Bucker Bü 131

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Bucker Bü 131 Jungmann
Buecker Jungmann.jpg
Type: Sports, training and training aircraft
Design country:

German Reich NSGerman Reich (Nazi era) German Empire

Manufacturer:

Bucker aircraft construction

First flight:

April 27, 1934

Number of pieces:

approx. 4200

CASA 1.131-E SERIES 2000
Tatra T-131 (YOC 1936)
Aero C-104 S.
Kokusai Ki-86A, 1945
Polish Jungmann replica by Serwis Samolotów Historycznych
Bücker Jungmann with Lycoming engine

The Bücker Bü 131 Jungmann was the first aircraft from the aircraft manufacturer Bücker Flugzeugbau . The first flight took place on April 27, 1934. The designer was the Swede Anders J. Anderson . It was used at flight schools and in the newly created air force , where it became one of the standard training aircraft.

3000 units were produced in Germany, in total (including licensed buildings) around 5000 machines were produced. The construction of the single-seat Bücker Bü 133 Jungmeister was largely based on the Bü 131 Jungmann.

Versions

  • Bü 131 V-1 : prototype with engine Hirth HM 60 R (80 PS)
  • Bü 131 A : Original series version with engine Hirth HM 60 R (80 HP)
  • Bü 131 B : Improved version with the more powerful Hirth-HM-504-A-2 engine (105 PS)
  • Bü 131 C : single piece with Cirrus-Moth in-line engine (90 HP)
  • Bü 131 D : Replaced the B version from 1938. Externally differs in that it has a larger tail wheel. Motor Hirth HM 504 A-2 (105 HP)

production

The Bücker 131 was built in series by Bücker, Aero in Prague and Sta (name abbreviation unknown).

Construction figures for the Bücker 131:

Type 1934 1935 1936 1937 1938 1939 1940 1941 1942 total
Bu 131 6th 65 221 194 201 462 640 105 8th 1902

In the RLM order, 223 with the motor HM 60 (A series) and 1356 with the motor HM 504 (B and D series), together 1579 Bü 131, were delivered. The production amounted to 200 Bü 131 at Aero and 15 at Sta, the rest at Bücker.

Switzerland flew a total of 84 Bü 131s, three of which were imports, i.e. 81 licensed buildings from Dornier, Altenrhein. CASA in Spain built 555 Bü 131 under license. Japanese production was 1037 Ki-86A and 339 K9W1. Aero built 248 C-104s in the post-war period. Production at Tatra cannot be precisely determined. 35 aircraft have been ordered, eleven have been approved and another five have not been approved. So production of around 16 T-131s can be assumed. Thus the total production of the Bü 131 was around 4200 copies.

Exports

A distribution series for 97 Bü 131 was launched. The remaining exports are taken from the RLM series.

Exports of the Bückers Bü 131:

country 1936 1937 1938 1939 1940 1941 1942 total
Hungary 20th 17th 1 39 40 101 26th 244
Portugal 2 1           3
Romania 6th 4th 3 11       24
South Africa 2 7th 5 2       16
Uruguay 1     1       2
Brazil   2 3 9       14th
Switzerland   3           3
Finland   1 1         2
Spain   28 25th   40     93
Japan   5   14th       19th
Sweden     3 1       4th
Bulgaria     12         12
Chile       1       1
Dutch East Indies       6th       6th
Croatia           10   10
TOTAL 31 68 53 84 80 111 26th 453

The Bücker annual report mentions further exports up to 1938: Austria 2, Netherlands 1, Yugoslavia 1, Poland 1, ČSR 1, China 1, Manchukuo 5 and 10 private domestic sales.

