▁guns . ▁ ▁Jason ▁ 5 0 ▁– ▁ex - F rench ▁Jason , ▁captured ▁ 3 ▁May ▁ 1 7 4 7 ▁at ▁First ▁Battle ▁of ▁Cape ▁Fin ister re , ▁was ▁added ▁to ▁the ▁Royal ▁Navy ▁as ▁a ▁fifth ▁rate ▁of ▁ 4 4 ▁guns . ▁ ▁Se vern ▁– ▁ex - F rench ▁Se vern ▁ 5 0 / 5 6 ▁( origin ally ▁the ▁British ▁Se vern , ▁taken ▁by ▁the ▁French ▁in ▁ 1 7 4 6 ), ▁was ▁re - capt ured ▁ 1 4 ▁October ▁ 1 7 4 7 ▁at ▁the ▁Second ▁Battle ▁of ▁Cape ▁Fin ister re , ▁but ▁was ▁not ▁restored ▁to ▁British ▁service . ▁ ▁The ▁ex - F rench ▁Ne pt une ▁ 7 0 / 7 4 , ▁captured ▁ 1 4 ▁October ▁ 1 7 4 7 ▁at ▁Second ▁Battle ▁of ▁Cape ▁Fin ister re , ▁was ▁not ▁added ▁to ▁the ▁British ▁Navy . ▁ ▁Gl ory ▁– ▁ex - Span ish ▁G lor ioso ▁captured ▁ 1 7 4 7 , ▁was ▁not ▁added ▁to ▁the ▁British ▁Navy . ▁ ▁Other ▁ships ▁Two ▁ships ▁of ▁ 7 4 ▁guns ▁were ▁ordered ▁in ▁January ▁ 1 7 4 8 ▁from ▁Ch ath am ▁and ▁W ool wich ▁D ock y ards , ▁but ▁with ▁the ▁end ▁of ▁the ▁War ▁of ▁Aust rian ▁Su cc ession ▁both ▁were ▁cancel led ▁in ▁ 1 7 4 8 . ▁ ▁List ▁of ▁ships - of - the - line ▁of ▁the ▁Royal