Detail: https://bit.ly/2EvDEmW A patrol boat is a relatively small naval vessel generally designed for coastal defense duties. There have been many designs for patrol boats. They may be operated by a nation's navy, coast guard, police force or customs and may be intended for marine (blue water) and/or estuarine or river ("brown water") environments.Over the next five years, our projects that Patrol Boats will register a 7.4% CAGR in terms of revenue, reach US$ 280 million by 2023, from US$ 180 million in 2017.