By Herb Jarrett- Treasure Coast Propellers
In the last century Marine propellers were rather simple compared to modern day props. In 1995 most boats ran standard flat faced propellers, therefore the size was a combination of three factors (diameter, pitch and the number of blades). A prop stamped 30X32X4 would have 30” diameter, 32” of pitch and 4 blades.
Along with our demands for faster more efficient boats we have created demand for more complex propellers .Today we need to define propellers with the three basic factors and several more like, blade area, camber, and the pitch span.
Diameter = distance (inches /millimeters) from blade tip to [Read more…]