I've often wondered what practical reason there is for the lighting rules to be different for inland than anywhere else. I can almost understand the towing and pushing differences, but for a power driven vessel? David- even studying for my license I never picked up on the second mast head/all round light variance for inland, good eye.
Thanks but it wasn't me it was Charley Wing.
His book makes these little differences stand out.
Also it is not inland it is great lakes for the all around.
Even more subtle that you thought huh?