Junkers Ju-86K

The Junkers Ju-86K, an export bomber variant of the German Ju-86, was primarily used by Sweden (designated B 3), Hungary, and South Africa during the late 1930s and World War II. It served as a medium bomber, reconnaissance aircraft, and maritime patrol plane in the European, African, and Eastern Front theaters, later serving as transport. 
 
Key Usage Areas and Operators:
Sweden (Flygvapnet): Acquired 40+ aircraft (designated B 3), using them for territorial defense and reconnaissance, with some converted to transports that lasted until 1958.
Hungary (Royal Hungarian Air Force): Operated 66 Ju-86K-2 bombers from 1938, using them in the 1939 Slovak–Hungarian War and on the Eastern Front until 1942.
South Africa (SAAF): Used Ju-86K-1 and converted civil models (Ju 86Z) for maritime patrol in the East Africa campaign.
Other Operators: The Ju-86K/export variants were also used by Austria, Chile, and Portugal. 
 
The Ju-86K was distinct from German Luftwaffe versions by utilizing radial engines (such as Pratt & Whitney or Bristol Pegasus) rather than diesel engines, providing better reliability in various operational environments.