The CASA I.131E Jungmann two-seat biplane is a trainer evolved from the license built Bücker
Bü.131A Jungmann. Bücker Flugzeugbau was founded by Carl Bücker in 1932. Their first design was
the Bü.131A Jungmann powered by a 4 cylinder Hirth in line engine. The prototype "D-3150"
flew first 27 April 1934. The Jungmann was ordered by the Deutsche Luftsport Verband and used as a
trainer for the Luftwaffe. The Bü.131 was built under license in Japan, Switzerland, Czechoslovakia and Spain.
In Spain production started 1938 and the CASA I-131 remained in production with the Construcciones
Aeronàuticas Sociedad Anonima (C.A.S.A.) till the end of the fifties.
C.A.S.A. I.131-E Jungmann c/n 2194 was original built in 1957 for the Ejército del Aire Español - Spanish Air Force - and registered E.3B-574.
The aircraft was fitted by CASA with an ENMA Tigre G-IV-Ax engine. In service with the Spanish Air Force the Jungmann was used as a training aircraft.
After being withdrawn from service in the Spanish Air Force the aircraft was registered I-OPEF with Maurizio Steffanini in Novara, Italy.
On 22 July 2011, registration I-OPEF was cancelled as exported to Germany and the Jungmann was registered D-EJMI. CASA I.131E Jungmann D-EJMI is operated
in the Spanish Air Force colours as E-3B-574 '781-34' and is based at Flugplatz Oldenburg-Hatten.