[C38] Autohelm / Raymarine Type 1 linear drive installation

[Joseph Launie]

Max,
     I found the wheel pilot added drag to the wheel. I removed it.  
Since I only do short races and day sails, I find the wheel now is much 
lighter to the touch. Joe

On 11/30/2011 11:23 AM, Max Soto wrote:
>  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 
> <mailto: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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