FIELD: transportation.
SUBSTANCE: water vessel undercarriage device comprises a standard shaft with a propeller screw on it, and is provided with at least one additional shaft with a propeller on it, coaxially to the standard shaft, and with a variable and different from the standard shaft rotational speed. At least one additional plane of the rotary water craft with horizontal and vertical control is provided in the way of flow, which forced by the second auxiliary propeller. Additional plane has a surface of profile curvature similar in shape to the discharge flow outer isobar.
EFFECT: increased reliability of the water vessel undercarriage, increased total force on the propeller shaft without increasing of propulsor working places across the vessel width.
2 cl, 3 dwg
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