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Prop School

The ever-changing variety of hull designs, engine configurations, and general boat capabilities place new demands on propeller performance.

Part 1:

Introduction

Working in performance boating is exciting: It’s fast-paced. Propulsion systems and hull designs are in continual evolution.

Part 2:

Terminology

Basic propeller terminology and fitment of propellers.

Part 3:

Blade Rake

Rake is the angle of a propeller blade face relative to its hub. If the blade face is perpendicular to the hub, the prop has zero-degree rake.

Part 4:

Blade Cup

Continuing from Prop School…Part 3. Here I will explain everything you need to know about Blade Cup. Cup is a curl formed or cast into the trailing edge of a propeller blade.

Part 5:

Blade Efficiency

For this, the fifth installment of my Prop School series I will review the various propeller blade designs and how they – along with rotation – affect propeller efficiency and overall boat performance.

Part 6:

Slip

Response to my Prop School series has been gratifying. It has generated a lot of good discussion (online and off) regarding propeller design, function and application.

Part 7:

Barrel Length

The length and size of a barrel on a propeller is often overlooked, yet it is one of the most important features when dialing in a boat.

Part 8:

Propeller Finishes

The “finish” on a high-performance propeller refers to how the raw propeller casting is transformed into a ready-to-use propeller.

Part 9:

How to reach your performance goals

Propeller selection can be a mind-boggling exercise. Start the process by following these basic tips.

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