[C38] Autohelm / Raymarine Type 1 linear drive installation

[Max Soto]

 I have the Type 1 (12in stroke), so as Davd pointed out,  a small
modification might be needed to the rudder stops, in order to make it work,
but not that big of a project.....
I was planning to install it directly to the radial wheel, with only a 8"
radius instead of the 10" tiller arm, but still it should work.. I hope!
 This unit came with  a complete Autohelm ST6000 autopilot, but is that old
 (around 20years), that is not NMEA compatible, and that's why I want to
remove the wheel pitlot assembly and install it with the ST4000+ display.
Despite what RM support said, now I find it really hard to make it work
like this, but I'll give it a try. As Tom said, the wheel pilot is very
easy for connections and maintenance, but despite the patented Troncalli's
shock cord solution (which BTW works great most of the time!!), the wheel
pilot slips when the wind is blowing hard and the weatherhelm
increases...... So the linear drive should be more reliable...
 I've heard great comments about the Nexus and Simrad/ Robertson, but
because of the price, they are out of the question. If I don't make the
linear drive work, I'll stick with the wheel pilot, or maybe I'll just
install both autopilots, hopefully, the new 20 years old ST6000 might work
and I'll have a very good back up.

Have someone installed any brand of drive unit directly to the radial
wheel??? Edson used to reccomed it, but  years ago, they changed their
mind, started reccommending the tiller arms that they started producing.

Regards,
Max

2011/11/29 David Epstein <davidepstein at earthlink.net>

>  Max,
>
> Do you know if it is a Type 1 (12 in stroke) or a Type1L (16 in stroke)?
> If it is a Type 1, my notes indicate that it rated for up to a 22,000 lb
> boat, requires a 10" tiller arm, and it has a maximum of +/-35 degrees of
> rudder travel.   The 1L is good up to 33,000 lbs, requires a 16" tiller arm
> as is also limited to +/-35 degrees.
>
> SuperStar's rudder has about 90 degrees of travel (+/-45), so if your boat
> has similar range, you may have to modify your stops on each side so that
> you don't have a problem when the linear drive is in bypass.  I would think
> you could be able to make the Raymarine unit work on a 38.
>
> When I did my research, I concluded that the absolute best solution for
> SuperStar would be the Nexus/ComNav HP-40 integrated linear drive (or the
> AP-23 with a separate pump), as it is fast, powerful and has up to +/-50
> degrees of travel with the specified tiller arm length.  I have not yet
> purchased a Nexus drive unit, so I can't tell you about any firsthand
> results...
>
> David Epstein
> SuperStar, #122
> Marina del Rey, CA
>
>
>
>
> At 12:23 PM 11/29/2011, you wrote:
>
> I got a new one of this for free, and according to Raymarine Support,  it
> can be installed with my ST400+ wheel pilot display.
>
> Does anyone has installed one of this below deck drives on a C38 ?? If so,
> any installation pics or recommendations will be appreciated!
>
> Regards,
>
> --
> Max Soto
> C38 #198 ESTANCIA
> Puntarenas, Costa Rica
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-- 
Max Soto
C38 #198 ESTANCIA
Puntarenas, Costa Rica
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