Mainship 34T Model I Trawler 1982 yacht for sale by Janda Yacht Sales Ltd. www.jandayachts.com 705-456-5000. Copyright video by Jim Gillies July 12, 2011 Penetanguishene on Georgian Bay, Ontario. Vessel cruises at 8 knots using approximately 2 U.S. gallons per hour. With a 220 gal. capacity you have a range of about 900 nautical miles. She has a 165 hp Perkins turbo-charged diesel and a stern thruster, generator and automatic inverter. This is a great boat for the Great Loop and extended cruising including the North Channel, Florida and the Bahamas. A short video featuring this vessel was posted last week.