Question 4192Deck General70% to pass
Flanking rudders effect a vessel's heading because of the _______________.
AI Explanation
The correct answer is B) effect of the propeller flow on the rudders.
The propeller flow, or the discharge current from the propeller, creates a thrust that can be channeled by the flanking rudders to influence the vessel's heading. The propeller flow impinging on the rudders generates a lateral force that causes the vessel to turn or change direction. This effect is known as the "flanking rudder" or "opposing rudder" effect.
The other options are incorrect because they do not directly address the primary mechanism by which flanking rudders affect a vessel's heading. Option A refers to the general water flow due to the vessel's movement, which is not the specific effect of the propeller flow on the rudders. Options C and D describe other hydrodynamic phenomena, but they do not explain the key reason for the flanking rudder effect.
Related Questions
#4190 Which type of rudder may lose its effectiveness at angles of 10 or more degrees? #4191 If a tug equipped with flanking rudders is to be turned in a confined circle, when going astern, the stern will move to port the quickest if _______________.#4193 Generally, you can best keep a vessel under steering control when the vessel has _______________.#4194 The pitch of a propeller is a measure of the _______________. #4195 You are on a single-screw vessel with a left-handed propeller making no way in the water. How will your vessel react when you apply right rudder?