In 1942 command "Luftwaffe" has realized insufficient efficiency of standard bombs against constantly amplifying tank armouring. In this connection variants of more effective anti-tank armament for planes Ju-87 which for that moment were the basic anti-tank weapon of German aircraft have started and to be found.
The most obvious decision was arms of the machine an anti-tank gun with large enough shell. For this purpose have chosen 37-mm easy antiaircraft gun Flak-18 on the basis of which advanced instrument VK 3.7 has been created.
Installation of this gun by converted plane Ju-87D-3, has resulted in occurrence of updating Ju-87G-1 which was taken advantage in the autumn of 1942. It became last fighting updating of aircraft; 5700 planes Ju-87 of all updatings were built.