Arado Ar 64
The Ar 64 was a derivative of the earlier Arado SD II and Arado SD III, based upon the Reichswehrministerium's (Reich War Ministry) requirement for a successor to the Fokker D.XIII fighter. The AR 64D and 64E would the first fighters built in quantity by Germany since the end of World War I. The two differed as the 64D had a revised undercarriage and a four-blade propeller and the 64E had a two-blade propeller attached to a direct-drive version of the Jupiter VI radial engine. In the summer of 1932, 20 aircraft of both types were ordered and 19 of them were assigned to the Jagdfliegerschule at Schleissheim and the Jagdstaffeln of the Fliegergruppe Doberitz and Fliegergruppe Damm.
Type
A single seat fighter
B single seat fighter
C single seat fighter
D single seat fighter
E single seat fighter
Engine
1 Siemens Jupiter VIu
1 BMW  VI 6.3
1 Siemens Jupiter VIu
1 Siemens Jupiter VIu
1 Siemens Jupiter VIu
Dimensions
Length 7.82 m, height 3.56 m , span 9.90 m, wingarea 24.0 m2
Weights
Empty 1235 kg, flying weight
1705 kg 
Empty 1210 kg, flying
weight 1680 kg
Empty 1235 kg, flying weight 1705 kg 
Performance
Max. speed 250 km/h, climb to
1000 m 1.8 min., service ceiling
6800 m
Max. speed at 5000 m 250
km/h, cruising speed 210
km/h, service ceiling 6000
m
Max. speed 250 km/h, climb to 1000 m 1.8 min., service ceiling 6800 m
Armament
2 fixed forward firing MG 08/15