<Table> <Tr> <Td_colspan="2"> F / V Northwestern docked at the Trident shore plant in Akutan, Alaska </Td> </Tr> <Tr> <Th_colspan="2"> History </Th> </Tr> <Tr> <Th_colspan="2"> United States </Th> </Tr> <Tr> <Td> Name: </Td> <Td> Northwestern </Td> </Tr> <Tr> <Td> Owner: </Td> <Td> Sig, Norman, and Edgar Hansen </Td> </Tr> <Tr> <Td> Operator: </Td> <Td> Sig and Edgar Hansen </Td> </Tr> <Tr> <Td> Builder: </Td> <Td> Marco Shipyards, Seattle </Td> </Tr> <Tr> <Td> Yard number: </Td> <Td> 342, Seattle, Washington </Td> </Tr> <Tr> <Td> Christened: </Td> <Td> November 5, 1977, by Mrs. Snefryd Hansen </Td> </Tr> <Tr> <Td> In service: </Td> <Td> 1977 </Td> </Tr> <Tr> <Td> Homeport: </Td> <Td> Seattle, Washington </Td> </Tr> <Tr> <Td> Identification: </Td> <Td> <Ul> <Li> IMO number: 7719179 </Li> <Li> MMSI number: 367363350 </Li> <Li> Callsign: WDE5199 </Li> </Ul> </Td> </Tr> <Tr> <Td> Status: </Td> <Td> Active </Td> </Tr> <Tr> <Td> Notes: </Td> <Td> Featured in the Discovery reality television show Deadliest Catch </Td> </Tr> <Tr> <Th_colspan="2"> General characteristics </Th> </Tr> <Tr> <Td> Class and type: </Td> <Td> Fishing ship </Td> </Tr> <Tr> <Td> Tonnage: </Td> <Td> 197 gross, 134 net </Td> </Tr> <Tr> <Td> Length: </Td> <Td> 125 ft (38 m); was lengthened from 108 ft (33 m) to 118 ft (36 m) in 1987 and again to 125 ft (38 m) in 1991 </Td> </Tr> <Tr> <Td> Beam: </Td> <Td> 28.92 ft (8.81 m) </Td> </Tr> <Tr> <Td> Draft: </Td> <Td> 13 ft (4.0 m) </Td> </Tr> <Tr> <Td> Depth: </Td> <Td> 14.5 ft (4.4 m) </Td> </Tr> <Tr> <Td> Installed power: </Td> <Td> 1,280 hp (950 kW) </Td> </Tr> <Tr> <Td> Propulsion: </Td> <Td> Diesel engine (Caterpillar 3512 V - 12), single propeller . Additionally a 3304 (4CYL) Hotel Engine . Caterpillar 3306 (2) for Electric & Hydraulic Power . </Td> </Tr> <Tr> <Td> Speed: </Td> <Td> 12 kn (14 mph; 22 km / h) </Td> </Tr> <Tr> <Td> Capacity: </Td> <Td> 195 crab pots (Pre-Rationalization was 250 Pots) </Td> </Tr> <Tr> <Td> Crew: </Td> <Td> 6 </Td> </Tr> <Tr> <Td> Notes: </Td> <Td> Hull and superstructure, white; trim, dark blue </Td> </Tr> </Table> <Tr> <Td_colspan="2"> F / V Northwestern docked at the Trident shore plant in Akutan, Alaska </Td> </Tr>

What kind of engine does the northwestern have