تعريفات اساسة للسفينة

How does a steel boat float? (http://www.k-sea.com/faq's.htm#_top)
What is meant by stability on a boat? (http://www.k-sea.com/faq's.htm#_Where_can_I)
What's the difference between a barrel and a drum? (http://www.k-sea.com/faq's.htm#_Why_doesn’t_…?)
What is dwt? (http://www.k-sea.com/faq's.htm#_Who_is_…?)
What is Gross Tonnage? (http://www.k-sea.com/faq's.htm#_What_is_…?)
What is Net Tonnage? (http://www.k-sea.com/faq's.htm#_When_is_…?)

<FONT face=Arial>What is lightweight tonnage (http://www.k-sea.com/faq's.htm#_What_is_lightship)<B>