Symmetrical vane profiles for maximum tranversal stresses and, at the same time, the maximum stability of course.

摘要

A rudder with a symmetrical profile has a nose portion (1) and rear edge of a tail portion (5) of particular shape and form. The nose portion (1) forms an obtuse angle alpha of up to 150 DEG and straight sides (2) of the angle alpha form tangents to a convex lateral contour (3) of a front portion (4). The tail portion (5) has a straight, diverging lateral contour with sides (6) having a flank angle beta of up to 15 DEG and a rear edge (7) forming an obtuse angle gamma of up to 150 DEG . Straight sides (8) of the angle gamma each join a respective radius (9) which form sharp separating edges (10) with the sides (6) and obtuse angles delta are formed between tangents (11) to the radii (9) and the sides (6). IMAGE