Jupiter 9 cyl. radial
2 - 7.9 mm
Arado Ar 64 series aircraft were the first fighter aircraft to go into production in Germany after WW1.
The Arado Ar 64 was a biplane with a lower wing smaller than its upper wing. They had a fuselage frame made from steel tubing with fabric covering, and fabric covered wings made from wood.
The first Ar 64 aircraft were powered by radial engines. The first prototype used a Jupiter VI engine putting out some 530 hp. It turned a four bladed propeller made by bolting a pair of two bladed props together, one in front of the other.
Two initial prototype aircraft were flight tested. They flew in competition with the Fokker and Heinkel aircraft. They tested sufficiently well to be approved for mass production.
Two Arado Ar 64 b prototype fighters were produced using a BMW VI engine producing 640 hp. The engine had 12 cylinders in a V configuration.
Three Arado Ar 64 c prototype fighter aircraft were built. These used the 530 hp radial engine, but had some minor structural differences from prior designs.
Arado Ar 64 d aircraft used a conventional four bladed propeller driven by a geared Jupiter VI radial engine, stronger landing gear, and a larger vertical stabilizer. Four Ar 64 d aircraft were produced.
A total of sixteen Arado Ar 64 e fighter aircraft were built. They incorporated changes made to prior models and used the non-geared Jupiter VI engine with two bladed props. They were used primarily as training aircraft.