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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. For beginners and old pros, Prop School offers tips and tricks to help understand and maximize 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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