I have a 27'' C&C approx. weight is 5500#''s. I push her along with a 1984 7.5 HP 2 cycle Sailmaster. The boat moves along nicely, even against the 4 to 6 knot out going tide. I would like more power but my engine is reliable and does the job. It pushes my boat at 4 to 5 knots at 1/2 to 3/4 throttle. Hope this helps!