 A lighter alternative to the turret , particularly popular with the French navy , was the barbette . These were fixed armored towers which held a gun on a turntable . The crew was sheltered from direct fire , but vulnerable to plunging fire , for instance from shore emplacements . The barbette was lighter than the turret , needing less machinery and no roof armor — though nevertheless some barbettes were stripped of their armor plate to reduce the top @-@ weight of their ships . The barbette became widely adopted in the 1880s , and with the addition of an armored ' gun @-@ house ' , transformed into the turrets of the pre @-@ Dreadnought battleships . 
 A lighter alternative to the turret , particularly popular with the French navy , was the barbette . These <a href='uninflect' title='1'><mark>were</mark></a> fixed armored towers which held a gun on a turntable . The crew was sheltered from direct fire , but vulnerable to plunging fire , for instance from shore emplacements . The barbette was lighter than the turret , needing less machinery and no roof armor — though nevertheless some barbettes <a href='uninflect' title='2'><mark>were</mark></a> stripped of their armor plate to reduce the top @-@ weight of their ships . The barbette became widely adopted in the 1880s , and with the addition of an armored ' gun @-@ house ' , transformed into the turrets of the pre @-@ Dreadnought battleships . 
A lighter alternative to the turret , particularly popular with da French navy , was tdabarbette . These was fixed armored towers which held a gun on a turntable . The crew was sheltered from direct fire , but vulnerable to plunging fire , for instance from shore emplacements . Thdaarbette was lighter den thedarret , needing less machinery and no roof armor — doe nevertheless sum barbettes was stripped of their armor plate to reduce the da @-@ weight of their ships . The bdaette became widely adopted in the 18da , and w the addition of an armored ' gun @-@ housee ' , transformed into the turrets of the pre @-@ Dreadnought battleships .