This interactive 3D knots app teaches you how to tie the most common sailing knots. The app allows you to play, pause and stop the animation to make it easy to follow along. You can also rotate, tilt, pan and zoom to view the knots from different angles. For each knot, there's also a step-by-step description on how to tie the knot. Furthermore, in the description of each knot you find the most common usage and misusage in sailing, information on the structure and reliability of the knot and int