Marine Electronics Forum - Simrad AP 11 Question / Overcorrecting

THE HULL TRUTH is the world's largest FREE network for the discussion of Boating & Fishing. Whether you're researching a new boat, or are a seasoned Captain, you'll find The Hull Truth Boating & Fishing Message Forum contains a wealth of information from Boaters and Sportfishermen around the world.

06-04-2007, 08:16 PM
My AP 11 on my 2001 Grady was not working when I bought my boat several months ago. The problem was a bad linear feedback which I replaced. The unit works fine trolling but up on plane it overcorrects too much resulting in mini S turns. I found out later that the dealer did a master reset trying to fix the unit. I ran auto tune but the unit still overcorrects at speed. Is there a setting I can get to to slow down the rudder response. I have read the Manuel but could not find the sequence for adjusting the rudder response. ;?

06-05-2007, 09:35 AM
Talk to a dealer or Simrad. On mine I changed the following paramters: RUDDER FR .14 TO .19
CRUDDER FR .69 TO .74. The problem of S turns at planing speed solved. Your values may differ, but you get the idea. Also, try re-reading the manual.

06-05-2007, 11:22 AM
Gary, email or call me with your settings. There are high and low speed rudder values. Your HI should be around .20 for that boat.

06-05-2007, 12:15 PM
On an AP-14 you would adjust the GAIN to correct the problem you described.

06-05-2007, 06:19 PM
On an AP25, you wouldreduce the parameterRudder LO to fix that problem, assuming it occurs at speeds higher than 5 kts (if it occurs at speeds lower than 5 kts, you would reduce rudder HI)

06-05-2007, 07:49 PM
Guys, he has an AP-11, not others with completely different software and parameters to adjust.

Search Engine Friendly URLs by vBSEO 3.2.0