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A fixed pitch is "super-optimized" towards one specific condition. It is extremely good (efficient) under certain circumstances and next to useless at others, iow a shipowner can go to a propeller designhouse and tell them: "I have this hull form and I run my ship at this exact speed at these revs on
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A CPP on the other hand gives moderate performance on all operating conditions. It gives maximum flexibility but does not give any significant gain on any speed or load. It is half-good, half-bad all the way...
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How is it that
Controllable Pitch Propellors can be more efficient in terms of power and fuel, whilst being less efficient that fixed pitch propellors? What is the difference at "full power"?
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For a ship doing only one same thing all the time over and over you use a FPP, for a ship which operates under changing conditions you use a CPP...
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386:– Variable pitch propeller is both the more common usage and is the more inclusive usage. Please see above paragraph "Variable pitch propeller"
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Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a
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I think that the larger VPP scope should be built from and include content from the CPP subarticle, so I support the proposal. signed:
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for that content in the latter page, and it must not be deleted as long as the latter page exists.
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Subsequent comments should be made in a new section on this talk page or in a
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not all VPPs are controllable, so a wider catchment topic is preferable. --
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the engine at this load constantly for two weeks, make me a prop for this".
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in the banner shell. Please resolve this conflict if possible.
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This article has been given a rating which conflicts with the
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The following discussion is an archived discussion of a
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The above discussion is preserved as an archive of a
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360:. --
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