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#11
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"Bart Senior" wrote in message .net...
5 points (Impress me with your genius) You just bought a new boat and notice the prop is old and brittle. You replace it with an identical prop. After motoring around for a while you find the top speed of the boat is much lower, estimated to be 2.5-3 knots and the prop seems to be slipping. What is the most likely cause, explaination, and cure? Put the woodruff key back on/in. Joe |
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#12
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"Horvath" wrote in message ... That's the stupidest thing I ever heard. That's not likely. I think you're making up this bull****. This is bull****. http://www.armadahull.com/proparticle.htm Amen! Bob Crantz |
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#13
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5 points to Neal.
Inboard diesel powered boats commonly have different gearing in reverse. Incorrectly installing a RH or LH pitched prop when the opposite was called for could cause a boat to run at slower than expected speeds, albeit it would move forward in the reverse position and vice versa. Neal immediately grasped that the gear ratio might be wrong and this could be explained by the boat running in reverse, and at a lower gear ratio. Capt. Neal® wrote If the shaft has a taper there is no way to put it on backwards so, perhaps, they shipped a LH prop instead of a RH prop or vice versa? Diameter and pitch could be identical but it would be so slow if turning direction were wrong. CN "Capt. Neal®" wrote Remove it, turn it around, put it back on. CN "Bart Senior" wrote in 5 points (Impress me with your genius) You just bought a new boat and notice the prop is old and brittle. You replace it with an identical prop. After motoring around for a while you find the top speed of the boat is much lower, estimated to be 2.5-3 knots and the prop seems to be slipping. What is the most likely cause, explaination, and cure? |
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#14
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#17
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Why don't you come right out and say you're an idiot, instead of giving us
the numbers. -- "j" ganz @@ www.sailnow.com "Capt. Neal®" wrote in message ... You're just upset because I'm so brilliant and you're not. Even though I am a sailor, I know more about motors and gears than the average bear. When one has an IQ, measured by several different professionally administered tests, in the 148 to 155 range, things that most people have to think long and hard about just seem to be immediately available in my brain without even giving them much thought. This is perhaps why I have so little patience with liberals. To be a liberal is to be stupid. There is no other explanation. CN "Joe" wrote in message om... (N1EE) wrote in message . com... 5 points to Neal. Inboard diesel powered boats commonly have different gearing in reverse. Incorrectly installing a RH or LH pitched prop when the opposite was called for could cause a boat to run at slower than expected speeds, albeit it would move forward in the reverse position and vice versa. Neal immediately grasped that the gear ratio might be wrong and this could be explained by the boat running in reverse, and at a lower gear ratio. And you said identical. Identical is not a diffrent rotating prop. To much rum Bart? WTF.... you usually do much better than this. Sheeeeeze Joe Capt. Neal® wrote If the shaft has a taper there is no way to put it on backwards so, perhaps, they shipped a LH prop instead of a RH prop or vice versa? Diameter and pitch could be identical but it would be so slow if turning direction were wrong. CN "Capt. Neal®" wrote Remove it, turn it around, put it back on. CN "Bart Senior" wrote in 5 points (Impress me with your genius) You just bought a new boat and notice the prop is old and brittle. You replace it with an identical prop. After motoring around for a while you find the top speed of the boat is much lower, estimated to be 2.5-3 knots and the prop seems to be slipping. What is the most likely cause, explaination, and cure? |
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#18
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Capt. Neal® wrote in message ...
