A boat owner has requested that we design her a lift mechanism to automatically move a
lOOO-lb,15-ft boat from a cradle on land to the water. A seawall protects the owner's
yard, and the boat cradle sits above the seawall. The tidal variation is 4 ft. Your mechanism
will be attached to land and move the boat from its stored position on the cradle to
the water and return it to the cradle. The device must be safe and easy to use and not
overly expensive.