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echo: sailing
to: RICHARD WHEET
from: STRUTHER MACFARLANE
date: 1996-08-02 10:35:00
subject: Autohelm

Richard:
RW>You are completely correct.... the ST 2000 I believe is the tiller 
version..
RW>forgot about the ST3000 with the exposed belt versus the enclosed belt on 
th
RW>ST4000...
        Not to worry, I'm only conversant with all these numbers
        cause I've gone through so many of the damn things!
        My last boat, Kelt 7.6, had a tiller and so I bought the
        AH800, the simplest little autohelm Autohelm makes, but it
        did the job just fine.  Problem was the "drive gear" inside
        the box... while the whole unit was made very well, the most
        important driving gear of the whole thing was made of cheap
        plastic, so that under strain (which, of course, I should have
        avoided happening in the first place!) that gear broke - perhaps
        "shattered" is a better way of phrasing how it disintegrated!
        After two trips back to get it fixed, the dealer just "gave" me
        and Autohelm 1000 to replace it, same unit but with a little
        compass built in... no difference at all in the unit other than
        now it confirms my direction in accordance with the main
        compass.  That unit worked fine, mostly because by that time I
        had better learned the "limits of operation" of the unit and
        didn't allow it to be put under any strain, and it got sold with
        the boat.
        This boat, the Jeanneau 38, came with the Autohelm 3000 and, now
        that I've actually got the manual, it works like a charm!
        There's a little "rudder control" lever on the bottom of the
        control unit which determines rudder-drive unit response limits
        and it has to be set to match how many turns lock-to-lock your
        wheel makes (essentially: how respponsive is the rudder?).  It
        was set incorrectly so the unit thought, "I'll just have to make
        this much of a correction to get back on course", but the rudder
        disagreed and hence the two of them kept "arguing", which meant
        that my straight-line course ended up being a continuing series
        of large (though very graceful!) S-turns!  Kept waiting for
        the police to pull me over for drunk sailing!
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