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When Momentum is the Enemy

January 15, 2020 by Guest User in Seamanship Column: Soundings

Making good decisions at sea is about much more than going with your gut.

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January 15, 2020 /Guest User /Source
Seamanship Column: Soundings

Communicating with Crew

October 31, 2019 by Lisa Arhontes-Marshall in Seamanship Column: Soundings

Leadership calls for communication that is unambiguous, delivered in a way that motivates rather than alienates. It also calls for listening, which is a source of strength, not weakness.

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October 31, 2019 /Lisa Arhontes-Marshall /Source
Seamanship Column: Soundings

Good Samaritan Towing

August 28, 2019 by Lisa Arhontes-Marshall in Seamanship Column: Soundings

If you spend enough time on the water, then sooner or later you will wind up at one end or the other of a towline. Mechanical failure, running out of fuel, and wind dying are common enough that eventually we either need a Good Samaritan or we become one.

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August 28, 2019 /Lisa Arhontes-Marshall /Source
Seamanship Column: Soundings

See and Be Seen

June 21, 2019 by Lisa Arhontes-Marshall in Seamanship Column: Soundings

What I find most interesting about AIS is its capacity to foster new patterns of human behavior and perception.

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June 21, 2019 /Lisa Arhontes-Marshall /Source
Seamanship Column: Soundings

Pulling Weight

May 20, 2019 by Lisa Arhontes-Marshall in Seamanship Column: Soundings

Preparing for an anchor to drag actually begins long before it happens.

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May 20, 2019 /Lisa Arhontes-Marshall /Source
Seamanship Column: Soundings

Does Your Anchorage Rate?

February 27, 2019 by Lisa Arhontes-Marshall in Seamanship Column: Soundings

Most folks have a fair idea of what makes a good anchorage. You need shelter from the elements and room to swing 360 degrees. But what else?

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February 27, 2019 /Lisa Arhontes-Marshall /Source
Seamanship Column: Soundings

Matters of Weight

February 21, 2019 by Lisa Arhontes-Marshall in Seamanship Column: Soundings

Since we cannot see ground tackle at work on the seafloor, it’s important to visualize what is going on down there, how it all works and why it sometimes doesn’t.

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February 21, 2019 /Lisa Arhontes-Marshall /Source
Seamanship Column: Soundings

A Period of Transition

August 29, 2018 by Lisa Arhontes-Marshall in Seamanship Column: Soundings

Having respect for how transitions affect awareness can help you avoid a situation where your head is in the old game, when a new game has already begun

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August 29, 2018 /Lisa Arhontes-Marshall /Source
Seamanship Column: Soundings

Positive Stability

June 27, 2018 by Lisa Arhontes-Marshall in Seamanship Column: Soundings

Positive stability is a vessel’s tendency to resist capsizing. Negative stability? Not so much.

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June 27, 2018 /Lisa Arhontes-Marshall /Source
Seamanship Column: Soundings

Make A List, And Check It Twice (At Least)

April 25, 2018 by Lisa Arhontes-Marshall in Seamanship Column: Soundings

A checklist serves as an unchanging memory prompt when detail and sequence are critical.

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April 25, 2018 /Lisa Arhontes-Marshall /Source
Seamanship Column: Soundings

Depth Perception: It's More Then What's Under The Keel

April 20, 2018 by Lisa Arhontes-Marshall in Seamanship Column: Soundings

When visual references are reduced by darkness or fog, depth plays an even more important role in cross-referencing.

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April 20, 2018 /Lisa Arhontes-Marshall /Source
Seamanship Column: Soundings

Line 'Em Up: Navigating With Natural Ranges

December 06, 2017 by Lisa Arhontes-Marshall in Seamanship Column: Soundings

A natural range exists when two charted objects — one closer and one farther away — visually align and appear to meet, forming a line of position, or LOP.

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December 06, 2017 /Lisa Arhontes-Marshall /Source
Seamanship Column: Soundings

Know What To Do Before The Flood

November 01, 2017 by Lisa Arhontes-Marshall in Seamanship Column: Soundings, Electronics Column: P&M

For me, the words damage control conjure claustrophobic scenes from the 1981 German U-boat film Das Boot. Begrimed men, stripped to the waist in rising water, struggling to plug gushing pipes that depth charges ruptured, all while the prying ocean tries to entomb them in their fragile biosphere. 

 
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November 01, 2017 /Lisa Arhontes-Marshall /Source
Seamanship Column: Soundings, Electronics Column: P&M

You Might Be Surprised If You Don't Know Squat

June 15, 2017 by Guest User in Seamanship Column: Soundings

Squat is a related pressure phenomenon. Also known as “smelling the bottom,” squat causes a vessel to ride lower in the water than normal. If the water is shallow enough, squat can have serious navigational implications for vessels of all sizes.

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June 15, 2017 /Guest User /Source
Seamanship Column: Soundings

Bank Effect: It Can Happen When You Least Expect It

April 11, 2017 by Guest User in Seamanship Column: Soundings

When a fine-bowed vessel glides through smooth blue water, the bow seems to cleave the water effortlessly, slicing a passageway through which to gracefully pass. To an extent, the eye does not deceive, but to one degree or another all vessels — finely shaped or otherwise — push, or displace, water to make way for the hull.

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April 11, 2017 /Guest User /Source
Seamanship Column: Soundings

Liquid Dangers: Managing Free Surface Effect

February 15, 2017 by Guest User in Seamanship Column: Soundings

Kids quickly grasp that weight up high makes a thing less stable: think of a pogo stick, stilts or a unicycle. It is equally plain that weight down low makes a thing more stable: Weebles wobble, but they don’t fall down. What is less obvious to kids and grown-ups alike is how free surface effect — liquid sloshing freely from side to side in or on a boat — functions like an invisible hand rocking a boat closer to the point of capsize than we know at a given moment.

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February 15, 2017 /Guest User /Source
Seamanship Column: Soundings

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