great; if there is no alternative smaller sail suit available, sailing is not possible in these conditions.
Sail trim
The foresail of a yacht should always be slightly more open than the mainsail when close-hauled (mainsail
around 2° midships: foresail about 10° to 15° close-hauled) so that the airflow from the foresail is directed onto
the rear face of the mainsail, rather than being deflected into the front of it. The difference required varies
according to the wind and weather, and can be adjusted on the racing MICRO MAGIC by altering the sheet
clamps, either on the main boom or the jib boom.
If the boat does not maintain its course in a constant light wind and at a slight angle (heel) when luffing, then
the trim of the rig is not correct, i.e. the centre of pressure of the whole sail area needs to be altered. In the
case of the racing MICRO MAGIC this is achieved typically by adjusting the mast rake (inclination):
Situation / Behaviour
Windward tendency (the boat tends to turn into the
wind by itself (it luffs up).
Leeward tendency (the boat tends to turn away from
the wind by itself (it bears away).
Caution: a boat's tendency to turn into or away from the wind is also affected by the sail settings; for instance, if
the mainsail is set too tight by the kicking strap, or if the foresail is set too close-hauled or too far open.
In general terms sailing boats offer their maximum performance if they have a slight windward tendency. The
optimum setting can only be established by experimenting; please bear in mind that it also varies according to
the weather conditions.
Maiden run
Wait for a day with optimum wind conditions, and seek out a stretch of water where you can easily salvage the
model. Charge up the batteries, and check the model's working systems. Ensure that all parts are securely
attached. Now you are ready for the boat's maiden run. Be cautious at first, and take your time to get used to
the boat's sailing characteristics and handling. Don't sail the model too far from the bank initially.
All of us at GRAUPNER hope you have many hours of pleasure building and running your racing MICRO
MAGIC.
GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Keine Haftung für Druckfehler. Technische Änderungen vorbehalten! No liability for printing errors. We reserve the right to introduce
modifications. Sous réserve de modifications! Nous ne sommes pas responsables d'éventuelles erreurs d'impression!
Solution / Adjustment
The mast is raked too far back, and needs to be
tilted forward (loosen backstay, loosen mast
trimmer, tighten forestay / jib halyard).
The mast is raked too far forward, and needs to be
tilted further back.
29
#0057088
11/2006