The Bücker Bü 131 Jungmann, a German basic training aircraft, was predominantly utilised by the Luftwaffe during World War II.
As Bücker Flugzeugbau’s inaugural production model, the Bü 131A also holds the distinction of being the last biplane constructed in Germany.
Featuring tandem open cockpits and fixed landing gear, its fuselage was a steel tube structure sheathed in fabric and metal, while the wings were made of wood and fabric.
The aircraft’s maiden flight was powered by an 80 hp (60 kW) Hirth HM60R engine.
In 1936, it was succeeded by the Bü 131B, equipped with a more powerful 105 hp (78 kW) Hirth 504A-2 engine.
Aero in Prague carried out the majority of the Luftwaffe’s wartime production.
Variants
Bü 131A
A two-seat primary trainer biplane, the initial production model.
Bü 131B
Enhanced model, equipped with the more robust Hirth HM 504A-2 piston engine.
Bü 131C
An experimental version was equipped with a 90 hp (67 kW) Cirrus Minor piston engine.
The Japanese production model for the Imperial Japanese Navy was powered by the Hitachi GK4A Hatsukaze 11 engine.
Tatra T.131
Czechoslovakia engaged in pre-war licenced production at Tatra in Kopřivnice.
Aero C-4
Mass-produced at the Aero factory in occupied Czechoslovakia during the war, the aircraft retained the original Bücker Bü 131B designation and, post-war, continued to use the original Hirth engine.
Aero C-104
The Czechoslovak post-war development featured the Walter Minor 4-III engine, with a total of 260 units constructed.
CASA 1.131
The Spanish license-built versions were equipped with either a Hirth HM 504 or a 125 hp (93 kW) ENMA Tigre G-IVA engine.
BP 131
Licence-built version
SSH T-131P
The pre-production Polish variant was equipped with a 78 kW (105 hp) Walter Minor 4-III engine.
A total of four aircraft were constructed in the year 1994.
SSH T-131PA
The Polish production model, equipped with a 103 kW (138 hp) LOM M332AK engine, first took flight in 1995.
