Dovetail fits

A method of attaching or joining parts in which the ends to be joined are shaped in the form of the spread-out tail of a dove. The rotor blades of some turbine engine compressors are attached to the disk by a dovetail joint. The periphery of the disk is cut with a series of triangular-shaped slots, and the blade roots are made with a dovetail-shaped end that fits into the slots in the disk. The dovetail method of blade attachment holds the blades firmly against centrifugal force, dampens vibration, and compensates for the effect of temperature change.