Henschel Hs 122
Type
V1
V2
V3, A-0, A-1
Engine
1  Siemens Sh 22B
1 Rolls-Royce Kestrel II S
1  Siemens Sh 22B
Dimensions
   
Length 10.1 m, height 3,4 m, span 14,5 m,
wing area 34,7 m2
Weights
   
Empty 1650 kg, flying weight 2530 kg
Performance
   
Max. speed 265 km/h, range 600 km,
endurance 2,6 h, service ceiling 6600 m, climb
6,4 m/sec. to 1000 m
Armament
None
None
A-1)1 7.92 mm  MG 17 machine gun firing
forward
1 7.92 mm  MG 15 machine gun on mounting in
rear cockpit
The Hs 122 was the Henschel company's second aircraft, its first, the Hs 121 not being intended for production. It was designed in response to a Reich Air Ministry call for a multi-role army co-operation aircraft to replace the ageing Heinkel He 46.
The design emerged as a single-engine two-seat parasol wing machine with a fixed undercarriage. The wing centre section was carried above the fuselage on a series of short struts and the swept outer sections were braced to the lower fuselage with V struts. The wings were built around two metal spars and had metal-covered leading edges and upper surfaces with fabric elsewhere. The fuselage was an elliptical metal monocoque, with a metal-structured tail also metal covered apart from fabric control surfaces. The tailplane was mounted about halfway up the fin, supported by a parallel pair of struts. The spatted mainwheels were each mounted on V struts to the fuselage. The cockpits were open, with the pilot sitting below a cut-out in the wing trailing edge and the second crew member in a separate cockpit aft.

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.
There were proposals for using  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 it never materialized. The prototypes were all flown to Rechlin, and subsequently transferred to the Luftwaffe as trainers. The same happened to the remaining Hs 122s, including Hs 122 V6 (D-IUGY), the armed reconnaissance prototype which had a camera and a flexible 0.311 in (7.9 mm) MG-15 machinegun fitted in the observer/gunner position.