Bü 131 Jungmann @·AIRCRAFTUBE

  • Bücker Bü 131 Jungmann Bücker Bü 131 Jungmann
    Bücker Bü 131 Jungmann
  • Bücker Bü 131 Jungmann Bücker Bü 131 Jungmann
    Bücker Bü 131 Jungmann
  • Bücker 131<br>Jungmann Bücker 131<br>Jungmann
    Bücker 131
    Jungmann
  • CASA 1.131E Jungmann CASA 1.131E Jungmann
    CASA 1.131E Jungmann
  • Jungmann - Lycoming Power Jungmann - Lycoming Power
    Jungmann - Lycoming Power
  • Bü 131 Jungmann<br>Old Warden Bü 131 Jungmann<br>Old Warden
    Bü 131 Jungmann
    Old Warden
  • Kokusai Ki-86A trainer - 1945 Kokusai Ki-86A trainer - 1945
    Kokusai Ki-86A trainer - 1945
  • Bücker Bü 131 Jungmann<br>Shuttleworth Collection Bücker Bü 131 Jungmann<br>Shuttleworth Collection
    Bücker Bü 131 Jungmann
    Shuttleworth Collection
  • Bü 131B Jungmann Bü 131B Jungmann
    Bü 131B Jungmann
  • Bü 131B Jungmann - Swiss Air Force Bü 131B Jungmann - Swiss Air Force
    Bü 131B Jungmann - Swiss Air Force
  • CASA 1.131 Jungmann del Ejercito del Aire de Espana CASA 1.131 Jungmann del Ejercito del Aire de Espana
    CASA 1.131 Jungmann del Ejercito del Aire de Espana

Bücker Bü 131 Jungmann

After serving in the German Navy in World War I, Carl Bücker moved to Sweden where he became managing director of Svenska Aero A.B. (SAAB). He later returned to Germany with Anders Anderson , a young designer from SAAB. "Bücker Flugzeugbau GmbH" was founded in Berlin in 1932, with the first aircraft to see production being the Bü 131 Jungmann.

Bücker Flugzeugbau's first production type, the Bü 131A was the last biplane built in Germany. It had two open cockpits in tandem and fixed landing gear. The fuselage was steel tube, covered in fabric and metal, the wings wood and fabric. It first flew on the 80 hp (60 kW) Hirth HM60R. In 1936, it was followed by the Bü 131B, with a 105 hp (78 kW) Hirth 504A-2. Most wartime production for the Luftwaffe was by Aero in Prague.

Operational history

Sturdy and agile, the Bü 131A was first delivered to the Deutscher Luftsportverband (DLV). The Bü 131B was selected as the primary basic trainer for the German Luftwaffe, and it served with "virtually all" the Luftwaffe's primary flying schools during the war, as well as with night harassment units such as Nachtschlacht Gruppen (NSGr) 2, 11, and 12. Yugoslavia was the main prewar export customer; "as many as 400 may have found their way" there. She was joined by Bulgaria with 15 and Rumania with 40.

Production licenses were granted to Switzerland (using 94, 88 built under licence to Dornier), Spain (building about 530), Hungary (which operated 315), Czechoslovakia (10, as the Tatra T 131, before war began), and Japan, the last of which built 1,037 for Army with Hatsukaze power as the Kokusai Ki-86 and 339 for the Navy Air Services as the Kyushu K9W. In Spain, production continued at CASA until the early 1960s. The Jungmann was retained as the Spanish Air Force's primary basic trainer until 1968.

In the 1960s and early 70s the Spanish, Swiss and Czech governments sold their Jungmanns to private owners many being exported to the United States. About 200 Jungmanns survive to this day, many having been fitted with modern Lycoming O-320 (150 hp) or O-360 (180 hp) four cylinder engins with inverted fuel and oil systems for aerobatic flight.

Current owners and pilots prize the Jungmann for its outstanding handling characteristics when compared to other antique bi-planes and even more modern aerobatic types. Up keep and maintenance for the Jungmann is comparable to other antique aircraft and is superior when fitted with the Lycoming engines. Airframe parts are available from several sources both in the United States and Europe.

In 1994, the Bü 131 was restored to production briefly using CASA jigs by Bücker Prado in Spain, with 21 aircraft constructed as the BP 131, while SSH Janusz Karasiewicz in Poland also started production of a version of the Jungmann based on Czech plans in 1994.

Variants

  • Bü 131A : Two-seat primary trainer biplane. Initial production version.
  • Bü 131B : Improved version, powered by the more powerful Hirth HM 504A-2 piston engine.
  • Bü 131C : Experimental version, fitted with 67 kW (90 hp) Cirrus Minor piston engine. One built.
  • Nippon Kokusai Ki-86A Army Type 4 Primary Trainer : Japanese production version for the Imperial Japanese Army Air Service. Powered by a Hitachi Ha-47
  • Nippon Kokusai Ki-86B Army Type 4 Primary Trainer : Wooden airframe version to relieve scarce supplies of strategic materials.
  • Kyushu K9W1 Momiji Navy Type 2 Trainer Model 11 : Japanese production version for the Imperial Japanese Navy. Powered by the Hitachi GK4A Hatsukaze 11
  • Tatra T.131 : Czechoslovakia, pre-war licence production in Tatra Kopřivnice.
  • Aero C-4 : Mass-produced in Aero factory in occupied Czechoslovakia during wartime under original Bücker Bü 131B designation, used postwar with original Hirth engine.
  • Aero C-104 : Czechoslovakia, postwar development with a Walter Minor 4-III engine, 260 built.
  • CASA 1.131 : Spanish license-built versions
  • BP 131 : modern license-built version
  • SSH T-131P : Pre-production modern Polish version, powered by 78 kW (105 hp) Walter Minor 4-III engine. Four built from 1994.[2]
  • SSH T-131PA : Main Polish production version, with 103 kW (138 hp) LOM M332AK engine. First flew 1995.

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This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Bücker Bü 131 of Wikipedia ( authors )

Specifications (Bü 131B)

  • Crew : Two (student and instructor).
  • Length : 6.62 m (or 21 ft 8 in).
  • Height : 2.35 m (or 7 ft 6 in).
  • Wingspan : 7.40 m (or 24 ft 3 in).
  • Wing area : 13.5 sq m (or 145 sq ft).
  • Wing loading : 46.3 kg/m² (or 9.49 lb/ft²).
  • Empty weight : 380 kg (or 840 lbs).
  • Loaded weight : 670 kg (or 1,500 lbs).
  • Maximum speed : 183 km/h (or 99 kts, or 115 mph).
  • Cruise speed : 170 km/h (or 92 kts, or 110 mph).
  • Range : 628 km (or 339 nm, or 390 mi).
  • Service ceiling : 4,050 m (or 13,300 ft).
  • Rate of climb : 2.8 m/s (or 6,600 ft).
  • Powerplant : 1 Hirth HM 504 four-cylinder inverted straight engine, 70 kW (or 100 hp).

— — — = = — — —

This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Bücker Bü 131 of Wikipedia ( authors )
Bücker Bü 131 Jungmann : Your comments on this subject
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