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Old 11-12-2013, 11:47 PM   #1
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Comnav 1420 Autopilot Advice

I've done a search and found a bit of information on the Comnav 1420 but I would like some input from those of you that have experience with this unit.

I have a 36' trawler that had a Benmar autopilot installed, however the electronics failed but the pump looks hardly used and works great. A local electronics supplier has offered me a stellar deal on a Comnav 1420 with two control heads.

I know Comnav has a good reputation, and the 1420 does the two things I need - steer a course or follow a route from my chart plotter. The problem is, it looks so simple I wonder if anyone has had experience with how it performs.

Thanks in advance for any advice or comments.
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Old 11-13-2013, 01:23 AM   #2
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Comnav...........

Had ours for 12 years and not a hick-up.
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Old 11-13-2013, 09:55 AM   #3
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Quote:
Originally Posted by rochepoint View Post
Comnav...........

Had ours for 12 years and not a hick-up.
Hey Mike - I think I have seen your boat while coming and going from Tsehum Harbour.

Thanks for the feedback.
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Old 11-13-2013, 11:33 AM   #4
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Quote:
Originally Posted by hobbystuff View Post
. The problem is, it looks so simple I wonder if anyone has had experience with how it performs..
It is simple and that is why it works so well! I had a ComNav 1001 on my Mainship Pilot 30 and it was the best AP I ever had. Wish my present boat had one.
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Old 11-13-2013, 01:07 PM   #5
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many commercial guys us Comnav. That is an indicator.

My 1001 has not been entirely trouble free, but anytime I have needed help or repair, they are super fast to respond and quite reasonable in price for any repairs.

Ask for Satish if you need help with system design or config, or general help.
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Old 11-13-2013, 01:26 PM   #6
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I have the Si-Tex branded version - SP-70. Installed it myself about a year ago. Simple is good.



Autopilots : SP-70 Handheld Autopilot System
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Old 11-13-2013, 01:56 PM   #7
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PO installed a 1420 on my boat 13 years ago. Great unit. No issues for him or myself. High quality construction. Easy to use and calibrate. Holds a course very well.
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Old 11-13-2013, 02:43 PM   #8
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Quote:
Originally Posted by SeaHorse II View Post
It is simple and that is why it works so well! I had a ComNav 1001 on my Mainship Pilot 30 and it was the best AP I ever had. Wish my present boat had one.

I had the 2001, great units.
Was on a troller/dragger.
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Old 11-13-2013, 03:08 PM   #9
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I just called ComNav to confirm compatibility with my current pump, didn't realize they are just across the pond from me.

Very helpful fellow on the phone, reassured me my pump would work just fine and gave me some pointers on install.

I'm going to pull the trigger on the 1420 and put it on my winter to do list.

Thanks for the feedback.
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Old 11-13-2013, 09:26 PM   #10
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Quote:
Originally Posted by SeaHorse II View Post
It is simple and that is why it works so well! I had a ComNav 1001 on my Mainship Pilot 30 and it was the best AP I ever had. Wish my present boat had one.
Ditto ! I have run almost every brand, there is no comparison
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Old 11-13-2013, 10:18 PM   #11
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Quote:
Originally Posted by SeaHorse II View Post
It is simple and that is why it works so well! I had a ComNav 1001 on my Mainship Pilot 30 and it was the best AP I ever had. Wish my present boat had one.
I had the 1001 on Volunteer and the pilot did it's job perfectly for 10 years

I second comnav units for reliability

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Old 11-15-2013, 04:32 PM   #12
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I have the Si-Tex branded version - SP-70. Installed it myself about a year ago. Simple is good. Autopilots : SP-70 Handheld Autopilot System
I think this is going to be a upgrade for next year, I have Si-Tex radar & while talking with a tech during the install this year the SP-70 is what he recommended. Never thought AP would be much use on the river but after helping to deliver a couple of boats with it I have found it very useful to set a heading & not to hold the wheel & make corrections for the effects of changes in current or wind.
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Old 11-18-2013, 08:03 AM   #13
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I also have a Sitex SP-70. Simple easy to use, does a nice job. Frees up the helm slave (ME).
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Old 11-18-2013, 11:30 AM   #14
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I have a Comnav but no long-term experience. The surveyor was all excited when he saw it, though. They have a very good rep.
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Old 11-18-2013, 09:29 PM   #15
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I have a 1001 now that is not working correctly. Turn it to "Pilot" and its ok for about 10 seconds then veers off hard to starboard. Thinking about taking the control panel off and sending to Comnav for updating or repairing, but really don't know if this is the problem. Is there a way to "factory reset"?
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Old 11-18-2013, 09:39 PM   #16
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From the manual:
THE RUDDER TURNS HARD OVER TO ONE SIDE.
Check the rudder follower for correct operation.
Check the rudder drive for correct operation (i.e. sticking
relays, sticking solenoid valves, etc.).
If the rudder appears to move normally with the autopilot in
POWER STEER, but goes hard over with the autopilot in
PILOT, recheck the rudder follower and rudder drive
connections in the distribution box for correct hook-up.
Perform the dockside set-up again.
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Old 11-18-2013, 10:12 PM   #17
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Thanks Mike, its now time to learn all about the 1001.
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Old 11-18-2013, 11:00 PM   #18
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Here is the manual in PDF form:
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Old 11-19-2013, 12:12 AM   #19
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Thanks, I appreciate the help.
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