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Matt Gurnsey
Dealer


Joined: 11 Nov 2008
Posts: 1532
City/Region: Port Orchard
State or Province: WA
Photos: Kitsap Marina
PostPosted: Fri Oct 05, 2012 4:00 pm    Post subject: Reply with quote

breausaw wrote:
I have the TR-1 gold on our 25 with 150 horse mercury; I like a big kicker. As long as you have hydraulic steering there's no reason why this autopilot wouldn't work on your boat. It works off a gyro compass does not require a rudder sensor.


ACtually, there is a reason it won't work.

Autopilot pumps are sized to the ram they are working, and too small a pump won't be able to move enough fluid to turn the motor. Too large a pump will move too much fluid and cause very fast (and dangerous) turns, and eventual; oscillation of the boat.

I've been aboard a 48 Sportfish that started chine walking at 25 knots because of too large a pump. Definately an E Ticket ride. (The KVH Satillite TV antenna never lost it's fix, which impressed me).

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Matt Gurnsey
Kitsap Marina
www.kitsapmarina.com
360-895-2193
(888) 293-7991
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Matt Gurnsey
Dealer


Joined: 11 Nov 2008
Posts: 1532
City/Region: Port Orchard
State or Province: WA
Photos: Kitsap Marina
PostPosted: Fri Oct 05, 2012 4:02 pm    Post subject: Reply with quote

Sea Angel wrote:
Just a silly little UBI I found while checking my ST6001 while on a work rack.

I centered my OBs with the AP in STBY. I engaged (AUTO) the AP and used the +/- control buttons as I would do to change headings while underway. The hydraulic pump drove the OBs in the desired direction. It could be driven continously till the ram hit the end if you choose. I could follow the OBs position on the bargraph at the bottom of the 6001 display . This test was very helpful to see the range and functionality of the position sensor and allowed me to stop the direction of travel before the rams did hit the end of travel. One other item that raised its head was the centering position became more evident as I had a 5 degree difference between the left and right ends of travel, but I find this of no real concern at this time.

Do consider having shore power and the charger on while playing with this. You can run some interesting loads on the battery. Who knows what a low battery voltage would do the controller's memory or circuits.

Art


BTW- In the autopilot set up it should be possible to set stop points for the motors before the engines hit their stops.
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Sea Angel



Joined: 29 Dec 2003
Posts: 736
City/Region: Virginia Beach, VA
State or Province: VA
Photos: Sea Angel
PostPosted: Fri Oct 05, 2012 5:16 pm    Post subject: Reply with quote

Hi Matt;
If my memory is correct I set my limits to +/- 18 or 20 degrees. I will have to go thru the factory setup/calibration procedure to verify. I think I cut it too close on the limits, because if the center is off by enough the limit will not be met and the hydraulic pump will keep pushing the ram in that direction. The old analog loop trick of send and answer to stop the machine.

To the books....to the books... to the books.

I guess I will have to wait till I can get at the boat after the carbs, 100 hr service and water pumps (just high time 440 hr PM) are done. $Sad $Sad

Art

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Art ka1rx
CBRAT #208
2005 CD25 #075 SEA ANGEL (SOLD)
USCGAUX (RET), USN(RET)
Broadcast TV ENG(RET)
ka1rx@verizon.net
SKYPE: Art.Bartlett4
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breausaw



Joined: 18 Jan 2006
Posts: 1222
City/Region: Anchorage
State or Province: AK
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: Triple J
Photos: Triple J
PostPosted: Fri Oct 05, 2012 7:52 pm    Post subject: Reply with quote

Matt Gurnsey wrote:
breausaw wrote:
I have the TR-1 gold on our 25 with 150 horse mercury; I like a big kicker. As long as you have hydraulic steering there's no reason why this autopilot wouldn't work on your boat. It works off a gyro compass does not require a rudder sensor.


ACtually, there is a reason it won't work.

Autopilot pumps are sized to the ram they are working, and too small a pump won't be able to move enough fluid to turn the motor. Too large a pump will move too much fluid and cause very fast (and dangerous) turns, and eventual; oscillation of the boat.

I've been aboard a 48 Sportfish that started chine walking at 25 knots because of too large a pump. Definately an E Ticket ride. (The KVH Satillite TV antenna never lost it's fix, which impressed me).


http://www.tigergps.com/garmintr1gladiator.html

Garmin TR-1 Gladiator Autopilot Selection Guide

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Jay

2007 22ft C-Dory Triple J 2007-2012
2007 25ft C-Dory Triple J 2012-2018
Boatless for now but looking
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