sounds like you have the answer ! could you share it with me ? I'm still confused with air and water supposedly acting in physics and aerodynamics as "liquids" but with different viscosities and other characteristics.(temp ?!!) Hence in former times the term "airscrew" > Does Bernoulli apply for ships' propellers ie an area of lower pressure behind the blades "sucks" the ship forward , compared to me driving an Archimedes screw through a piece of wood by dint of elbow grease ? Go on , give me an idiots guide to it all
