page_title: Bücker Bü 131
section_title: Variants
hierarchical_section_title: Bücker Bü 131 / Variants
caption_attribution_description: English: Lycoming Powered Bucker Jungmanns
context_page_description: The Bücker Bü 131 "Jungmann" was a German 1930s basic training aircraft which was used by the Luftwaffe during World War II.
context_section_description: 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 90 hp (67 kW) 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 Ha47
  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.
  SSH T-131PA
  Main Polish production version, with 103 kW (138 hp) LOM M332AK engine. First flew 1995.
caption: Lycoming-powered Bü 131s in the US
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