During the World War II, Germans managed to develop their jet fighters which were much faster then the
US war planes. Therefore, the US Army Air Force had to make a jet bomber plane to compete the Germans. The
US air force also needed a plane, which could achieve military goals on both land and sea. XB-43 came as the solution to this urge. In 1943,
Douglas developed the XB-43, which was basically the jet aircraft version of the alternative XB-42. Although the projects began in September 1943, the XB-43 could not reach the designing board before the year 1944.
On
14 January 1944, the AAF ordered two more XB-43s. On 31 March, a formal order contract was approved. The AAF set the expected cost of the two trial aircrafts at about $2.7 million and about $107,000 for the contractor
