Simple model of Italian Maiale (nicknamed the pig because it was difficult to steer) wchich was the first truly practical human torpedo was the used in the Second World War.The Maiale was electrically propelled by a 1.6 horsepower (1.2 kW) motor in most of the units manufactured, with a top speed of 3 knots (5.6 km/h) and often required a travel time of up to two hours to its target. Two crewmen in diving suits rode astride, each equipped with an oxygen rebreather apparatus. Model of this vehicle based on photos - so something can be not correct - I had no detailed planes or documentation of that . Create folder and extrat files ( textures should be in separated textures folder ) Model created in blender - 2.79 so every later version can open it. Nodes should be changed in latest version of Blender. One set of textures 4096 x 4096. PBR material. MODEL WAS NOT CREATED FOR PRINTING.