08/31/2012. Remarks by Johan Visschedijk: "Shortly after Henschel was founded in 1933, the design of a multi-purpose aircraft was started. The first prototype Hs 122 V1 appeared during the summer of 1935, and was fitted with a 660 hp Siemens SAM 22B air-cooled radial and a tree-bladed propeller with variable pitch. The second prototype Hs 122 V2 was powered by a 700 hp Rolls-Royce Kestrel IIS liquid-cooled engine, and later went to Rechlin for testing, registered as D-UBYN. This aircraft was also used as a demonstrator to foreign costumers.
Later on more prototypes were produced, all fitted with the SAM 22B radial. The Hs 122 V3, D-UDIZ, fitted with a Heine-Schwarz two-blade fixed pitch propeller on the SAM 22B, Iscania instruments, and with full military equipment, was the prototype of the small batch of seven Hs 122 A-0 pre-production aircraft.
The Hs 122 B-series would be equipped with other engines (Jumo 210, DB 600, and BMW 132), for which the prototypes Hs 122 V4 (D-UBAV and Hs 122 V5 (D-UQEY) would be the test beds/demonstrators, however, the Hs 122 B-series never materialized. The prototypes were all flown to Rechlin, and subsequently transferred to the Luftwaffe as trainers.
