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Old 07-25-2012, 02:35 PM   #1
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City: Madisonville
Country: USA
Vessel Name: Nirvana
Vessel Model: 41' Litton
Join Date: Feb 2011
Posts: 106
Thruster = Speed loss?

Advice needed. I want to install a bow thruster on my 41ft, single engine. Now I'm only getting 6.5K @ 1800 and 7K max. at full speed (2000-2200). How much will a bow thruster hole reduce my already snail speed?

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Old 07-25-2012, 07:10 PM   #2
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City: Auckland
Country: New Zealand
Vessel Name: Pioneer
Vessel Model: Westcoaster 53 converted to pleasure
Join Date: Nov 2007
Posts: 282
Every boat is different but correctly faired, the addition of a bow-thruster should not much make much difference. Certainly I couldn't detect any when we put one in. Your cruising speed shouldn't change, the engine governor may open a up a fraction and you might burn a tiny little bit more fuel to maintain that speed; and it's conceivable that your top speed might come off a fraction since the governor is wide open anyway.
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