What Happens During Launch?

This picture was taken by Gary Hodson during the
mass launch at Johnson City. If you look closely, you can
see the glider is coming off the rubber band. You can
actually see the rubber band losing its tension. You can see
the effort that was exerted in launching the glider. This
was a standard (twelve inch) glider. The picture shows that
it’s a good twelve inches from his hand as it speeds by.