DWF longline fishing vessel Overall length: 37.80 m Beam: 6.40 m Depth: 3.50 m Main engine power: 540 kW Daily maintenance is performed daily; monthly maintenance is carried out once a month, lasting one day each time; semi‑annual overhauls are conducted after the main engine has operated for 500–600 hours or every six months, with each overhaul lasting 3–5 days; annual overhauls are performed after the main engine has accumulated 1,000–1,500 operating hours or once a year, with each overhaul lasting 3–7 days.

Distant-water trawler Overall length: 50.00 m Beam: 8.00 m Depth: 3.90 m Main engine power: 960 kW Daily maintenance is performed daily; monthly maintenance is carried out once a month, lasting one day each time; semi-annual overhauls are conducted after the main engine has operated for 500–600 hours or every six months, with each overhaul lasting 3–5 days; annual overhauls are performed after the main engine has accumulated 1,000–1,500 operating hours or once a year, with each overhaul lasting 3–7 days.

Total length 65.3 trawler

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