Hull length-to-beam ratio LwlBh This ratio is the measure of hull slimness at the waterline which is significant for performance.

Trimaran hull speed calculator. Bruce Number 13 Base SpeedTM 14 S Number 15 S Number and Base speed Comparison 15 Texel Rating 16 Bridgedeck Clearance for Catamarans 18 Stability 20 Stability Index 20 Stability Speed 22 Cruising Trimarans 24 Introduction to Trimaran Analysis 24 Outriggers immersed while boat is at rest or not 24 Large outriggers vs. The Maxi trimaran IDEC SPORT can reach an average speed of 2685 knots or 3071 MPH. Hull speed in knots equals 134 times the square root of the waterline length in feet HS 134 x LWL.

As a very general rule the maximum speed of any displacement hullcommonly called its hull speedis governed by a simple formula. This is the speed where the wavelength of the bow wave reaches the waterline length. As a very general rule the maximum speed of any displacement hull--commonly called its hull speed--is governed by a simple formula.

Plug 149 into the hull-speed formula 149 x LWL and you get a new nominal hull speed of 79 knots 149 x 529 788 as compared to the boats old nominal hull speed of 7 knots 134 x 529 708. Definition LB length divided by beam. What its used for Performance Larger LB indicates a slimmer hull.

SLR speed in knots divided by the square root of Waterline Length ft. Three Cylinder 20 Hp Perkins Diesel which uses very little fuel. In addition this boat has covered a distance of 26412 nautical miles or 48915 km 30394 mi.

There are 5 electric bilge pumps in Center Hull as well as one manual pump. Newicks tris appear to have the outriggers slightly. Now is the time to get out your calculator.

25 rows Hull Speed Formula. And predict this boat wont break 8 knots. 15 rows SPEED LENGTH RATIO HULL SPEED CALCULATOR.