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#1
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![]() I don't know what a VP/CP prop is. Variable pitch/controlable pitch. I use the terms interchangeably, but as you'll see, others use them slightly differently. When our engine is running the shaft is spinning because we have a Borg-Warner transmission. Our shaft spins whenever the engine is on regardless whether it is neutral or not. The prop feathers when the engine is turned off and the shaft stops spinning. The stopping of the shaft spinning feathers the prop if I understand it correctly. You really wouldn't want the prop feathered if the engine was on - if it feathered when you went through neutral when docking or something it would be very awkward. Interesting, thanks for the info. I would wonder if once you were underway and using your prop, even going from ahead to astern (unless you had a shaft brake) that the shaft would generally continue to rotate on it's own, keeping the prop "unfeathered", though I can see where the manufacturer might want to guarantee it would stay that way (just clarifying in my own mind G). Shen |
#3
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Jere Lull wrote:
In article , (MLapla4120) wrote: I'm going to re-power soon and am also going to get new shaft and prop. It seems that in my boat class (Westsail 32), some people are going to folding props to help speed under sail. I'm for increased speed, but also want reliability. My current bronze propeller is pitted and old. Every time I turn around and look at it, it is full of sea growth. That makes me think I'm getting poor performance. So, I'm for an improvement, but I am unsure of what kind. Any opinions from boaters that have encountered this situation would be appreciated. Thanks, Mark , "Belle" Westsail 32 ANY modern prop will improve your performance under power, forward and reverse. Technology has improved in 30 years. A feathering prop can drastically improve sailing enjoyment if you don't bother to park your prop behind the keel. Your Westsail may not get the improvements we get as we're lighter and cleaner, but we pick up .5 to .8 knots when I remember to stop the prop, which has us sailing more than we used to. Windward performance improved, allowing us to get a bit closer to the wind. We also get more comfortable sailing past hull speed, but the "wetsnail" doesn't have a hullform that allows much of that. We don't have a Westsail of course, but with enough wind, we've gone faster than hull speed a couple of times. What do you mean by getting more comfortable? grandma Rosalie |
#4
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