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The word "tack", as it is used below, refers to the position of the boat
in relation to the direction of the wind.

Before we go any further, here are two important points to remember:

NOT sail directly into the wind - ever, whatever, what-so-ever.  If you try to, you will go "in irons" (STOP).

EXAMPLE: If the bow of your boat is 12:00 o'clock and your wind indicator is the big hand on that o'clock - you will not make headway - you will go "in irons" (stop completely).  The WINGSAILER, however, will point higher into the wind than most sailboats and you can experiment with this when you have more experience.

YOU MUST ALWAYS keep your wing set so that the wind strikes it at a positive
angle of attack in order to generate thrust.

You have to experiment by pulling in the mainsheet a little or letting it out to change the wing angle of attack in order to find what works best.  Sometimes you can let go of the mainsheet and let the wing seek its own angle of attack.  If the sail or soft part of the wing begins to flap (or luff), you have a zero angle of attack.

Tacking Your Wingsailer

To tack, you turn your WINGSAILER into the direction of the wind.  First, get up boat speed, then lean slightly into the direction of the tack.  When you've completed the tack, straighten the boat up with the rudder and lean slightly in the other direction.  In light air, pull the wing over to the right side with your hand.  But in heavy air, the wing will move automatically.  In light to moderate wind after tacking, fall off the wind at almost 90 degrees, then begin to point back Into the wind as you pick up speed.

In light or moderate air, sometimes jibing is a better way to change direction.  To jibe is to turn in the opposite direction of the wind.  As you turn away from the wind, let your wing out.  As you are turning, pull the wing in and as you complete the turn, let it out on the opposite side.

Click image for enlarged and expanded diagram of "Sailing Tacks"