I was aware of the helm
alert alarm. It wasn't that. The pilot would alarm it was off course when in fact it was on course. This would only happen in Nav mode.
But it in heading mode it would often be way off course, enough to be in alarm, yet would have little or no rudder angle to correct it.
was sometimes OK, other times just awful.
I took some video and posted it on youtube, and e-mailed a link to Coursemaster. They said it was very helpful, and sent me a new software
chip. I have to admit, the wind angle steering
wa smuch improved after that.
Here are the videos:
On this one, the AWA is 30 degrees, the CM85 thinks it's 53. Then I try tochange the angle, but the pilot just ignores these attempts. This was a common problem with it, but fixed with the new software
100 8976 - YouTube
Off course by 10 degrees, but only 2 degrees rudder applied.
100 8417 - YouTube
On course (about as good as it got) but off course alarm going.
100 8499 - YouTube
Ultimately, Coursemaster sent their 2IC out to my boat to check the installation
. He did not find fault with it. Not long after his visit the rudder reference unit started to fail again.
By this time, as we were planning some ocean passages, I had bought a new Simrad
autopilot. (Which is absolutely fantastic!)
I had thought the CM85 would be useful as a backup, just in case. (As an earlier poster had done) But the rudder reference unit is not working again, so currently it isn't even any use as a spare.
I'd probably sell it, but my conscience would bother me, so right now it's still in the boat doing nothing.