Thanks for info. I use it primarily when motoring. Upwind it does pretty
well. Downwind in fillowi g seas not so well.
Bill Walker
Sent from AOL Mobile Mail
On Monday, October 12, 2015 Michael Brown via CnC-List <cnc-list@cnc-list.com>
wrote:
I had a Raymarine ST4000 wheel drive that worked but in some circumstances
not well. Trying to use it upwind into waves had it steering all over the
place, and
playing with the damping settings didn't solve it. At lower speeds it would
hunt a lot.
At the Toronto boat show I spoke with the people at the Raymarine booth, and was
told to add a rudder sensor. Since I have no play in the steering and the
geometry
doesn't change I also wondered why it would make a difference. The answer was
that the software handles the steering differently when it can measure the
rudder
angle directly rather than stepping the drive motor and calculating the angle.
I added the sensor. My guess is that it didn't do much. Maybe a bit more stable
upwind, still not great though.
Michael Brown
Windburn
C&C 30-1
Date: Sun, 11 Oct 2015 12:06:07 -0400
From: "Rick Brass" <rickbr...@earthlink.net>
To: <cnc-list@cnc-list.com>
Subject: Re: Stus-List Autopilot Recommendations
Message-ID: <000001d1043e$bd619ef0$3824dcd0$@earthlink.net>
Content-Type: text/plain; charset="us-ascii"
>From all the comments over the past few years I know that David's comment is
true. But I have always wondered "WHY?". What changed to make the rudder
position sensor essential?
Over the years I've had an Autohelm tillerpilot (800 I think) on a 27 and a
Raymarine 1000 tillerpilot on my 25 with tiller steering. A Raymarine 3000
belt driven wheel pilot. And there is a Navico 5000 wheel pilot on my 38
(I'm sure it isn't older than dirt, but it is almost older than plastic).
None of these has a wheel sensor - relying only on heading information from
the fluxgate compass built into them to steer the boat. All of them worked
well.
The Navico took a bit of adjustment to the settings to optimize performance
(I suspect the PO had never set it up since the wheel lock to lock setting
was the default and not the proper number for the boat), but once set up the
wheelpilot will steer the boat for miles and miles without a variance from
the desired heading of over a degree or two.
So what has changed with the newer autopilots to make the rudder position
sensor so important?
Rick Brass
Imzadi C&C 38 mk 2
la Belle Aurore C&C 25 mk1
Washington, NC
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