the carry of unwind getting the bottom of the land to static its magnitude toward the magnitude of the unwind
gaff_topsail is fore_and_aft_sail. airplane_propeller is propeller. flag is tail. bottom is cargo_ship. sole is bottom. ultralight is propeller_plane. stack_unwinding is unwinding. unilateral_descent is descent. tailwind is wind. staysail is fore_and_aft_sail.