See, what would happen is that it is many of thrust that is coming. Yeah no no what I am
telling you, that Because of this propeller, let me put the thrust on that rudder. See the
propeller is moving in one direction. So, what happened, the flow direction will be
average this side, not straight line. Yeah. So, therefore, if the rudder is here, flow will be
creating coming on this side and in other words, you can say that, if you keep the rudder
at this small angle, Whole thrust this will be the neutral angle. No no turning force will
come, therefore, if you want to now, if you want to turn this side, I have to give more
rudder here. So, I end up giving say, same angle from this place, which means, more
angle from the main line, see this may be 28 degree, means 30 degree from here. So, the
30 degree may be equivalent to this side 26 degree in in other words. Therefore, it means
that, if I give 30 degree here, it will turn quick; that means, it will be smaller here, this
will be larger here for the same angle, this is what I would think, I am only thinking
about intuition, I have to check. But, I think that is how you can you can make out. No,
not thumb rule, it is also proven actually. Rudder empirical formulas also tell you the
rudder force is different in both side, port and starboard.
See, what would happen is that it is many of thrust that is coming. Yeah no no what I amtelling you, that Because of this propeller, let me put the thrust on that rudder. See thepropeller is moving in one direction. So, what happened, the flow direction will be average this side, not straight line. Yeah. So, therefore, if the rudder is here, flow will becreating coming on this side and in other words, you can say that, if you keep the rudderat this small angle, Whole thrust this will be the neutral angle. No no turning force willcome, therefore, if you want to now, if you want to turn this side, I have to give morerudder here. So, I end up giving say, same angle from this place, which means, moreangle from the main line, see this may be 28 degree, means 30 degree from here. So, the30 degree may be equivalent to this side 26 degree in in other words. Therefore, it meansthat, if I give 30 degree here, it will turn quick; that means, it will be smaller here, thiswill be larger here for the same angle, this is what I would think, I am only thinkingabout intuition, I have to check. But, I think that is how you can you can make out. No,not thumb rule, it is also proven actually. Rudder empirical formulas also tell you therudder force is different in both side, port and starboard.
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