[11] German Combat Aircraft[12]

General characteristics

  • Crew: 2
  • Capacity: 6 passengers
  • Length: 10.27 m (33 ft 8 in)
  • Wingspan: 18.48 m (60 ft 8 in)
  • Height: 3.53 m (11 ft 7 in)
  • Wing area: 44 m2 (470 sq ft)
  • Empty weight: 1,700 kg (3,748 lb)
  • Gross weight: 3,200 kg (7,055 lb)
  • Fuel capacity: 477 L (126 US gal; 105 imp gal)
  • Powerplant: 1 ×BMW 132A 9-cylinder air-cooled radial piston engine, 480 kW (650 hp) (660 PS)
  • Propellers: 2-bladed metal fixed-pitch propeller, 3.1 m (10 ft 2 in) diameter

Performance

  • Maximum speed: 265 km/h (165 mph, 143 kn) at sea level
  • Cruise speed: 233 km/h (145 mph, 126 kn)
  • Landing speed: 116 km/h (72 mph; 63 kn)
  • Range: 900 km (560 mi, 490 nmi)
  • Service ceiling: 6,300 m (20,700 ft)
  • Rate of climb: 5.25 m/s (1,033 ft/min)
  • Time to altitude: 1,000 m (3,300 ft) in 3 minute 12 seconds

Armament

  • 2 x 7.92 mm (0.312 in) machine guns (dorsal) and 1 x 7.92 mm (0.312 in) machine gun (ventral)
  • 6 x 50 kg (110 lb) bombs (300 Kg total)

References

[edit]
  1. ^Zoeller, Horst."Junkers – Who is Who?". Archived fromthe original on October 27, 2009. Retrieved2016-06-22.
  2. ^Sinnhuber 2012, p. 59.
  3. ^von Rauch, Georg (December 1984). "A South American Air War...The Leticia Conflict".Air Enthusiast (26):1–8.ISSN 0143-5450.
  4. ^"Historia y Arqueologia Marítima : AVIONES DE ENTRENAMIENTO DE LA AVIACION NAVAL " JUNKERS W-34 "".histarmar (in Spanish). Buenos Aires. Retrieved26 April 2019.
  5. ^Grant, Robert S. (March 2004). "Metal Marvels: Junkers W33s and W34s in the Canadian Bush".Air Enthusiast (110). Stamford Lincs, UK:70–75.ISSN 0143-5450.
  6. ^Dan Antoniu (2014).Illustrated History of Romanian Aeronautics. p. 230.ISBN 978-973-0-17209-6.
  7. ^abcPereira, Aldo (1987).Breve história da aviação comercial brasileira (in Portuguese). Rio de Janeiro: Europa Empresa Gráfica e Editora. p. 131.
  8. ^"Paris-Le Bourget | Bureau of Aircraft Accidents Archives".www.baaa-acro.com. Retrieved2026-01-03.
  9. ^Nowarra, Heinz J. (1993).Die Deutsche Luftrüstung 1933–1945 Vol.3 – Flugzeugtypen Henschel-Messerschmitt (in German). Koblenz: Bernard & Graefe Verlag. pp. 53,262–263.ISBN 978-3-7637-5467-0.
  10. ^Kay, Anthony L. (2004).Junkers aircraft and engines, 1913-1945 (1st ed.). London: Putnam Aeronautical Books. pp. 190–197.ISBN 0851779859.
  11. ^Smith, J.R.; Kay, Anthony L. (1990).German aircraft of the Second World War (7th impression ed.). London: Putnam. pp. 185–186.ISBN 0851778364.
  12. ^Wagner, Ray; Nowarra, Heinz J. (1971).German Combat Aircraft. New York: Doubleday.

Bibliography

[edit]
  • Munson, Kenneth (1978).German Aircraft Of World War 2 in colour. Poole, Dorset, UK: Blandford Press.ISBN 0-7137-0860-3.

Further reading

[edit]
  • Andersson, Lennart. "Chinese 'Junks': Junkers Aircraft Exports to China 1925-1940".Air Enthusiast, No. 55, Autumn 1994, pp. 2–7.ISSN 0143-5450
  • Cicalesi, Juan Carlos; Rivas, Santiago (2009). Núñez Padin, Jorge Felix (ed.).Junkers F13 / W34 / K43 / Ju52. Serie en Argentina (in Spanish). Vol. 3. Bahía Blanca, Argentina: Fuerzas Aeronavales.ISBN 978-987-20557-7-6. Archived fromthe original on 2015-09-24. Retrieved2015-01-27.
  • Sinnhuber, Karl (2012).Salzburg To Stalingrad. UK: Milton Keynes.ISBN 978-1-471-70222-8.

External links

[edit]
Wikimedia Commons has media related toJunkers W 34.
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