|
STEERING
The two carbon fiber spade rudders have been designed
and built to take a severe grounding with 5-1/2” (140 mm)
diametre rudders posts at the lower bearings. One of the objectives
of having
twin rudders is to assure good end plate – which is formed
by the hull and ocean. This end plate effectively increases steering
capacity of the rudders. What normally happens here is that at
some point the boat heels, the top of the rudder/hull area comes
out of
the water and into the open air and the end plate is lost.
With twin
rudders, the leading edge of one rudder remains immersed through
a wider range of sailing conditions retaining the
end plate.
With two rudders the transom design allows for an increased water
line length and thus reduces pitch. This design also reduces
the issue of transom slap caused by the wake of passing vessels hitting
under the stern counter. Twin rudders also allow for space to
store
a dinghy in the transom.
The transmission steering system and
bearings have been supplied by Jefa Steering Systems in Denmark.
There are twin carbon wheels
in the cockpit. The steering in the pilothouse is hydraulic
using twin hydraulic rams supplied by Hydrive Engineering of Australia.
The three independent autopilots are commercial grade; two
are
connected directly into the transmission steering system and
the third one
is hydraulic. |
|
GROUND TACKLE
We use 110lb Delta self-launching anchor with
300’ (91.50 m) of 3/8” (10
mm) high tensile chain. The chain box has been carefully designed to be tall
and narrow shaped in order to avoid chain castles. The bow roller has been engineered
to withstand the full breaking strength of the chain. |
|