You're just upset because I'm so brilliant and you're not. Even though I am a sailor, I know more about motors and gears than the average bear. I have to dis-agree. Idential is not a counter rotating prop. If he said identical pitch then perhaps. But he did not. Can you not understand a question? RH RH = identical LH LH = identical LH RH is not RH LH is not Please look the word "Identical" in the dictionary. The only one who had, the only proper answer, was me. A missing woodruff key is the only proper answer to Barts question, besides the transmission bands slipping. THATS IT. Joe When one has an IQ, measured by several different professionally administered tests, in the 148 to 155 range, things that most people have to think long and hard about just seem to be immediately available in my brain without even giving them much thought. This is perhaps why I have so little patience with liberals. To be a liberal is to be stupid. There is no other explanation. CN "Joe" wrote in message om... (N1EE) wrote in message . com... 5 points to Neal. Inboard diesel powered boats commonly have different gearing in reverse. Incorrectly installing a RH or LH pitched prop when the opposite was called for could cause a boat to run at slower than expected speeds, albeit it would move forward in the reverse position and vice versa. Neal immediately grasped that the gear ratio might be wrong and this could be explained by the boat running in reverse, and at a lower gear ratio. And you said identical. Identical is not a diffrent rotating prop. To much rum Bart? WTF.... you usually do much better than this. Sheeeeeze Joe Capt. Neal® wrote If the shaft has a taper there is no way to put it on backwards so, perhaps, they shipped a LH prop instead of a RH prop or vice versa? Diameter and pitch could be identical but it would be so slow if turning direction were wrong. CN "Capt. Neal®" wrote Remove it, turn it around, put it back on. CN "Bart Senior" wrote in 5 points (Impress me with your genius) You just bought a new boat and notice the prop is old and brittle. You replace it with an identical prop. After motoring around for a while you find the top speed of the boat is much lower, estimated to be 2.5-3 knots and the prop seems to be slipping. What is the most likely cause, explaination, and cure? |
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#19
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One has to live in the real world. Especially these
days. When somebody uses the word 'identical' a smart person realizes an identical in every way prop would behave the same as the original. Therefore one must conclude the prop was not identical provided it was not installed backwards. Backwards installation was my original answer which was made impossible with the inclusion of the information on a tapered shaft. Therefore, using logic, the only answer was 'identical' was not identical. Brilliant minds always consider real world situations and do not rely on strict definitions of words most people use very loosely. Savvy? CN "Joe" wrote in message m... Capt. Neal® wrote in message ... You're just upset because I'm so brilliant and you're not. Even though I am a sailor, I know more about motors and gears than the average bear. I have to dis-agree. Idential is not a counter rotating prop. If he said identical pitch then perhaps. But he did not. Can you not understand a question? RH RH = identical LH LH = identical LH RH is not RH LH is not Please look the word "Identical" in the dictionary. The only one who had, the only proper answer, was me. A missing woodruff key is the only proper answer to Barts question, besides the transmission bands slipping. THATS IT. Joe When one has an IQ, measured by several different professionally administered tests, in the 148 to 155 range, things that most people have to think long and hard about just seem to be immediately available in my brain without even giving them much thought. This is perhaps why I have so little patience with liberals. To be a liberal is to be stupid. There is no other explanation. CN "Joe" wrote in message om... (N1EE) wrote in message . com... 5 points to Neal. Inboard diesel powered boats commonly have different gearing in reverse. Incorrectly installing a RH or LH pitched prop when the opposite was called for could cause a boat to run at slower than expected speeds, albeit it would move forward in the reverse position and vice versa. Neal immediately grasped that the gear ratio might be wrong and this could be explained by the boat running in reverse, and at a lower gear ratio. And you said identical. Identical is not a diffrent rotating prop. To much rum Bart? WTF.... you usually do much better than this. Sheeeeeze Joe Capt. Neal® wrote If the shaft has a taper there is no way to put it on backwards so, perhaps, they shipped a LH prop instead of a RH prop or vice versa? Diameter and pitch could be identical but it would be so slow if turning direction were wrong. CN "Capt. Neal®" wrote Remove it, turn it around, put it back on. CN "Bart Senior" wrote in 5 points (Impress me with your genius) You just bought a new boat and notice the prop is old and brittle. You replace it with an identical prop. After motoring around for a while you find the top speed of the boat is much lower, estimated to be 2.5-3 knots and the prop seems to be slipping. What is the most likely cause, explaination, and cure? |
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#20
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Joe,
Have you considered that the previous owner of a boat might bave screwed up and put the wrong prop on? Then you as the new owner might make the false assumption that replacing the prop, with an indentical one, would be a solution. Bart (Joe) wrote in message . com... (N1EE) wrote in message . com... 5 points to Neal. Inboard diesel powered boats commonly have different gearing in reverse. Incorrectly installing a RH or LH pitched prop when the opposite was called for could cause a boat to run at slower than expected speeds, albeit it would move forward in the reverse position and vice versa. Neal immediately grasped that the gear ratio might be wrong and this could be explained by the boat running in reverse, and at a lower gear ratio. And you said identical. Identical is not a diffrent rotating prop. To much rum Bart? WTF.... you usually do much better than this. Sheeeeeze Joe Capt. Neal® wrote If the shaft has a taper there is no way to put it on backwards so, perhaps, they shipped a LH prop instead of a RH prop or vice versa? Diameter and pitch could be identical but it would be so slow if turning direction were wrong. CN "Capt. Neal®" wrote Remove it, turn it around, put it back on. CN "Bart Senior" wrote in 5 points (Impress me with your genius) You just bought a new boat and notice the prop is old and brittle. You replace it with an identical prop. After motoring around for a while you find the top speed of the boat is much lower, estimated to be 2.5-3 knots and the prop seems to be slipping. What is the most likely cause, explaination, and cure? |
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