An experimental German WWII heavy tank developed by Henschel. The vehicle was a further development of the VK 30.01 (H) project and a stage in the design process for the Tiger. A total of eight chassis and one prototype were built in 1942. During the development, various technical solutions were trialed. Some of them later served as a basis for German heavy tank designs during the WWII. The chassis was also used in armored recovery vehicles.