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post #13 of Old 07-16-2008
sailboy21
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Quote:
Originally Posted by camaraderie View Post
... If you run your engine at near full throttle for 10 hours, then let it idle for 6, then wring it out again for 10, the idle time will indeed have little if any impact. ...

I wonder how this discussion applies to commercial trollers... A good number of their boats are powered by diesels you might find in some larger cruising sailboats. They idle at troll speed for oodles of time (sometimes days), and then they haul butt back in. I find myself thinking they could save themselves in fuel costs (esp being so high now) if the throttled back a bit, but maybe this is their way of cleaning the pipes so to speak. I tried doing a little trolling for salmon from my boat.. but at fast idle I was still pushing over 2.5 knots on a calm day. Couldn't bear the thought of dropping her to a low idle just to catch a little fish.
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