If you’re getting the full 55 lbf of thrust at this speed, then your hull has 55 lbf total resistance at this speed. 55 lbf = 0.245 kN, so (0.245 kN)*(1 m/s) = 0.245 kNm/s = 0.245 kW. That’s about 1/3 hp.Click to see full answer. Also to know is, how many horsepower is a pound of thrust? Re: lbs thrust to english horsepower Power is force times velocity. One horsepower is 550 foot-pounds per second. So at 550 feet per second (375mph), each pound of thrust is one horsepower. At 825 feet per second (560mph), each pound of thrust is 1.5 horsepower.Also Know, how many lbs of thrust do I need for my boat? Boat Weight A beginning rule of thumb is that you want a minimum of 2 lbs of thrust for every 100lbs. For example, if you have a 3000lb boat, fully loaded, then the calculation is (3000/100) * 2 = 60lbs of thrust. People also ask, how fast will a 55 lb thrust trolling motor go? In fact two 55 pound thrust motors will not move you any faster than one 30 pound thrust motor. Higher thrust 12V trolling motors are designed for bigger heavier boats with larger payloads. The maximum speed of a trolling motor is 5 mph regardless of how many pounds of thrust.How many pounds of thrust does a 2.5 hp outboard motor have? 55 lbs

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