Yesterday we put the final modifications on our plane.  The only thing left is to paint the glider.  We had some difficulty finishing the plane.  We were trying to find a way to secure the light bulb to our plane using foam and rubber bands.  Before we put the light bulb on the plane, we just used a block of foam and rubber banded ot to the plane.  This idea of holding the light bulb didn't work well.  It continued to throw off the balance of the plane.  This took us back to square one.  We decided to mess around with the cockpit and see if there was a possability to house the light bulb in it.  We had to cut down into the plane and eventually got the light bulb to fit with the cockfit secured to the plane.  To make sure the cockpit didn't come off we taped it down.  Another modification we added to the plane was winglets.  These are like vertical stabalizers that are on the edge of the wings.  This helps to break up the air flow.  This was made out of an aluminum can.  On the last throw of the day, the glider dived left and broke the left wing.  The wing was barely hanging on.  We fixed it puting a piece of aluminum over the crack for strength and then taping it down.