Type He 64b  Single seat sportplane
Engine 1  Argus As 8R
Dimensions Length  8,32 m, height 2,06 m ,  span  9,80 m, wing area   ,
Weights Empty 470 kg, loaded  , max. take off weight 780 kg 
Performance Max.. speed 245 km/h at sea level , cruising speed 222 km/h at sea level , stall speed  63 km/h,  range 1500 km, endurance  , service ceiling  6000 m , climb
Type Werk.Nr Registration History
a 404 D-2258 Crashed fatally 29,04.1932. , pilot killed
b 409 D-2260 12.1933 to DVS
c 423 D-2303, D-EDOT 1933 to E.Stelle Staaken, Rechlin. Out of service 10.1936
c 424 D-2303
c 425 D-2301 10.1932 to DVL. Out of service 10.1936
c 426 D-2302, I-AERO 21.9.33 ti Italy
c 427 D-2305, G-ACBC, VP-YBI 12.1932 to UK, to RAF 7.1933 as K3596, In dec.1935 as G-ACBC. 01.1927 to Rhodesia, Crashed 1951
He 64a
The prototype of the He 64 family.
He 64b
Initial production version
He 64c
Later production offering a variety of powerplants, including the de Havilland Gipsy III, Hirth HM 504A-2 and Hirth HM 506
He 64d
Two examples of a high speed version were built, powered by the standard Argus As 8R but with elliptical planform wings similar to those fitted to the He 70 and no Handley Page slats. The maximum speed was increased to 290 km/h  ???