"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

"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

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?

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?

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?

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?

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?

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?