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Michael Ohlhorst
 
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Default Jet Boat Autopilot

Hi Larry,


I recall from years ago that handling large craft was very much the same
thing: you applied rudder and the reaction was delayed. Stopping was
similar - you approached slowly and with caution and reversed engines well
before you wanted to stop. All of this is what I generically call
"damping" - anticipation of the effect and a delayed reaction to change.
Now my experience with autopilots is practically nil - the only time I

used
one was very brief and basically it just kept the boat on course. I had
hoped that when you set up an autopilot, that you could trim the amount of
steerage. Are you saying that you can't?

As i am going most often alone with my Boat i have to use the autopilot for
a lot
of times when i am busy.
The worst situation was a trip at the german north sea between Cuxhafen at
the Elbe and
Helgoland the distance is around 70 miles open water. The weather has turned
from bad to
impossible and as my flybridge was not ready to use i had to steer form
inside. The lithouse of
Helgoland was in sight but i was not able to steer a usefull course. The
waves are so strong that
my dutch 52feet Motorboot was doing 90 degree course changes within 5
seconds. The only way for me was
using my robertson AP3000 sitting on the sofa and hoping the best -which
lasts 5 hours as the boat is doing around
8 knots in good conditions.

The trimming of an autopilot is the most horrible thing to do. When it is
funktioning in calm conditions it is not working
in rough sea and when its working there your boat is moving like a drunken
sailor at a mirror sea.

Michael