I have had a IdaSailor rudder on my M15 for about a year and am
generally pleased with it. The first thing I noticed about it was
how little effort it took to steer when reaching. With the stock
wood rudder, I was really hanging on the tiller when the boat was
heeled. Much less so now. As for speed and pointing, its hard to
say. I think good seamanship trumps gadgets every time.
I had left the rudder in the cockpit for a month or so, and today
when I was checking the boat I noticed the rudder had a definite bow
from just being supported at either end. I hope its not permanent.
Bob
M15 #208
SF Bay area
On Nov 28, 2005, at 5:18 PM, Larry E Yake wrote:
Regarding the Ida Sailor kick-up rudder, I would think you would be
experiencing a huge amount of weatherhelm before you had enough
torque to
make the rudder blade twist. The cheek plates are pretty
substantial. I
really doubt we're getting any twist or flex. The tiller doesn't
have any
of the flex feel that I've noticed on the stock M15 kick up rudder.
I've
only been using mine one season so I can't speak to the long term
durability issue other than to say the quality and strength of
construction look very good. The pointing ability doesn't seem to
be any
different than the stock rudder, which is a good thing. My stock
rudder
was one of the earlier, balanced models and I was reluctant to replace
it, but since it couldn't even be raised vertically in shallow water I
needed to do something. The foil shape is very good on the stock 17
rudder, so I was pleased that the kick-up rudder seems equal in
performance. I have no vested interest in Ida Sailor, and get nothing
from them for endorsements. I did get a discount on my rudder for
helping
with the design. I just believe it's a good product. The rudder
breaking
on the Santana is somewhat worrisome. I have also heard of a corrosion
problem on the aluminum cheekplates on one of the east coast boats,
which
was also blamed on substandard material. There are about a dozen Ida
Sailor M17 rudders out there last I heard. Anyone else having any
problems?
Larry
On Mon, 28 Nov 2005 19:32:55 -0500 <[EMAIL PROTECTED]> writes:
While those plastics no doubt offer some advantages, I would suspect
that
rigidity of the overall blade would be less than the factory rudder,
meaning
that when viewed from the top the tip of the rudder would want to
bow to
weather with weather helm and might well twist, putting the tip at
a
different angle of attack than the upper part of the blade if the
shear
center of the foil doesn't coincide with the center of lift, which
could
offset some of the gains of the "good" foil shape. Still, for some
people
it's probably a very good option, certainly better than getting your
transom
bolts popped.
Tod
M17 #408
BuscaBrisas (<= who's transom bolts got stretched significantly
once)
-----Original Message-----
From:
[EMAIL PROTECTED]
[mailto:montgomery_boats-bounces
[EMAIL PROTECTED]
On
Behalf Of Tom Smith
Sent: Monday, November 28, 2005 12:34 PM
To: For and about Montgomery Sailboats
Subject: RE: M_Boats: New Kick up rudder
Larry has an Idasailor rudder, Randy Graves has one, and I have one
that's
not yet installed. I'll let those guys speak regarding durability
over time
and performance, but I'm impressed with the quality of the build. I
wasn't
aware of a new, lighter version, or if the Montgomery blades can be
ordered
in a different hdpe material than what I got or not. It sure seems
industrial strength to me, and in my opinion it's a superior
solution to
grounding than the original slide-up design.
t
/)) Tom Smith & Jane VanWinkle
M15/345--Chukar
M17/496--Unnamed
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