Originally Posted by AusCan
My rudder fails rule #3. I haven't measured it but from this old photo I have, but the rudder stock appears to be only about 10% back from the leading edge.
I'd assume this would require more force to turn the rudder, although my steering seems light, even though its cable driven and the rudder is quite large.
The force required to turn the rudder greatly increases with speed. At hull speed it would be much less of an issue. If you think about a rudder with no leading edge, only about half of the water coming off the propeller would hit the rudder. As you add more leading edge, a greater percentage of the water off the propeller hits the rudder. At slow speeds under power, the water from the prop hitting the rudder is what pushes the stern over. More leading edge equals more force on the rudder equals more steering force. Some boats such as sail boats use a much larger rudder to use the flow of the water over the hull as the force against the rudder. Your boat may fall into that category when moving at cruising speed. But when going slow or docking, it is the water coming off the prop hitting the rudder that gives you steerage.
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters