Alternate Solution 6

Design #6 combines many of the features from previous designs.  The frame is the same shape as design #1, but this design uses the method of mast steering as design #3 and #4 by having a single motor in the center.  This model also uses power steering, which was not possible for design #1 due to the string motors being in the way.  The receiver and the batteries are placed toward the rear of the frame.  The frame itself is made from aluminum sheet metal and is 40 inches long by 30 inches wide.  The design uses 90 mm urethane wheels with ball bearing.

            This model uses the same central motor design as designs #3 and #4.  The central motor turns the entire mast rather than just the boom.  This wider range of sail motion allows sharper turning for the land sailer.  When matched with the power steering and the right sail, this design will have broader steering capabilities, and minimalized friction when using the ball bearings will also improve performance during the racing portion of testing.

            The mast has a wider range of turning with its single motor sail, and the power steering will help decrease the turning radius.  The urethane wheels are also better for speed so the model will receive better scores during the racing segment of testing.  With two wheels in the front, this is one of the more stable designs.  However, this design is less aerodynamic with most of its mass in the front.  

Figure 6.