Another Lock Your Prop article
Moderator: Jim Walsh
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Another Lock Your Prop article
From Yachting Monthly. http://www.yachtingmonthly.com/gear/loc ... spin-29526
By the way, have you noticed that the button for starting a thread says, "New Topic." Should we petition the web masters for a "Here We Go Again" button?
By the way, have you noticed that the button for starting a thread says, "New Topic." Should we petition the web masters for a "Here We Go Again" button?
Fair winds, Neil
s/v LIQUIDITY
Cape Dory 28 #167
Boston, MA
CDSOA member #698
s/v LIQUIDITY
Cape Dory 28 #167
Boston, MA
CDSOA member #698
Re: Another Lock Your Prop article
I would think more consideration should be placed upon the transmission design. Does the transmission require pressure feed lubrication? If so is the pressure pump on the input shaft or the output shaft. If the components are just setting in a sump bath of lubricant then only external forces apply.
Actually who really cares either way.
![Smile :)](./images/smilies/icon_smile.gif)
Actually who really cares either way.
![Confused :?](./images/smilies/icon_confused.gif)
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![Smile :)](./images/smilies/icon_smile.gif)
Have A Nice Day
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Re: Another Lock Your Prop article
Considering that we've been hotly debating this for a decade or so, I suspect just about everyone!sharkbait wrote:Actually who really cares either way.![]()
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Fair winds, Neil
s/v LIQUIDITY
Cape Dory 28 #167
Boston, MA
CDSOA member #698
s/v LIQUIDITY
Cape Dory 28 #167
Boston, MA
CDSOA member #698
- tjr818
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Re: Another Lock Your Prop article
Certainly those of us who steer by tiller careshark bait wrote:...Actually who really cares either way.![]()
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![Wink :wink:](./images/smilies/icon_wink.gif)
Tim
Nonsuch 26 Ultra,
Previously, Sláinte a CD27
Nonsuch 26 Ultra,
Previously, Sláinte a CD27
Re: Another Lock Your Prop article
http://www.plaisance-pratique.com/IMG/p ... rticle.pdf
A locked propeller produces greater drag according to this scholarly treatise. The Yachting Monthly article referenced appears to have been conducted by a couple of neophytes.
That being said I lock my prop because I can hear it spinning under the right conditions.
A locked propeller produces greater drag according to this scholarly treatise. The Yachting Monthly article referenced appears to have been conducted by a couple of neophytes.
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Jim Walsh
Ex Vice Commodore
Ex Captain-Northeast Fleet
CD31 ORION
The currency of life is not money, it's time
Ex Vice Commodore
Ex Captain-Northeast Fleet
CD31 ORION
The currency of life is not money, it's time
- David Morton
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Re: Another Lock Your Prop article
Ok. Here we go. The gloves are coming off!
A direct quote from page 44 of the Yanmar YM series Op Manual:
"When sailing, set the remote control handle in NEUTRAL. Not doing so WILL introduce slippage or any damage and void your warranty."
Note caps for emphasis is from Yanmar, not me!
A direct quote from page 44 of the Yanmar YM series Op Manual:
"When sailing, set the remote control handle in NEUTRAL. Not doing so WILL introduce slippage or any damage and void your warranty."
Note caps for emphasis is from Yanmar, not me!
"If a Man speaks at Sea, where no Woman can hear,
Is he still wrong? " anonymous, Phoenician, circa 500 b.c.
Is he still wrong? " anonymous, Phoenician, circa 500 b.c.
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Re: Another Lock Your Prop article
The cure to the ailment and argument is a folding or feathering prop. Side-effects vary and include poor backing, stuck blades, difficulty in finding happy spot for pitch, nausea, cramps, bloating, difficulty swallowing...
- moctrams
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Re: Another Lock Your Prop article
And don't forget, you lose your taste for beer.
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Re: Another Lock Your Prop article
From my point of view, at slow speeds the prop doesn't spin whether it's locked or not. At hull speed, it doesn't matter. So it's the in between part that's all we need to worry about.
I don't particularly like the whine of the prop/transmission turning... and noise = wear.
Now perhaps the more important question:
Which of a locked or spinning prop will stimulate more barnacle growth?
I don't particularly like the whine of the prop/transmission turning... and noise = wear.
Now perhaps the more important question:
Which of a locked or spinning prop will stimulate more barnacle growth?
Fair winds, Neil
s/v LIQUIDITY
Cape Dory 28 #167
Boston, MA
CDSOA member #698
s/v LIQUIDITY
Cape Dory 28 #167
Boston, MA
CDSOA member #698
Re: Another Lock Your Prop article
Neil
I agree with you and will add to your observations that I have never seen a locked prop winch in a lobster pot or crab trap.
I agree with you and will add to your observations that I have never seen a locked prop winch in a lobster pot or crab trap.
Jim Davis
S/V Isa Lei
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Re: Another Lock Your Prop article
![Rolling Eyes :roll:](./images/smilies/icon_rolleyes.gif)
![Rolling Eyes :roll:](./images/smilies/icon_rolleyes.gif)
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Re: Another Lock Your Prop article
Who me???winthrop fisher wrote:NEIL see what you started
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Fair winds, Neil
s/v LIQUIDITY
Cape Dory 28 #167
Boston, MA
CDSOA member #698
s/v LIQUIDITY
Cape Dory 28 #167
Boston, MA
CDSOA member #698
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Re: Another Lock Your Prop article
so - a locked prop will be in the slip stream of the keel where the water is already turbulent and there fore will offer less resistance than if it is spinning out of the cavitating water immediately aft of the keel. I have a 2-bladed prop and try to lock it vertically so that only one of the two blades is in the undisturbed water lateral to the keel. This is when compared to when the prop spins both blades enter the smooth water to the sides of the keel. I generally stock the best beer in the engine compartment to bribe the crew to fetch the beer and while you are there, turn the prop shaft so the red mark is up (indicating that the prop is now vertical).
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Re: Another Lock Your Prop article
The only way to be sure is to not have a prop. But who would want to do something silly like that.