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. Here’s a handy boat that can be rowed, sailed, and powered with up to three large adults, and it "nests" to take up less space. the passagemaker dinghy is easy to. These people have built their own boats using plans from phil bolger, jim michalak or other designers. they’d probably be ecstatic to talk about their boat(s) with you..