[Rhodes22-list] Curved Rudder | 84 Rhodes 22

Mon Nov 26 18:41:13 EST 2018

Graham/Bob,

> “In the beginning” ... The centerboard and the rudder blade we’re the same identical foil.  It was a very hydrodynamically efficient high aspect ratio foil.  At some point in the 1980’s (?) Stan changed the designs of the centerboard and rudder blade.  So, if you have a 1976 boat, your rudder blade is going to be thinner vs a newer boat.  Stan claims the new rudder and centerboard offer better performance vs the older parts.  But, that claim flies in the face of hydrofoil theory, so I’m a little sceptical.  I’d love to see an old vs new boat match race.

Bob, I may have misunderstood something.  Did your boat come with a bent rudder blade or did you notice the bend recently after the boat was sitting on the trailer.  In the picture, it looks like the boat has sunk into the ground loading up the rudder blade.

Roger Pihlaja 
SV Dynamic Equilibrium 
Sent from my iPhone

> On Nov 26, 2018, at 3:58 PM, Graham Stewart <gstewart8 at cogeco.ca> wrote:
> 
> Bob:
> Your rudder looks to me to be much thinner than mine. There also appears to
> be a lot of space around the rudder in the rudder holder - whatever you call
> the upper part that holds the rudder. I am wondering if this an original
> rudder or a replacement. Is that possible? 
> Graham
> 
> Graham Stewart
> Agile 1976 Rhodes 22
> Kingston Ontario
> 
> 
> 
> -----Original Message-----
> From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> On Behalf Of C.
> Robert Lester
> Sent: Sunday, November 25, 2018 8:35 PM
> To: The Rhodes 22 Email List <rhodes22-list at rhodes22.org>
> Subject: Re: [Rhodes22-list] Curved Rudder | 84 Rhodes 22
> 
> Greetings all & Happy Holiday's.
> We just pulled the boat off Lake Sunapee in NH (11/24/18) as I guess the
> 2018 season is over. While I had the chance I took better pics of our
> "Curved Rudder" issue. The first pics were not very telling of the issue as
> these are. 
> I ask if there is knowledge on a repair for this issue or is a replacement
> in our future?
> Thank you in advance,
> Bob '84 Orion
> 
> 
> 
> -----Original Message-----
> From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> On Behalf Of Lowe,
> Rob
> Sent: Monday, February 20, 2017 10:12 AM
> To: The Rhodes 22 Email List <rhodes22-list at rhodes22.org>
> Subject: Re: [Rhodes22-list] Curved Rudder | 84 Rhodes 22
> 
> Bob,
> Almost looks like the rudder blade has twisted or warped??  Kind of hard to
> tell.  Not sure anyone has reported this as an issue before.  What material
> is the rudder blade made of? - rob
> 
> Rob Lowe
> 
> -----Original Message-----
> From: Rhodes22-list [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of
> Graham Stewart
> Sent: Saturday, February 18, 2017 11:35 PM
> To: 'The Rhodes 22 Email List' <rhodes22-list at rhodes22.org>
> Subject: Re: [Rhodes22-list] Curved Rudder | 84 Rhodes 22
> 
> Thanks for the pictures Bob. I can't be sure I can see the curve but it
> looks to me like there might be a bend at the join between the rudder and
> the head. That might be possible. I just don't know how the rudder itself
> could bend without breaking. That doesn't mean it can't happen.
> Graham
> 
> -----Original Message-----
> From: Rhodes22-list [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of
> C. Robert Lester
> Sent: February 18, 2017 9:11 PM
> To: The Rhodes 22 Email List
> Subject: Re: [Rhodes22-list] Curved Rudder | 84 Rhodes 22
> 
> Graham,
> Good point about the swollen side as you experienced. However, you can see
> by both pics here it is a different case. Pic #2 that has the rudder laying
> down and it shows the best example of the curve.
> Bob
> 
> -----Original Message-----
> From: Rhodes22-list [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of
> Graham Stewart
> Sent: Saturday, February 11, 2017 10:25 PM
> To: 'The Rhodes 22 Email List' <rhodes22-list at rhodes22.org>
> Subject: Re: [Rhodes22-list] Curved Rudder | 84 Rhodes 22
> 
> Bob:
> 
> Can you post a picture of the rudder? 
> I wonder if the rudder is curved or instead has "swollen" on one side due to
> water migration into the core - especially if the rudder has been exposed to
> freezing. When I rebuilt my rudder I found that there were large voids in it
> and undertook to fill them with epoxy. Removing any paint might show cracks
> and if so see if there is a pattern that shows the effect of internal
> pressure. Just a guess.
> 
> Graham Stewart
> Agile. R22, 1976
> Kingston Ontario Canada
> 
> 
> 
> -----Original Message-----
> From: Rhodes22-list [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of
> Michael Weisner
> Sent: February 11, 2017 4:41 PM
> To: The Rhodes 22 Email List
> Subject: [Rhodes22-list] Curved Rudder | 84 Rhodes 22
> 
> As the list admin, I received this "bounced" email this morning. I am not
> sure why it wound up in my inbox but it appears to have been sent to the
> list but did not reach the intended destination.  I am therefore forwarding
> it to the list.  Note to Bob: If you figure out why your post did not reach
> the proper destination, please let me know.  I hope that this helps to find
> a solution to your problem.
> 
> 
> 
> Mike
> 
> s/v Wind Lass ('91)
> 
> Nissequogue River, NY
> 
> 
> 
> 
> 
> 
> 
> From: C. Robert Lester [mailto:C.Robert.Lester at dartmouth.edu]
> Sent: Saturday, February 11, 2017 11:06 AM
> To: rhodes22-list-bounces at rhodes22.org
> Subject: Curved Rudder | 84 Rhodes 22
> 
> 
> 
> I have an 84 Rhodes 22, that came with a "slightly-curved" rudder? As you
> can imagine, when under power this applies a slight port steer. As
> interested as I am in what would have caused this slight curve to the
> rudder, I am more interested in repairing/replacing this issue.
> 
> 
> 
> Thanks in advance for your thoughts / suggestions.
> 
> 
> 
> Bob
> 
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