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Considering Garmin Autopilot

Old 02-13-2012, 02:49 PM
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Default Considering Garmin Autopilot

Hi All.

I have a 60 foot, 20 ton 1929 Chesapeake Bay Oyster Buyboat running a Garmin Electronics suite that includes the 5208 chartplotter. The helm control is a Capilano HC5373 and the cylinder is a Teleflex BA 175-9TM. The engine is a 1930's era Cat D13000, that turns between 500 - 700 rpms cruising at 9+ knots.

I'm looking to install an Autopilot system, and am considering the Garmin GHP10 Autopilot system with the upgraded 2.1L pump. Obviously my electronics are current, but the engine is way antique.

I'm looking for any insight, words of wisdom, warnings or recommendations that may be available.

Thanks.
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Old 02-13-2012, 02:58 PM
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Would love to see some pics of your boat. It sound very cool! Sounds cool that you have an 80ish year old engine still turning.

Garmin makes a very good pilot and matched to your 5208 would work well. Just make sure the pump matches up to the cubic inches of your steering system's fluid size. It sound like you have done this check based on the fact that you are upgrading the pump.
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Old 02-13-2012, 03:09 PM
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I have had great luck with the Garmin GHP10 system and hopefully you will too. Good integration with the MFD, the shadowdrive unit is nice. As mentioned above, make sure the pump will integrate with your steering system and you will be good to go. The key to making the unit work well is to make sure the compress ball is properly installed and no magnetic interfence and a good seatrail setup.
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Old 02-13-2012, 03:20 PM
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I recently went with the GHP10 and the best decision I EVER made was the upgraded 2.1L pump. Its quick, its extremely quiet, and its not working its heart out like a smaller (but mathematically acceptable) one would.

Am totally happy with GHP10 married to my 4212. (All self-installed)
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Old 02-13-2012, 03:25 PM
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I would think Simrad is a safer choice for such a boat.
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Old 02-13-2012, 03:57 PM
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Originally Posted by abbor View Post
I would think Simrad is a safer choice for such a boat.
agreed, with rudder ref unit....
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Old 02-13-2012, 03:58 PM
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Originally Posted by abbor View Post
I would think Simrad is a safer choice for such a boat.
Abbor, why do you think Simrad would be a safer choice? Size and weight of the boat? Speed and RPMs? Can you add insight? Thanks
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Old 02-13-2012, 05:50 PM
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Simrad has a true rudder feedback system so it knows where the boat is turning. Also simrad has been the leader in big boat pilots and garmin is more in the center console realm
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Old 02-14-2012, 02:38 PM
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I would go with an AP35 with a J3000X junction box & an RPU80 pump for the system you have.
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Old 02-14-2012, 02:57 PM
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Are you on the Chesapeake now,Scott? I worked on your boat years ago in Deltaville while she was being renovated.She was impressive. I have a rebuilt 44' deadrise (1948) now but have aspirations to move to a buyboat for more comfortable cruising in a couple years.
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Old 02-14-2012, 04:21 PM
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Pics!!!!!
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Old 02-14-2012, 09:50 PM
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I know several boat owners that state Si Tex AP's are the most reliable choice, but you have all Garmin electronics so I guess it makes sense for you.
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Old 02-15-2012, 05:59 AM
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Rudder feedback is a must on a inboard boat
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Old 02-15-2012, 06:21 AM
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If you want to have the rudder feedback, just take the GHP 12, the proper pump and a resistive rudder feedback unit. You can also add the shadow drive.
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Old 02-15-2012, 06:49 AM
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I would not use a Garmin on a larger boat. A unit with a rate gyro will steer much better at slower speeds.

My experience is a Garmin on my current 31' CC, a simrad on a 42' Post, and a Furuno on a 45' sailboat. The Furuno was not fancy but has the best steering performance hands down-particularly in quartering seas. The Simrad is 13 years old (so no rate gyro) and has never had a failure-damn reliable. The Garmin is the obvious choice for a high speed CC, but there are a number of things about the design I do not like for larger boats.
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Old 02-15-2012, 07:38 AM
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I have a Garmin TR1 Gladiator with the higher volume pump on a 58 foot and it runs very well at idle which is approximately 5 knots. No problems at all, I love it.

Having said that, I beleive Garmin is about to announce something new relative to their auto pilot...
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Old 02-15-2012, 07:58 AM
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The real deal comes down to support. Garmin simply does not understand big boats. Simrad does - they are the masters at it. I love Garmin, own a tr-1 and have all garmin stuff on my boat. But on a 60 foot boat, I would have a Simrad. And I used to sell and install both. Any inboard boat got Simrand or Furuno in our store.
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Old 02-15-2012, 10:19 AM
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I won't make any recommendatoons for this boat/poster as I know nothing about boats this size. Wish I had this problem!!

But regarding some of the other posts:


Originally Posted by narrab View Post
Rudder feedback is a must on a inboard boat
Why is that? My last AP, a Raymarine S1G (Rate Gyro unit with rudder feed****** was TERRIBLE!! Nothing but problems for years with it, including the rudder ref unit. My curent boat, 18,000 lb twin desiel INBOARD, has the Garmin GHP10 intalled with no rudder ref unit. This unit performs flawlessly, at any speed, doing any thing. With or withoug rudder feedback makes no difference to wether the boat is inboard or not.


Originally Posted by scooperfl View Post
I would not use a Garmin on a larger boat. A unit with a rate gyro will steer much better at slower speeds.
Again, the rate gyro unit on my 28', 6000 lb outboard boat was terrible. The Garmin AP (whcih I am not sure if it includes a rate gyro or not??) works perfect, on my 30' 18,000 lb boat.

Furthermore, my GHP10 will hold my boat in place (virtually anchored) in a 2 knot current. It doens't get any "slower" than that. And, it will do that in forward, OR reverse which is pretty amazign if you ask me.

Originally Posted by scooperfl View Post
The Garmin is the obvious choice for a high speed CC, but there are a number of things about the design I do not like for larger boats.
What don't you like for larger boats? Again, I know nothing about large boats, so can't comment on it, but curious what you think the issues are.


Originally Posted by RaySea Lady View Post
I have a Garmin TR1 Gladiator with the higher volume pump on a 58 foot and it runs very well at idle which is approximately 5 knots. No problems at all, I love it.
And there you go, real life BIG boat performance. Still waiting for my invite to go for a ride in that thing!!

Originally Posted by RaySea Lady View Post
Having said that, I beleive Garmin is about to announce something new relative to their auto pilot...
Now that is a tease!!
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Old 02-15-2012, 10:42 AM
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Take into consideration that you will need Tach info for the Garmin as well.Sometimes a tooth counter or an added post on the alternator is required. Im just making sure you know you need an analog Tach signal before you buy the unit
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Old 02-15-2012, 10:46 AM
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Birdman.. Most owners with inboards still want to see their rudder position..Yes,personally I think its dumb. If you need to know your rudder direction you have no business behind the helm IMO. But most people do like to see their rudder posion,even on boats like yours
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