Whakaotihia te rerenga e whai ake nei: I te tau 1974 i tangohia e te Kamupene Matson Navigation te mahi a Seatrain ki te Tai Hauauru-Hawaii, ka riihi i te "Transoneida", "Transchamplain" me te "Transontario" ki te whakahaere i te waka. I te tau 1975, ko Navieras de Puerto Rico, e mohiotia ana ko te Puerto Rico Maritime Shipping Authority, i whakahaere i nga mahi a Seatrain ki Puerto Rico, me nga kaipuke "Transhawaii", "Transidaho" me "Transoregon", i riro i a Navieras "Aguadilla", "Carolina", me "Mayaguez" (he maha nga wa e pohehe ana ki te kaipuke Ratonga Moana-whenua o te ingoa kotahi i uru ki te mahi a Seatrain i te wa o te mahi a Seatrain.
Ko te kaupapa o Mayaguez). Ko enei whakarereketanga e rua i waiho ai a Seatrain ki te aro ki ana mahi whakawhiti-a-ao me te whakawhiti-Pacific me te whakakapi i ona kaipuke kaipuke taketake, ko te nuinga o nga kaipuke kua rehitatia, me nga "Seatrain Independence", "Seatrain Bennington", "Seatrain Chesapeake", "Seatrain Oriskany", "Seatrain Saratoga", me te "Seatrain Yorktown".