GRAUPNER 65 User Manual page 34

turns increasingly in the direction of the wind (II) / luffing: the boat's bow turns increasingly towards
the direction of the wind (I), it ends up on a course with free wind, where the sails are paid out to
about 60° to the boat's centreline (4a / 4b). The boat only attains its maximum speed on these two
headings.
If the boat is sailing directly away from the wind (downwind), we speak of running before the wind.
On this course the sails should be paid out as far as possible (approx. 90° to the boat's centreline).
Differential pressure conditions on the sails cause the jib to turn to the opposite side to the mainsail
by itself, but this situation can also be generated deliberately by small rudder / course corrections.
If the wind is or becomes too strong, the bow of a sailing boat can very easily be pushed under the
water on this heading.
If the boat is sailing with free wind, and is then brought into a position before the wind using the
rudder (bearing away), before being steered back to a free wind heading using the rudder (appro-
ximately at right-angles to the former course with free wind), the boat is said to have performed a
gybe. Gybing is complete when the main boom, paid out a long way, swings from one side of the
boat to the other.
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