Speed of boat
Our 2.6m Zodiac SIB (solid floor, V hull) will achieve about 15mph with two adults on board, using my 6hp Mercury 4 stroke engine.
It takes a few seconds to get going when you open the throttle but once it's "out of the hole" it accelerates rapidly to a GPS verified 14.5 mph.
A couple more HP would be nice but our engine weighs 26kg, and to get the next size up (8hp) means a jump in weight to about 37kg....and the 6hp engine is a handful to carry about/fit on the boat.
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