The 3D print model of a British S-Class submarine from the Second World War in 1:48 scale is the result of a complex and careful development process aimed at experienced model builders. The model can be used both as a functional remote-controlled (RC) submarine and as a detailed visualization model. It has been specially designed for use with a 70x860 mm diving cylinder, making it ideal for RC applications. The dimensions given in the preview images offer important reference points for precise implementation. Although it is less suitable for beginners, this demanding project rewards the effort with an authentic replica of a historic submarine.