The Arado Ar 65 was the single-seat biplane fighter successor to the Ar 64. Both looked very similar. The only major difference was the use of the 12-cylinder inline versus the 64's radial. The wingspan was also increased.
The Ar 65 appeared in 1931 and six models were built. The first three 65a-c were the prototypes while the 65d-f were the production models. The Ar 65d was delivered in 1933 and served alongside the Ar 64 in the two fighter groups - Fliegergruppe Döberitz and Fliegergruppe Damm. In 1935, the Ar 65 was reduced to a training aircraft. Production of the fighter was discontinued in 1936.
But the next year, 12 of them were presented to Germany's ally - the Royal Bulgarian Air Force. The final production total was 85 aircraft.
General characteristics Ar 65E
Length: 8.4011 m
Wingspan: 11.20 m
Height: 3.4227 m
Wing area: 23 m2
Empty weight: 1,510 kg
Gross weight: 1,930 kg
Powerplant: 1 × BMW VI 7.3 liquid-cooled V-12 piston engine, 560 kW (750 hp)
for take-off, 372.85 kW (500 hp) continuous maximum power
Maximum speed: 300 km/h at 1,650 m
Cruising speed: 246 km/h at 1,400 m
Service ceiling: 7,600 m
Rate of climb: 10.60 m/s
Time to altitude: 1,000 m, in 1.5 minutes 5,000 m in 10.6 minutes
Guns: 2 × 7.92 mm MG 17 machine guns with 500 rpg.