From Wiki.
The FW-189 Owl also had a similar tail wheel arrangement, but was also retractable on top of that. Mind you, it was also a much litghter plane.
Quote:
Like all Fokker aircraft of the period, the G.I was of mixed construction; the front of the central pod and the tail booms were built around a welded frame, covered with aluminium plating. The back of the central pod, however, as well as the wings, had a wooden frame, covered with triplex, a technique also used in Fokker's successful passenger aircraft at that time.[3]
The G.I prototype powered by 485 kW (650 hp) Hispano-Suiza 14AB-02/03 engines had its first flight at Welschap, Eindhoven on 16 March 1937 with Karel Toman-Mares at the controls.[4] (Later, Emil Meinecke took over much of the test flights.)[5]The maiden flight went well, but a subsequent test flight in September 1937 ended with a supercharger explosion that nearly caused the loss of the prototype. [5] The accident prompted a replacement of the Hispano-Suiza engines with 559 kW (750 hp) Pratt & Whitney SB4-G Twin Wasp Junior engines.