Marmot. Still missing the point old chap, still unable to decipher a definition and still, quite evidently, not a marine engineer. Sorry mate.
I really am. You are not even on the same planet, and I can't help that.
And also I cannot be held responsible for your being unable clearly to decipher the English language.
Yet still you seem unable to refrain from sarcasm and insult.
So, yet again, your out-of-context, yet intentionally insulting, comment is not worth dignifying with an answer, most especially as I have been warned by the Forum owner against taking swings at other's comments. Sorry.