name      length  tonnage                                   built by  year                      engines  horsepowers                              former names
0  american dynasty  272.0 feet     3471            mangone shipyard , houston , tx  1974  2 , bergen diesel , brm - 8         8000                artabaze , bure , sea bure
1  american triumph  285.0 feet     4294               ls baier &co , portland , or  1961         2 , w채rtsil채 , 8r32d         7939                                     acona
2   northern jaeger    337 feet     3732      levingston shipbuilding , orange , tx  1969                2 , mak m453c         6322  jaeger , inagua ranger ii , wisco ranger
3    northern eagle  344.1 feet     4437                       ulstein hatlo norway  1966  2 , bergen diesel , brm - 8         6590             mauna kea , hawaiian princess
4     northern hawk  310.1 feet     3732           brount marine corp , warren , ri  1981  2 , bergen diesel , brm - 8         8790                               state trust
5       ocean rover  223.0 feet     4345          mcdermott shipyards , amelia , la  1973                 3 , w채rtsil채         7080                                enterprise
6         katie ann  267.4 feet     1593  maryland shipbuilding co , baltimore , md  1969                    1 , normo         4497             royal sea , seafreeze pacific

Table as JSON:
{"name":{"0":"american dynasty","1":"american triumph","2":"northern jaeger","3":"northern eagle","4":"northern hawk","5":"ocean rover","6":"katie ann"},"length":{"0":"272.0 feet","1":"285.0 feet","2":"337 feet","3":"344.1 feet","4":"310.1 feet","5":"223.0 feet","6":"267.4 feet"},"tonnage":{"0":3471,"1":4294,"2":3732,"3":4437,"4":3732,"5":4345,"6":1593},"built by":{"0":"mangone shipyard , houston , tx","1":"ls baier &co , portland , or","2":"levingston shipbuilding , orange , tx","3":"ulstein hatlo norway","4":"brount marine corp , warren , ri","5":"mcdermott shipyards , amelia , la","6":"maryland shipbuilding co , baltimore , md"},"year":{"0":1974,"1":1961,"2":1969,"3":1966,"4":1981,"5":1973,"6":1969},"engines":{"0":"2 , bergen diesel , brm - 8","1":"2 , w채rtsil채 , 8r32d","2":"2 , mak m453c","3":"2 , bergen diesel , brm - 8","4":"2 , bergen diesel , brm - 8","5":"3 , w채rtsil채","6":"1 , normo"},"horsepowers":{"0":8000,"1":7939,"2":6322,"3":6590,"4":8790,"5":7080,"6":4497},"former names":{"0":"artabaze , bure , sea bure","1":"acona","2":"jaeger , inagua ranger ii , wisco ranger","3":"mauna kea , hawaiian princess","4":"state trust","5":"enterprise","6":"royal sea , seafreeze pacific"}}