ObjectivesThe bending-torsional coupling deformation degree of a composite propeller reflects the stiffness characteristics of the blade. which in turn have a certain correlation with its hydrodynamic performance. A fiber layer design for a composite propeller is optimized from the perspective of stiffness. MethodsTaking a DTMB 4383 composite propeller as the research object. https://foldlyers.shop/product-category/cassette-players/