hearts and minds

November 8, 2006

Paddlesports Quick Physics – by Clyde Winter

Filed under: Paddlesports,Recreation — Hearts & Minds @ 11:00 am

A series of short articles discussing helpful technical concepts and dispelling common misconceptions. They’re applicable to whatever and wherever you’re paddling, and intended to increase your fun and proficiency.

In sorrow for and memory of those watersheds that have been and are being violated …
In gratitude to those who are helping us leave a cleaner wake …
In hopes that we will learn and act before it’s too late …
These notes are for all who love and respect the water.

The articles in this series are written, published, and copyright by Clyde Winter, canoeist, kayaker, and U.S. merchant mariner (Master and Chief Engineer of inspected motor vessels up to 1600 gross tons on any waters).

The Table of Contents that follows has direct hyperlinks to each article.
Click on the chapter title, and the article will appear in front of you.

PADDLESPORTS QUICK PHYSICS – TABLE OF CONTENTS

I. The Peripatetic Pivot Point

1. Location of pivot point on a boat
(In the Center, Forward, Aft, and Exceptions)
2. Effect of pivot point
a. Weathercocking
b. Drifting in wind
c. Ferry moves
d. Turning
e. Tandem Leverage
3. Tandem strategy, psychology, and teaming for success

II. Momentum and Energy – use it or lose it, prn

1. Double edged swords
2. Linear momentum
3. Heading and speed vs. course-made-good; set and drift
4. Examples – Paddling, drifting, with and against current
5. Grasping mass and velocity; advantages of controlling momentum
6. Ways to control momentum
a. Back ferry
b. Flanking turn
c. Loss of control scenario
7. Turn, yaw and rotational momentum
8. Kinetic energy and damage

III. Everything Floats

1. Definition and use of flotation
2. Capsize with full flotation and eskimo roll
3. Capsize with full flotation and wet exit
4. Capsize with no flotation
5. Cautions and encouragement
6. PFD and hypothermia
7. Responsibility

IV. Buoyancy and Uprightness – the spirit of the paddlecraft

1. Weight and center of gravity
2. Flotation and center of buoyancy, effect on stability
3. Righting vs. capsizing couples
4. Critical angle
5. Loss of stability when aground

V. Kayak Capsize Recovery and Survival – a fresh look at a very old problem and solution

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