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Rosvita Rauch
Hill, NH, USA
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Astern Propulsion
Posted 2020, Jan 05 13:35
Just in case anyone else, like me, doesn't immediately know what this means: "Astern propulsion (as applied to a ship) is a maneuver in which a ship's propelling mechanism is used to develop thrust in a retrograde direction. ... The equivalent concept for an airplane is reverse thrust. In a sailing ship astern propulsion can be achieved by the appropriate manipulation of the sails." https://en.m.wikipedia.org/wiki/Astern_propulsion