Henschel was authorized to carry on the development of VK3001 in September of 1938, and has made 4 chassises during the period from March of 1941 to October, among them two were repacked into the heavy-duty anti-tank gun and attacked and wipe out the car at the beginning of 1942, install anti tank gun that 128mm. of anti aircraft guns refitted. 128mmSFL/61 is used in in the east line fighting, on of them was captured in 1943, the photo of another on showed that there are 22 combat successes in it .