[C38] Autohelm / Raymarine Type 1 linear drive installation

[Richard West]

Hi David,

We had the Nexus (Comnav) autopilot electronics on Legacy for about 10,000
miles and it performed well except for one problem we were never able to
solve.  We would get an error warning every four hours or so but it
wouldn't cause any problems.  This was a model they were selling 10 years
ago so I doubt it has any resemblance to their current units.  Before
deciding to replace the unit, I called their tech support and they were
very helpful.  They told me to send it in and they would evaluate the unit.
 All in all, I was very impressed by the company and their products.

Now that we're replacing all the electronics, we're going with the Simrad
AP24 course computer.  From what I understand, Simrad (Navico) bought
Robertson.  I hope to have it installed in the next few weeks.  I'll let
everyone know how it works.

As for the drive, we had an old hydraulic pump unit made by WH.  It's
worked well.  It uses a Hynautics cylinder and a 1/4 HP motor.  We're
replacing this with a more modern helm pump and a new cylinder.

Rich, Legacy, #360



On Tue, Nov 29, 2011 at 12:55 PM, David Epstein
<davidepstein at earthlink.net>wrote:

>  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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