Antal has two solutions for self-tacking using track and travelers of the new “4RACE”
The first solution (Dwg. 1) needs a “footblock” for the sheet on one side of the track; the
sheet, from this footblock, goes to the cockpit.
In this case the track will be curved only in the horizontal plane.
In the second solution (Dwg. 2 and 3) the sheet climbs up the mast then down and to
the cockpit as a halyard. In this case the track will be curved vertically and trimmed forward.
Travelers with one or two sheet blocks will be used.
Double cars are often considered because a shorter car accepts a tighter radius.
To control the traveler moving it will be useful to consider also two side stop-pins (mod.4290) and consequently the track for stop pin (mod. 4520).
Systems of drawings 1 and 2 are obtained with 2 x 110 mm travelers and 2 x 65 mm blocks
(for boats up to 50 ft), or 2 x 150 mm travelers and 2 x 75 mm blocks (for boats over 50 ft).
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