Rudder Length

05/08/2009 10:05:51
I am currently trying to get a Mark IXB ready for some vintage racing.

I have the rudder the boat came with which is very short and literally shaped like a chopped down scaffold pole.
I am in the process of reincarnating a bust up Turner fixed rudder from the early 90's that I found in my Dad's garage but it is an awful lot longer than the original.

Is it wise to use the newer longer and wider rudder for river sailing?
will it be an advantage or a disadvantage?

I welcome all opinions.

05/08/2009 10:06:46
that would be scaffold plank, even I would know not to sail with a scaffold pole!

05/08/2009 10:08:42
I'll be checking to make sure you're not sticking wings on it!

05/08/2009 10:46:07
I thought as long as we called them fences they were allowed :-)

05/08/2009 11:06:12
The rudder for my XII is 35 inches...I am launching the boat at Hampton this weekend for the 1st if it is too short....

05/08/2009 11:19:39
The answer is complex, if you go to the link below you'll find that there are whole groups of people discussing profles and sections.

But in simple terms, more surface area = more friction, short and fat better for low speeds, long and thin better for high speeds.

The Turner rudder in your dads garage will probably be fine for your needs.
05/08/2009 11:41:59
The simple answer is to have both.
Passing Cloud has a long rudder which is essential for windy days like Salcombe this year and a short raked back rudder for river sailing.
Windy races with a short raked back rudder normally end in a very early swim, you only need heel a bit too far and you can't steer.

I'm sure you Turner will be fine.....

05/08/2009 12:07:13
That's exciting Mike, sorry I won't be there to see it as I'll be in Wales fishing for mackrel. The plan is to have mine ready for the Hampton Vintage regatta and silver tiller at the start of September.

Judging by general opinion (THANKS ALL) with the longer fatter rudder.

05/08/2009 12:27:30
Andrew M
Nothing wrong with a Jon Turner rudder.  The shape is very similar to the Winder one without the little beak at the tip for catching the weed

05/08/2009 15:06:55
Don't you have to be going backward to catch the weed on the beak :-)


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