What is rake?
Tuesday, February 5, 2008
- Carl Desmond
Rake is the angle of the blade to the
center of the shaft measured in degrees. Most performance propellers
are angled aft to give the boat more lift without ventilating the
propeller. The two common types of rake used in performance boating are
parabolic and straight rake. Parabolic rake is an off-center rake line
that gives the blade an appearance of a spoon-like effect. Straight
rake is basically flat across the blade.