8 6 - 3 1 1 . ▁ ▁Category : Rec re ational ▁mathematics ▁Category : T ic - tac - to e <0x0A> </s> ▁USS ▁Rap idan ▁( A O - 1 8 ), ▁built ▁under ▁U . S . ▁Sh ipping ▁Board ▁contract , ▁was ▁laid ▁down ▁ 2 ▁February ▁ 1 9 1 9 ▁by ▁the ▁New port ▁News ▁Sh ip building ▁& ▁D ry ▁D ock ▁Co ., ▁New port ▁News , ▁Virginia ; ▁launched ▁ 2 5 ▁October ▁ 1 9 1 9 ; ▁author ized ▁for ▁transfer ▁to ▁the ▁Navy ▁ 2 9 ▁October ▁ 1 9 2 1 ; ▁and ▁commission ed ▁ 1 ▁January ▁ 1 9 2 2 , ▁Com dr . ▁M . ▁P . ▁Nash , ▁US NR F , ▁in ▁command . ▁ ▁Ass igned ▁to ▁the ▁Naval ▁Transport ▁Service , ▁Rap idan ▁remained ▁in ▁commission ▁for ▁only ▁ 6 ▁months , ▁most ▁of ▁which ▁was ▁spent ▁at ▁Nor folk . ▁Order ed ▁in activ ated ▁in ▁March , ▁Rap idan ▁de comm ission ed ▁ 2 2 ▁June ▁ 1 9 2 2 ▁and ▁was ▁ber th ed ▁with ▁the ▁James ▁River ▁Group , ▁Atlantic ▁Reserve ▁Fle et , ▁until ▁recomm ission ed ▁ 2 2 ▁January ▁ 1 9 4 0 , ▁L t . ▁Com dr . ▁J . ▁B . ▁Mall ard ▁in ▁command . ▁ ▁For ▁the ▁ 1 8 ▁months ▁following ▁her ▁second ▁commission ing , ▁Rap idan ▁carried ▁fuel ▁from ▁the ▁Texas ▁oil ▁ports