E 233 project started in 1940, Ar 430 designation by RLM.
Two crew, six to eight passengers.
All metal construction amphibian.
Retractable wheel landing gear and floats
Span 23.79 m
Length 20.92 m
All-up weight 9434 kg
Initially proposed power plant 2 x Bramo 323 R2, 1000 hp each
Maximum speed 313 km/h
Electrical de-icing gear for wing leading edges.
Air conditioning for deployment to Mediterranean
Design of wings and tail started in january 1941. Spray testing of a scale model conducted at DVL's Institut für Seeflugswesen, Hamburg. In 1943 the design was handed over to the French Dewoitine firm for further development. In April that year, another French firm, SIPA, delivered tails and wing flaps.
First prototype was to be fitted with 700 hp Gnome-Rhône 14M engines. In mid 1944, shortly before completion, the project was cancelled because of the Normandy landings.
Source: 'Die Deutschen Luftfahrt - Arado Flugzeuge - Vom Doppeldecker zum Strahlflugzeug' by Jörg Armin Kranzhoff, Bernard & Graefe Verlag, 2001