I have a 9.9 two stroke (kicker) on my 17.5' Sylvan which is a relatively light boat and likely much lighter than your fibreglass. I have not yet ever checked my speed vs GPS but I would suspect not much more than 5mph. Will it move your boat? Yes it would but you will likely find yourself at WOT a lot and you will be pushing water, not planing at all. Heaven forbid that you also have a headwind and 2' waves. That would be a very bad day for you I would say.
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Fish for 2013
Pike - 14
Walleye - 0
Perch - 0
Whitefish - 0
Rainbow - 0
Bull - 2
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