commitment

  • German Reich NSGerman Reich (Nazi era) German Empire  :
  • GermanyGermany Germany  :
  • FinlandFinland Finland  :
  • JapanJapan Japan  : In Japan, the Bü 131 was built under license and used as the Kokusai Ki 86 and Kyūshū K9W1.
  • CroatiaCroatia Croatia  :
  • NetherlandsNetherlands Netherlands  :
  • RomaniaRomania Romania  :
  • SwedenSweden Sweden  :
  • SwitzerlandSwitzerland Switzerland  : In the service of the Swiss Air Force from 1936 to 1971 (Swiss licensed buildings, manufactured by Dornier Altenrhein).
  • SpainSpain Spain  :
  • South AfricaSouth Africa South Africa  :
  • CzechoslovakiaCzechoslovakia Czechoslovakia  : In the post-war period, former German machines were used, but also replicas.
  • HungaryHungary Hungary  :

Technical data (Bü 131 B)

Parameter Data
crew 1-2
span 7.40 m
length 6.62 m
height 2.25 m
Wing area 13.50 m²
Empty mass 380 kg
Max. Takeoff mass 680 kg
Engine an in- line engine Hirth HM 504 A-2 , 105 PS (77 kW)
Take-off run 130-140 m (depending on the source)
Landing runway 120-135 m (depending on the source)
Top speed 183 km / h near the ground
Cruising speed 170 km / h
maximum permissible speed 350 km / h
Minimum speed 82 km / h
Max. Climbing performance close to the ground 3.2-3.8 m / s (depending on the source)
Service ceiling 3000 m
Range 400 km

Today's distribution and replicas

Because of the large numbers produced and its widespread use as a military training aircraft, the Jungmann is one of the most popular vintage vehicles today. But since there are hardly any spare parts left for the original engine, some of them were equipped with a Lycoming boxer engine. As a result, these aircraft were saved from decommissioning, but the wider engine cowling ( cowling ) that became necessary due to the conversion largely destroyed the elegant lines of the aircraft.

The Polish aircraft manufacturer Serwis Samolotów Historycznych in Jasienica built the Bücker Bü 131 Jungmann true to the original from 1994. After the death of the company's founder Janusz Karasiewicz in an accident involving an ultralight aircraft, production was stopped again in 2006.

The Polish company Air Res Aviation in Rzeszów has resumed production of the Jungmann , thus continuing the work of Janusz Karasiewic. The first machine with a Czech LOM M332 AK engine was completed in 2012, with more to follow.

The manufacturer B&F Technik FK Leichtflugzeuge Speyer , in cooperation with the Czech company Podešva Air, produces replicas of the Bücker 131 Jungmann with a Walter Mikron III C UL engine, which are to be approved as ultralight aircraft .

See also

List of aircraft types

Web links

Commons : Bücker Bü 131  - Collection of images, videos and audio files

Individual evidence

  1. ^ Federal Archives / Military Archives Freiburg, RL 3: Production programs and takeovers by the Air Force; Monthly production 1931 to 1940
  2. ↑ Funds from the Swiss Air Force
  3. ^ Es : Construcciones Aeronáuticas SA .
  4. ↑ https://www.valka.cz/Tatra-T-131-t8872
  5. ^ Federal Archives / Military Archives Freiburg, RL 3: Export of aircraft to friendly and allied countries 1936 to 1942; Bundesarchiv Berlin: Bückers Flugzeugbau, annual report for the years 1933 to 1938
  6. ↑ http://www.airhistory.org.uk/gy/reg_ZS-1.html
  7. ↑ a b c Tincopa, Amaru: Axis Aircraft in Latin America, o. O. 2016, p. 301 f.
  8. ↑ http://www.airhistory.org.uk/gy/reg_PK-.html
  9. ^ Homepage of Historical Aircraft, Jasenieca http://www.planeclassic.com/ ( Memento from January 31, 2009 in the Internet Archive )
  10. ↑ Information about the Jungmann replica ( memento from January 2, 2013 in the Internet Archive ) on the Air Res Aviation website, accessed on January 6, 2013
  11. ↑ Magazine fliegermagazin , issue 07/2013, page 85
  12. ↑ Press release on the first flight of the B&F FK131 (PDF; 1 MB), accessed on January 6, 2013