English: Amphibious wheeled tank project from 1928. The machine used a wheeled-track chassis according to the patent of the company Saint-Chamond, which used it in its early 20s of the 20th century on its wheeled-track tank Saint-Chamond 1921. Due to the amphibious purpose of the machine, the hull was shaped like a boat. Propulsion on the surface was provided by one propeller mounted at the end of the hull. The maneuvering of the machine on the surface was ensured by a simple rudder. The conversion of the chassis from crawler to wheeled and vice versa should not take more than 3 minutes. The body was to be made of 15 mm armor plates joined by riveting. A round tower was mounted on the hull. The tower does not carry any weapons in the photos. According to widespread claims, the machine was to be armed with a 37 mm cannon and an 8 mm machine gun. According to a French source listed below, the project did not go beyond the mock-up stage (according to known photographs of this machine, it only looks like a mock-up). According to Mr. Pejčoch, one prototype was completed (his publication also lists specific TTDs).