The RLM issued a specification for a "Bomber
B" design in 1939, to replace the Ju 88 and Do 217 by 1943. Four companies
submitted designs for a twin engine medium bomber that could also dive bomb
and have tactical ground support: Arado (Ar E.340), Dornier (Do 317B), Focke-Wulf
(Fw 191) and Junkers (Ju 288). The design specifications called for top
speed of 600 k/hr (373 mph) at 7000 m (23000') with a range of 3600 km (2236
miles) carrying a 2000 kg (4400 lbs) bombload. If more powerful engines
became available, then a shorter range bombload of 6000 kg (13200 lbs) was
forseen. There were three engines under development at the time that would
fit the requirements: the Daimler Benz 604, the BMW 802 and the Jumo 222.
The Jumo 222 engines were chosen because these were projected to be ready
in the available time frame. Span:
22.98 m (75' 4.7") Length:
18.65 m (61' 2.3") Max. Speed: 580 km/h
(360 mph) w/ Jumo 222
625 km/h (388 mph) w/ DB 604
Andreas Otte's art
of the Ar E.340
An artist's impression of the Ar E.340 from 1939....