ows , ▁carried ▁late en ▁rig s ▁throughout ▁the ▁late ▁nin ete enth ▁and ▁early ▁tw enti eth ▁centuries . ▁Like wise , ▁late en ▁sail ▁surv ived ▁in ▁the ▁Balt ic ▁until ▁the ▁late ▁ 1 9 th ▁century . ▁Because ▁the ▁yard ▁p iv ots ▁on ▁its ▁point ▁of ▁attachment ▁to ▁the ▁m ast , ▁the ▁entire ▁sail ▁and ▁yard ▁can ▁be ▁swift ly ▁dropped . ▁This ▁was ▁an ▁advantage ▁when ▁navig ating ▁the ▁tid al ▁river ways ▁of ▁the ▁region , ▁which ▁often ▁required ▁passage ▁under ▁brid ges . ▁The ▁bal anc elle , ▁a ▁Mediter rane an ▁coast ing ▁and ▁fish ing ▁boat ▁of ▁the ▁ 1 9 th ▁century , ▁also ▁used ▁a ▁single ▁late en ▁sail . ▁ ▁One ▁of ▁the ▁dis adv antages ▁of ▁the ▁late en ▁in ▁the ▁modern ▁form ▁described ▁below ▁is ▁the ▁fact ▁that ▁it ▁has ▁a ▁" bad ▁tack ". ▁The ▁sail ▁is ▁to ▁the ▁side ▁of ▁the ▁m ast , ▁on ▁one ▁tack ▁that ▁puts ▁the ▁m ast ▁directly ▁against ▁the ▁sail ▁on ▁the ▁le ew ard ▁side , ▁where ▁it ▁can ▁significantly ▁inter f ere ▁with ▁the ▁air flow ▁over ▁the ▁sail . ▁On ▁the ▁other ▁tack ▁the ▁sail ▁is ▁pushed ▁away ▁from ▁the ▁m ast , ▁greatly ▁reducing ▁the ▁inter ference . ▁On ▁modern ▁late ens , ▁with ▁their ▁typically ▁shall ower ▁angles , ▁this ▁tends ▁to ▁dis rupt ▁the ▁air flow ▁over ▁a ▁larger ▁area ▁of ▁the ▁sail . ▁ ▁However , ▁there ▁are ▁forms ▁of ▁the ▁late