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Old 01-16-2013, 03:12 PM   #21
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I see a lot of 1420's (and 1500's), but no 1440 listed at Defender. Do you know what the differences might be?
None at all. Looks like Sitex has the exclusive liscencing for North America. Check out the ComNav website. Better yet, give them a call (It's lunch time right now, though), they actually answer the phone.
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Old 01-16-2013, 03:37 PM   #22
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Here is the ComNav that I think goes with my situation:

ComNav Auto Pilot System For Inboard

And the remote station is only $190 more. I think this is the ticket.
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Old 01-16-2013, 04:55 PM   #23
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Originally Posted by GonzoF1 View Post
Here is the ComNav that I think goes with my situation:

ComNav Auto Pilot System For Inboard

And the remote station is only $190 more. I think this is the ticket.
Just so you know what you are getting. The control head is "a remote" in itself as it has about 25' of instrument cable attached to it. It unclips from the holder and you can use it remotely. You drill a hole in the helm and the cable stows neatly away. As far as I know there is no wireless remote for this unit.

Otherwise, it is a great unit.
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Old 01-16-2013, 05:15 PM   #24
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I'll give the Si-Tex a thumbs up.
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Old 01-16-2013, 06:13 PM   #25
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We have a Raymarine autopilot (X3 and ST70 control heads along with a wireless remote. We went with Raymarine even though we have Garmin chartplotters. We needed a chain drive unit and Garmin did not (and may still not) make one.

The unit itself works great. Despite NMEA0183 and 2000 connections to the chartplotters, it still does not work with some of the functions of the Garmin chartplotters. That said, it does do far more than we need.

We use it most all the time. I steer with my thumb rather than the wheel whenever possible. It has been completely reliable. We had the same basic unit on our previous sailboat and it worked with no problems for a number of years.
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Old 01-16-2013, 08:43 PM   #26
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It won't steer me to Alaska, will it? I hate the cold!

It has steered me to Alaska once. Maybe could do the same for you. Get a heater.

The model I have is the Commander P2. This was the model recommended by my local distributor. This is the web site:

ComNav

Click on the Commander P2. Can I make it any easier for you? Check out web sites selling it for prices. I bought mine about 5 years ago and have had no problems.

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Old 01-16-2013, 08:54 PM   #27
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ComNav Had our for 15 years, great equipment and the laptop also drives it perfectly. Steers better that we can. Great product!

ComNav 1001 with a remote on the command bridge, it drives the old Wagner pump.
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Old 01-16-2013, 09:19 PM   #28
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Quote:
Originally Posted by GonzoF1 View Post
Here is the ComNav that I think goes with my situation:

ComNav Auto Pilot System For Inboard

And the remote station is only $190 more. I think this is the ticket.

Be sure of the cylinder size of your ram. You do not want to oversize the pump by very much. It will overshoot on correction and constantly run. The Octopus pump is slightly adjustable. You will be very happy with the 1420 and should have no trouble installing yourself. If you do call them. Chances are you will get Shafiq as the tech. He designed it and owns the place.
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Old 01-16-2013, 10:29 PM   #29
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Be sure of the cylinder size of your ram. You do not want to oversize the pump by very much. It will overshoot on correction and constantly run. The Octopus pump is slightly adjustable. You will be very happy with the 1420 and should have no trouble installing yourself. If you do call them. Chances are you will get Shafiq as the tech. He designed it and owns the place.
10.2 c.i.d.

One thing I don't see on the Si-Tex units is a remote head unit to put at the lower helm. Am I missing it?
The ComNav has them for only $190 at Defender.
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Old 01-20-2013, 08:33 AM   #30
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10.2 c.i.d.

One thing I don't see on the Si-Tex units is a remote head unit to put at the lower helm. Am I missing it?
The ComNav has them for only $190 at Defender.
Defender has them (they did last year) and it's about the same price. Call them.

http://www.defender.com/product.jsp?...714&id=1696701
Yikes...I see the price jumped!!
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Old 01-20-2013, 09:40 AM   #31
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We have a Standard Horizon feeding our Raymarine X0 corepack a ST70 color control head and best of all the remote control which is cheaper then a second control head for the flybridge. The system drives our boat better then I can.
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Old 01-20-2013, 10:13 AM   #32
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We have been using the Garmin GHP 10 for several months now and really, really like it.
The Trawler Beach House: Installing Our Garmin GHP 10 Autopilot
I have installed EVERY autopilot on the market and have had to seatrial and test each after installation. We decided on the Garmin for our own boat based on past experience and owners feedback. Good luck on whatever you choose. Chuck
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Old 01-20-2013, 10:15 AM   #33
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On the Garmin autopilots, they don't use rudder position to determine the helm position. They use a flow rate sensor (much like those in fuel flow meters). When the autopilot senses you move the wheel, it will disengage. If you keep steering, you'd never know it was on. You can set the sensitivity and time that it will let you drive before disengaging the autopilot.

It's VERY nice when on autopilot that you can dodge a crab pot float or piece of wood, and then just let go of the wheel and the boat takes the helm back and gradually turns back to the track you were on. It also won't slam you back to a course, but instead does a nice gentle turn back to track. It's quite nice and only something you will see on a Garmin unit.
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Old 01-21-2013, 12:03 AM   #34
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Can someone explain rudder feedback to me, please? There are some units that have it, some call it built-in, virtual, etc. Do I want it, need it, or even care? ;-)
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Old 01-21-2013, 10:18 AM   #35
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Some older units still require rudder position in order to work. This adds another level of complexity and issues with constant calibration. Without the need for rudder position the system uses the flow rate and direction of the fluid in the system to point the boat in the right direction. Once on a course, the system simply "hunts" for a place where the boat stays pointed in the right direction and requires no flow to keep it there.

If the engines are trimmed, then that must be zero rudder angle (or a slight crab depending on the currents). The really cool thing is it doesn't lock you out of the wheel when engaged. You can still turn the wheel (which causes a temporary disengagement). Another nice thing is you can watch your rudder position, and use engine balance to trim for zero rudder. That is the most efficient of all trim setups. It's a clever way to go.
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Old 01-21-2013, 10:59 AM   #36
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I am not sure I totally understand your answer. I was thinking that rudder feedback meant that it turned the actual helm wheel or not. Wrong?
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Old 01-21-2013, 11:05 AM   #37
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Quote:
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I am not sure I totally understand your answer. I was thinking that rudder feedback meant that it turned the actual helm wheel or not. Wrong?
Rudder feedback is a devise that connects to your steering quadrant. It sends info to your autopilot to tell the autopilot what position the rudder is in. It is strictly a sensor.
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Old 01-21-2013, 11:17 AM   #38
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Would the VDO rudder position sensor I have give it the info it needs without having to run new wires from the flybridge to the rudder box?
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Old 01-21-2013, 11:46 AM   #39
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Would the VDO rudder position sensor I have give it the info it needs without having to run new wires from the flybridge to the rudder box?
Maybe but the Simrad rudder feed back unit is more robust. Here is a picture of our Simrad rudder feedback unit and VDO rudder indicator, both connected to our rudder. The Simrad rudder feedback unit has 2 wires and feeds the Simrad Computer which is mounted centrally located in the engine room. The pump, control heads, compass and rudder feedback all are wired to it.
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Old 01-21-2013, 11:49 AM   #40
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I think it depends on the manufacturer. You might have to use their sensor. You could still use the same position for mounting the arm I'd imagine. That was one of the reasons I chose Garmin. The elimination of the rudder input greatly simplifies installation and since it's an open loop system, the wheel is always available to me.
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