Studding Sail Yard Sea Terms The light spar to which the head of the stun' sail is lashed before the sail is sent aloft. Masts, spars, etc. — bowsprit, jib-boom, flying jib-boom, boom, load-boom, gaffs, studding-sail boom and studding-sail yard ← Studding Sail TackAll “S” entriesStudding Sails →