Crew Fatigue in GWX, and its actual impact?

[hocking]

For the first time ever in Silent Hunter III, I am feeling pretty comfortable with the crew fatigue in GWX and how to manage my crew effectively. It really feels realistic, and I don't have my boat shutting completely down because 90% of my crew has decided that they are tired and don't want to work anymore. Great job GWX designers.

My main question is in regards to teh actual impact of crew fatigue on their actual performance in certain areas.

Is it safe to say that if I have a watch crew on duty with a fatigue level that only fills the green bar above the watch crew on the Crew Management Screen half-way up, they will not see as far or as many passing ships as compared to a watch crew on duty that filled the entire green bar all the way up?

Or, if I had an engine crew on duty with a half-filled green bar (and big red exclamation Points everywhere) they would use quite a bit more gas to run the engines than what a crew with a full-green bar would use?

Or, if I have a "Command Room" crew on duty with a half-filled green bar, will they take twice as long to dive in an emergency situtation than what a fully filled green bar crew would take in the same situation?

I guess you get the jist. Does the green bar actually tell you how that area is performing, or just how tired those crewmen in that area are?