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#1
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posted to rec.boats.building
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Just yanking the tiller over may
serve some, but a sensitive analysis of the dynamics can be educational. Instead of horsing the tiller, one moves it smoothly, feeling it's bite in the water so that it is never stalled, using the foreward momentum acting on the rudder to convert boatspeed efficiently into angular momentum, one is then apropos actually able to contribute to accelleration once the head is around, by coupling the rotational momentum back into the boatspeed, by using the tiller skillfully as a wing so that once the boat is turning, carefully considered control of the tiller ensures that it's sideways motion is translated into foreward thrust instead of stalled drag. It's a seat of the pants thing, kind of related to driving a car smoothly as opposed to jerking the wheel around until everyone is carsick. |
#2
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posted to rec.boats.building
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If you want to see how much 'angular momentum'
a boat does store, let the tiller go in the middle of what would be the sharpest turn you can manage and see how much further it turns. Them long hulls is built for going forward, not for spinning. ![]() |
#3
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posted to rec.boats.building
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My boat has short bilge keels and will happily spin around until it
drills a hole in the water. I can feel the coupling I mentioned earlier, and if you have a boat which turns easily, you might too, if you are not er, "insensitive." My HR28 had a relatively short keel, and it too reacted in the same way. I built a wheel steering system from sewer pipe etc for it, and had about 45 degrees deflection, as I do comfortably with the tiller on the Tyler 29, and hardly ever need or needed to use full deflection. The rudder is actually a brake. We steer the boat by adjusting the sail balance and trim. Both had counterbalanced rudders, and neither would hold a course unless very carefully set up in steady conditions and only with the tiller or wheel lashed. If either started to turn and was let go, it would just about screw itself right down into a whirlpool. Management of angular momentum is something to learn, like feeling the groove, but is more delicate. Terry K |
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