Join Date: Jan 2011
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Re: Outboard for Islander Bahama 28
Time to feed. fellahs!
Anything past 9.9HP would be a waste of money. You're more or less limited by your hull speed which is in the 7 knots range so you'll use say 25% of a large motors power to get to 7 knots, 50 % to get to 9 knots and 100% to get to 11 knots. (I made up the values but you get the idea) At full power, the motor mount pulls off the transom and sends $4000 of motor to the bottom. So, I'd suggest getting an 8HP +/- 4-stroke. Check the motor mount manufacturer to be sure that it can take it. Electric start is nice and a take-off from the coil, to charge your battery. But, they're more money/weight too.
For the dingy (this is where the SN sharks begin to feed! Bring it!) Use a good sized trolling motor and battery, unless you cruise extensively. There's nothing like whispering up to the dock, or past a loon, sneaking by an egret fishing, or NOT waking the neighbors while you motor home from a romantic walk in the harbor town. I buy $100 throw away motors that last 5 plus years in salt water as opposed to paying $500 for a Riptide. If you prefer a gas motor, I've seen folks with 3HP Sears & Roebuck Gamefishers that do pretty well. But still, if you have the money, a small 4 stroke around 4 HP would do well here.