I can not really express how much I appreciate your valuable time explaining about it. It has increased for sure, my knowledge and ability to make things happen easier when maneuvering ships of any LOA and GT, You are really good at explaining this!
Dear Dleep Fotedar, Your videos are very excellent and explanations are simple and easy to understand. I see that your "SH Lesson 5 Exam Situations" has been, inadvertently perhaps, set as "for children". Hence it cannot be saved as well as commenting is disallowed. I request you to amend the settings as there really is no content in that particular video that could be termed offensive to minors. Thankyou.
Stern of the ship when the ship is moving usually has a positive pressure due to the churning effect of the propeller. But this positive pressure is way weaker than the positive pressure at the bow (when vessel moving forward).
Because of the shallow water effect, more resistance/turbulence is created at the stern pushing the Pivot point towards the aft (say 40% to 50% from the bow). So, the rudder effect on the ship's turning will be greatly reduced. Thats why the ship will have to move further than her normal 'Advance' distance, before starting to show the effect of turning, in shallow waters. Hope this clarifies your doubt.
