ALADO
NAUTICA has self-contained double
halyard sheaves to allow for fast sail changes and downwind sailing
with twin genoas.
Existing
sails can be used with simple adaptation.
The halyard is led through the sheave, returned and made fast to an
eye on top of the drum.
Since
there are no hanks, high halyard tension is not required and no halyard
loads are applied to the mast.
No swivels are used. This eliminates the possibility of halyard warp,
which can produce torque, leading to forstay parting and mast collapse.