Consider Smaller Vessels as Commercial Fishing Vessels, Research Vessels, Smaller Passenger Vessels or Towing Vessels, where fuel and water consumption plays a big roll in duration at Sea.
Daily License Questions about Ship Stability and Trim: I just think people need to have some knowledge in their heads, professional or otherwise. After 2007 our world has changed due to the advent of Smart Phones. Retaining knowledge is like being able to play a musical instrument, if you do not use it you will lose it! The questions I post with will hopefully help you keep what you already know or remind you of what you should know. William E. George
On "small vessels" say less than 100 tons. You have the stability letter, with max drafts given. I've seen crew boats with an open deck have a stability graph, with weight and height above deck limit, with a M.D.A. "maximum draft aft" for vessels less than 500 tons. It appears the USCG takes into account that most small boat operators do not have the training - knowledge that the upper level license require, and build in a safety factor for this. It would be a good idea to learn the basics even at the lower level..
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