Type
Engine
Dimensions Length 9,10 m , height  ,  span 13,62 m , wing area 34,2 m2  ,
Weights Empty , loaded  , max. take off weight  
Performance Max.. speed  , cruising speed  , range , endurance  , service ceiling   , climb
Armament
Type Werk.Nr Registration History
He 51 V5 994 D-IBAA Rebuilt with an enlarged wing
D D-IDOG Seaplane. Crashed during testing
In early 1936, Heinkel developed a high-altitude version of the Heinkel He 51 with a long-span, twin-bay biplane wingbox. The upper wing was extended to 13.8 meters, and the lower wing to 13.4 meters. With the standard fuselage of the Heinkel He 51 B, the aircraft received the designation B-3. Based on its testing results, two more aircraft were created: the Heinkel He 52 B (D-IBAA) and the Heinkel He 52 D (D-IDOG) with twin-float landing gear, which crashed early in testing. The high-altitude fighter was planned for production under the designation Heinkel He 52 E, but the Technical Department ultimately rejected it.