The book outlines the modern (at that time) theory and methods for calculating non-cavitating and cavitating propellers, as well as the propeller-guide nozzle complex. Considered: questions of the theory of interaction of the propeller with the hull of the vessel and the calculation of the propeller in uniform and uneven speed fields; special questions of the theory and calculation of the propeller - the operation of the propeller in reverse modes, periodic forces and noise generation, the theory and calculation of coaxial propellers, the calculation of the propellers of multi-shaft vessels, the effect of ship pitching on the operation of propellers.