• 
• 
• 

• 

At the end of the twenties several redesign projects were initiated at Junkers Flugzeugwerke for the replacement of early Junkers designs of the twenties. Several type numbers in the 50s range were allocated for these redesign studies.

The J54 design study was initiated by the Junkers sales departement in 1929, which had the demand for an improved Junkers A35/K53 military aircraft of 30% increased payload and range compared to the origin A35 design. Several design improvements for the A35 had already been performed with the Junkers J44 and Junkers J46 in 1927, which concentrated on engine selections.

Aside from new engine selections, i.e. Hispano Suiza, Renault, Bristol Jupiter VI, Mercury, Hornet or Siemens Sh20 with a final selection for the British Jaguar engine, the J54 changed the classic A25 cantilever monoplane design into a highlever monoplane.

At the same time the Junkers Ju52 was under developement and all Junkers developement capacity was put into the Ju52 project. Pohlmann's developement team was fully concentrated on the K47 and A50 designs as well and the J54 design was delayed for a possible first flight in September 1932. Due to the financial problems of Junkers Flugzeugwerke this project finally was cancelled without any mockup or prototype built ups in 1932.