Windpilot PACIFIC LIGHT - Hydraulic Wheel Steering; The Pendulum Rudder; Mounting the Rudder Blade; Positioning the Rudder Blade

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1.6.9.2 HYDRAULIC WHEEL STEERING
 • Connectingthesteeringlinestotheemergency
tiller of a hydraulic steering system is pointless,
as the tiller cannot possible supply enough force
effectively to move the hydraulic cylinder. A bypass
valve will not help either.
 • Goodsteeringcanonlybehadbythisrouteifthe
transmission components of the wheel steering
system are completely disconnected from the
quadrant (emergency). A word of advice for
anybody still tempted to try connecting a servo-
pendulum system up to a hydraulically operated
main rudder: don’t do it - you’ll end up steering by
hand!
 • Hydraulicsteeringsystemsareinanycasevery
rare on smaller boats.
1.7 THE PENDULUM RUDDER
1.7.1 MOUNTING THE RUDDER BLADE
 • Thependulumrudderblade440shouldbe
mounted with the rounded edge facing forward and
the sharp edge facing aft.
1.7.2 POSITIONING THE RUDDER BLADE
 • Thependulumrudderblademustbeangled
down and aft exactly in line with the rudder shaft,
otherwise the balance will be off.
 • Adjustingtherudderbladeaftreducestheforce
generated (by reducing the balance proportion).
 • Adjustingtherudderbladeforwardincreasesthe
balance proportion excessively, with the result that
the rudder controls the windvane instead of the
other way around.
 • Both the adjustments described impair the
performance of the system and make steering
problems inevitable.
1.7.3 OVERLOAD PROTECTION
 • Mountingbolt435fortherudderblade440should
be tightened gently so that the rudder blade can still
swing up if it strikes something below the water.
 • Therudderbladeisretainedintheshaftforkby
friction only.
1.7.4 PENDULUM RUDDER LIFT-UP
 • Tieoneendoftheredlift-uplinethroughring431
and secure the other end to the pushpit.
 • Raisethependulumrudder,taketheredlineonce
around the windvane shaft 140 and rudder shaft
400 and tie it back to the pushpit.
 • Itisnotpossibletoraisethependulumrudder
out of the water while the boat is moving as the
resistance is generally too high. Lift-up under way
may be possible at speeds below two knots.
 • Thependulumruddermaybedroppedbackinto
the operating position at any time.