In the Autumn of 1944 The RLM issued a requirement for a bomber capable of reaching the east cost of the USA and deliver a 4-ton bomb-load or 'special' weapon without refuelling. The Horten brothers(among others) submitted their Amerika Bomber scheme in various configurations of power-plant and wing arrangement (this initial design was a much more elegant flying wing).
On 23rd March 1945 and after much debate the contract was finally awarded to the Hortens by Göring. Junkers and Messerschmitt were to control production and they their own ideas about the aircraft. Modifications were suggested (such as the large tail-fin) some of which which were reluctantly agreed to by the Hortens. The aircraft was to be constructed of 'salvage'' materials such as tubular steel and plywood. Powered by 6 x Junkers Jumo 109-004H turbojets and armed with remote guns in the nose and tail. It is reported that construction commenced on 1st April 1945 in the underground workshops in Thinguria, central Germany.
Span 42m (137' 9") Length 19m (62' 4") Maximum Speed 852 kph (530 mph) Range 11,000km (6,835 miles) Bomb Load 4,000 kg (8820 lb).