Non paralllel rudders?

erikgreen

Captain
Joined
Jan 8, 2007
Messages
3,105
Hi there -

A friend of mine has a 30' trojan cabin cruiser that we were working to get into the water this weekend. Among other issues (one with a sea **** leaking, also working to get the motors started after the winter) we discovered that the rudders aren't parallel.

That is, when we align the port rudder to be in line with the prop shaft on that side, the starboard rudder is 10 degrees or so turned to port. We can split the difference between the rudders, and have both of them turned toward each other at about 5 degrees, but this still seems wrong.

Can anyone think of a reason the rudders would be set up this way, to be turned slightly toward each other, when the steering is centered?

Erik
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Non paralllel rudders?

Same reason the front wheels on your vehicle are set with a small amount of toe-in, Erik. That way neither overpowers the other, inducing shimmy.
 
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