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08-29-2015, 06:34 AM
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#1
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Senior Member
City: Marietta
Vessel Model: Cobalt 246
Join Date: Feb 2015
Posts: 165
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Autopilot drifts off course- Raymarine
Greetings. I've got a 6 year old Raymarine autopilot that has just started becoming unreliable. Sometimes, usually after a recent input change, it seems to get locked up in a given rudder orientation and the boat will start moving in a big circle. If I input a change, it will respond, but it seems like the interface between heading and rudder changes to maintain that heading is intermittent or failed altogether. Has anyone encountered a similar problem?
David Hughes
2009 Leopard 37 Powercat for charter in Cape Coral, FL
Florida Catamaran Charter the "True Love"
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David Hughes
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08-29-2015, 08:13 AM
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#2
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Guru
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,119
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the first and easiest thing to do is to make sure the rudder feedback linkage is
ok. sometimes the fall o get bumped ff ad give symptoms like that....assuming your model has one.
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08-29-2015, 08:54 AM
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#3
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Senior Member
City: Marietta
Vessel Model: Cobalt 246
Join Date: Feb 2015
Posts: 165
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Quote:
Originally Posted by psneeld
the first and easiest thing to do is to make sure the rudder feedback linkage is
ok. sometimes the fall o get bumped ff ad give symptoms like that....assuming your model has one.
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Thanks!
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David Hughes
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08-29-2015, 09:05 AM
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#4
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Senior Member
City: MD
Vessel Name: Blue Yonder
Vessel Model: 37
Join Date: Mar 2013
Posts: 346
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A friends autopilot started acting up and going off on headings of its own. It turned out that he had stored a portable vacuum next to the autopilot fluxgate compass. The magnets in the electric motor screwed up the whole system.
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08-29-2015, 10:24 AM
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#5
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Guru
City: Stuart FL
Vessel Name: Lucky Lucky
Vessel Model: Pacific Mariner 65
Join Date: Aug 2013
Posts: 2,759
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In my previous boat I had stored a metal stool near the A/P compass. That did not help accuracy at all.
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Howard
Lucky Lucky
Stuart, FL
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08-29-2015, 12:24 PM
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#6
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Senior Member
City: Alaska
Vessel Name: Nimbus
Vessel Model: Californian
Join Date: Jun 2013
Posts: 120
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How near is too near the compass?
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08-29-2015, 12:31 PM
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#7
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Guru
City: South FL
Vessel Name: Oliver
Vessel Model: Nordhavn 47 Hull# 12
Join Date: Apr 2013
Posts: 3,607
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Quote:
Originally Posted by superdiver
How near is too near the compass?
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Around a meter is what most companies state.
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Thanks, Oliver
M/V Oliver
Nordhavn 47 Hull #12
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08-29-2015, 01:03 PM
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#8
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Guru
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,119
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If you don't move the object while on AP...it shouldn't affect I.
That is what a deviation card is for on your steering compass.
When in doubt....move it while watching the compass.
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08-30-2015, 08:53 AM
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#9
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Senior Member
City: Marietta
Vessel Model: Cobalt 246
Join Date: Feb 2015
Posts: 165
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Thanks to all for the helpful suggestions!
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David Hughes
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08-30-2015, 11:33 AM
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#10
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Guru
City: gulf coast
Join Date: Jun 2014
Posts: 3,440
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Many systems remain in sleep mode when off. Disconnect all power to force a complete reboot.
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08-30-2015, 05:42 PM
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#11
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Technical Guru
City: Wilmington, NC
Vessel Name: Louisa
Vessel Model: Custom Built 38
Join Date: Jan 2014
Posts: 6,194
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Watch the displayed heading and take the boat on a circle, manually. Heading should clock smoothly around the compass, if not, heading sensor is giving garbage. Also steer rudder from stop to stop, displayed rudder indication should sweep smoothly.
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08-30-2015, 05:45 PM
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#12
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Senior Member
City: Marietta
Vessel Model: Cobalt 246
Join Date: Feb 2015
Posts: 165
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Quote:
Originally Posted by Ski in NC
Watch the displayed heading and take the boat on a circle, manually. Heading should clock smoothly around the compass, if not, heading sensor is giving garbage. Also steer rudder from stop to stop, displayed rudder indication should sweep smoothly.
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Another great tip. Will try all these tricks when I get back down to the boat on the 20th. Thanks.
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David Hughes
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08-30-2015, 07:39 PM
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#13
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Guru
City: Cypress Landing Marina (NC)
Vessel Name: Heron (2)
Vessel Model: '88 Cape Dory 28 Flybridge #115
Join Date: Nov 2014
Posts: 1,305
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Quote:
Originally Posted by psneeld
the first and easiest thing to do is to make sure the rudder feedback linkage is
ok. sometimes the fall o get bumped ff ad give symptoms like that....assuming your model has one.
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Like this:
I've also noticed that when my wife starts waving around cast iron frying pans (for whatever reason), things get wonky with the AP.....
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Steve
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