How to Avoid Huge Ships

I picked up this book because, honestly; the title amused me. I mean, how to avoid huge ships? Isn’t that obvious? Just stay the hell out of their way, right?

Not so fast. Not so easy.

I was unjustifiably self-confident. The truth of the matter is that big ships, like those we encounter in shipping channels on the Columbia River, are more complicated than we think.

For example, when a cargo ship is navigating, it does so with a propeller. The propeller provides forward movement and steering by directing a massive stream of water against a rudder. The force of the water bounces off the rudder, turning the ship. No surprise here.

But what happens if one of these large ships is moving downriver with the current? This reduces the pressure of show more the water from the propeller against the rudder, reducing the pressure available to turn the ship. Likewise, if a ship slows down, it again loses some of its ability to turn. If some knucklehead cuts across the bow of one of these ships, causing the ship to slow down, the ship has a vastly reduced ability to change course.

Secondly, these are called large ships for a good reason; namely, they are LARGE. Which means MOMENTUM. Which means they really can’t stop anytime soon. Again, if some knucklehead cuts across the bow of one of these ships, the Captain will have little choice except to tell the coast guard to come pick up pieces of a kayak and the associated paddler.

The book goes on to discuss the snug tolerances of a shipping channel, the power of a bow wave and a stern wave, how current and wind affects large ships, visibility from the ship (hint: THEY CAN’T SEE KAYAKS) and misperceptions of speed and distance.

This is a quick read (80+ pages) and features useful diagrams and examples. Anyone paddling near shipping channels would benefit from the brief lessons contained in this book. show less

How to Avoid Huge Ships by John W. Trimmer is a humorous and satirical take on maritime navigation that stands out in a sea of technical manuals. The book cleverly plays on the literal interpretation of its title, offering entertaining insights while poking fun at overly complex instructional materials.

Trimmer's wit makes this book enjoyable and memorable, appealing to both seasoned navigators and casual readers alike. The writing is accessible, ensuring that even those without a maritime background can appreciate the humor and lessons within.

While it may not serve as a comprehensive guide for serious navigation, the book’s charm lies in its light-hearted approach. It encourages readers to think about awareness and caution in various show more aspects of life, making it a delightful addition to any bookshelf. Overall, it's a fun read that combines entertainment with a valuable message, leaving a lasting impression. show less