"luc" wrote in news:1142295506.893349.49870
@i39g2000cwa.googlegroups.com:

who cares what the rudder does, as long as the boat is going in the
right direction?



You'd have to watch our B&G Network Pilot steer a perfect course on
Lionheart with its rudder position sensor to see the difference. She also
has gyro input for rate-of-turn from a Raymarine Smart Heading Sensor.
Watching the wheel go through a turn at the moment of a waypoint turn is
like watching a ghost at the helm.