Nomad Willy
Guru
Fuel efficiency is part of what makes a trawler a trawler but only a small part.
Weight is probably the greatest identifying element of a trawler. They (trawlers) were called "Heavy Cruisers" before the word trawler evolved. With the extra weight slow speed was a given and the only way to better that is/was a SD or FD hull form and/or diesel power. For more stability and a small speed advantage the SD hull became much more popular and the Diesel engine standard. So a fairly heavy diesel powered cruiser evolved that needed a cuter name .... trawler came from somewhere and stuck.
Weight is probably the greatest identifying element of a trawler. They (trawlers) were called "Heavy Cruisers" before the word trawler evolved. With the extra weight slow speed was a given and the only way to better that is/was a SD or FD hull form and/or diesel power. For more stability and a small speed advantage the SD hull became much more popular and the Diesel engine standard. So a fairly heavy diesel powered cruiser evolved that needed a cuter name .... trawler came from somewhere and stuck.
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