Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
We use a Raymarine TillerPilot ST1000+. It's attached to our starboard catbird seat's inboard leg using a Shakespeare VHF antenna mount. I ran power direct from the battery through a fuse, and I also ran the data cables from our GPS to it. It was pretty easy to install, and a bit of a chore to initially calibrate it. However, the problems really weren't related to the TP, but to the amount of traffic I need to do the calibration circles around. Elliott Bay in Seattle is a busy place.
Ours (also a TP1000) was set up by the PO. I have used it exactly 2 times. It steers the boat in a wild series of arcs and circles. its a load of fun but you never know where you'll end up.
Of the two most popular brands, Simrad and Raymarine, I think you'd be satisfied with either one. I have a Raymarine unit that's needed service twice in the last 6 or 7 years, but if I needed to replace it, I would seriously consider the Simrad units too. Defender appears to have decent prices.
Chris(Prospector), It sounds like your TP isn't calibrated, do you have the manual that explains how? If not, drop me a line & I can send you a copy of the PDF, or you can download it from their site. Once we had our calibrated, it holds a course very-very well.
Well, Franks "unit" is allot more complicated than my ST-1000, especially the initial calibration. I use mine on almost every sail. I do a fair amount of true single handing and simulated (another who only complicates things). There have been many times, when things went wrong that having the autopilot allowed me to tend to the problem. It is on all the time on my boat, and appears to use very little power. I wired it to my GPS so it can drive a triangle course if I need to duck into the cabin during a storm (motoring). It also allows me to get things put away and covered up on my way back to my slip. I would not want to be in a few of the situations I have been in alone without it. It does a fair job of tacking as well (after I adjusted the sensitivity per the manual)
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.