free surface moment


Stability Letters Explained

For small vessels, the major problem with stability letters is explaining it to the captains. Today I will review a stability letter and give plain English interpretation of all the boring mumbo-jumbo.
shipwreck. Capsized ship.

Free Surface Moment

Without proper management, the shifting liquid in a ship’s tanks can create a lethal scenario. Free surface moment (FSM) is one of the most frequently misunderstood elements in ship operation. The deck officer that values their life wants to understand free surface moment. The physics behind it, and how it applies to ship operating limits.

Stability Test Theory

What science could possibly link moving a few weights on deck with calculating the light ship weight? Armed with knowledge, we carefully exploit physics to achieve high quality science without the fancy equipment. Today I explain some of the theory behind the stability test.
Title Testing List and Loll

Do We Have a Problem: Testing for List and Angle of Loll

EVER WASTE MONEY ON SPECIALISTS!  Here are a few simple-do-it-yourself tests to check for ship list and angle of loll.
Angle of Loll Title Page

Angle of Loll: Hidden Dangers to Stability

PANIC! That should be your reaction if your ship developed a permanent list. Angle of loll shines like a bright red warning sign, indicating serious stability problems. Today we discuss an angle of loll (AOL): what it is, how to find it, and what to do about it.