Moderated Discussion Areas
ContinuousWave: Whaler Performance
Adjustable pitch propellers
|Author||Topic: Adjustable pitch propellers|
posted 06-12-2003 01:19 PM ET (US)
I have seen these at West Marine. Has anyone used them? Also the replacable blade kind too. It would be awsome to have adjustable pitch while you are running but I know this is not what they sell @ West Marine. I heard about a kind that you could adjust while you are running but does anyone know about these.
posted 06-12-2003 02:56 PM ET (US)
Junk and in the long run more expensive because the blades break so easily. They also flex like hell so not very efficient.
posted 06-13-2003 11:50 AM ET (US)
Land and Sea used to make a shiftable prop. It was not junk, not even close. All parts were steel, no flex. It did take some effort to set up with the proper shift cams and springs for a particular boat. They were expensive, around $700. Mercury also had a dual pitch shiftable prop out for a while. Whereas the Land-Sea prop shifted like a continuously variable transmission, the Merc Prop shifted like an old two speed hydra-glyde auto trans. Motor trim and load effected the shift points. BillS
posted 06-13-2003 01:06 PM ET (US)
Bill he was not asking about those, he was asking about the composite props that you replace the blades and therefore can change pitch. the Land&Sea are still made but i hear sand and dirt etc screw them up.
posted 06-15-2003 10:57 PM ET (US)
I was asking about both the composite and the "adjustable while you are are running" props. Like in an airplane.
posted 06-16-2003 10:55 AM ET (US)
Oh....well you got your answers I guess.
posted 06-16-2003 01:01 PM ET (US)
Like LED navigation lights, they seem to be slow in development, and high priced initially. However, at some point, I expect that the 4-stroke power plants that have slow hole-shot will be cured of this ailment by a shifting prop.
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