Our trawler 28 is a sturdy offshore trawler with a straight inboard diesel. this makes our trawler 28 an ideal boat for a couple to live aboard or for a crew of 4. The coastal passage 30 was designed to fill a niche in the small trawler market. designed in collaboration with charles neville, noted trawler designer, this trawler. Proven boat designs, and how-to information for boat building. boat plans are for beginners and have been built by thousands since 1953..