jim, redefine any and all words you can to "prove" (to yourself and any
doubters out there) that your spending $2,200 for a prop to make your boat go
1/10th knot faster was one hell of a smart "investment".

the word "feathering" can not be used in the context of a corkscrew prop such
as an auto-prop. except by "investers" mentioned above.

an auto-prop is an auto-prop. the blades twist a little under high power/low
speed, twist a little differently under low power/low speed, and twist
something differently under no power/any speed. the drag on the prop is still
very high indeed (as a percentage) compared to a genuine feathering prop.
auto-props are sold (by the manufacturer at least, if not always by the dealer)
as a variable speed transmission.

keep in mind that props don't drag all that much anyway. according to the MIT
data, even a fixed 3 blade only pulled 170# on a boat at 5 knots, or about the
equivelent of 2-1/2 hp.

From: Jim Richardson
Date: 9/3/2004 4:00 AM Eastern Daylight Time
Message-id:

On 03 Sep 2004 04:01:46 GMT,
JAXAshby wrote:
no, the chord does. which word don't you understand?


The "chord does" What JAXAshby ?





--
Jim Richardson http://www.eskimo.com/~warlock
"Human beings can always be counted on to assert with vigor
their God-given right to be stupid."
-- Dean Koontz

On 03 Sep 2004 11:57:24 GMT,
JAXAshby wrote:
jim, redefine any and all words you can to "prove" (to yourself and
any doubters out there) that your spending $2,200 for a prop to make
your boat go 1/10th knot faster was one hell of a smart "investment".


Why do you insist on claiming I bought an autoprop?

the word "feathering" can not be used in the context of a corkscrew
prop such as an auto-prop. except by "investers" mentioned above.


Then why did you post a definition of feathering, which fit the
autoprop?

an auto-prop is an auto-prop. the blades twist a little under high
power/low speed, twist a little differently under low power/low speed,
and twist something differently under no power/any speed. the drag on
the prop is still very high indeed (as a percentage) compared to a
genuine feathering prop. auto-props are sold (by the manufacturer at
least, if not always by the dealer) as a variable speed transmission.



Fact remains, the blades on the autoprop swivel to be inline with the
shaft, and present less drag than in the forward or reverse direction,
how is that not feathering?

keep in mind that props don't drag all that much anyway. according to
the MIT data, even a fixed 3 blade only pulled 170# on a boat at 5
knots, or about the equivelent of 2-1/2 hp.


Not relevent to the issue. It may mean that the autoprop wouldn't be
worth the cost, don't know, haven't bought one, don't plan to. Although
we will be replacing WindWalker's prop this next year, it's likely going
to be a fixed prop, simply because of cost. Some possibility of a
maxprop, but that's only if we think the cost is affordable.


--
Jim Richardson http://www.eskimo.com/~warlock
Does Emacs have the Buddha nature? Why not? It has bloody well
everything else

Why do you insist on claiming I bought an autoprop?

because no one but someone who threw $2,200 on the table for such a tiny
improvement in forward speed would write the junk you write. an auto-prop is a
variable speed transmission, not a feathering prop.

On 04 Sep 2004 13:06:10 GMT,
JAXAshby wrote:
Why do you insist on claiming I bought an autoprop?

because no one but someone who threw $2,200 on the table for such a
tiny improvement in forward speed would write the junk you write. an
auto-prop is a variable speed transmission, not a feathering prop.


the prop is a *transmission*? OK, that's funny.

But given your accuracy in other areas, I guess that kind of claim is to
be expected.

--
Jim Richardson http://www.eskimo.com/~warlock
"$HOME is where your dotfiles are"
- Gym Quirk

jim, the word transmission was used a metaphor. the auto-prop changes its
pitch to match engine power with boat speed. kinda.

Why do you insist on claiming I bought an autoprop?

because no one but someone who threw $2,200 on the table for such a
tiny improvement in forward speed would write the junk you write. an
auto-prop is a variable speed transmission, not a feathering prop.


the prop is a *transmission*? OK, that's funny.

But given your accuracy in other areas, I guess that kind of claim is to
be expected.

--
Jim Richardson http://www.eskimo.com/~warlock
"$HOME is where your dotfiles are"
- Gym Quirk

Then why did you post a definition of feathering, which fit the
autoprop?

it does not fit. not even close. and if you had not blown $2,200 on a prop
hoping against hope you could make your boat *sail* faster you would know the
difference.

Did the dealer tell you you could pass Island Packets and Westsail 32 if you
bought an auto-prop?

On 04 Sep 2004 13:08:18 GMT,
JAXAshby wrote:
Then why did you post a definition of feathering, which fit the
autoprop?

it does not fit. not even close. and if you had not blown $2,200 on a prop
hoping against hope you could make your boat *sail* faster you would know the
difference.

Did the dealer tell you you could pass Island Packets and Westsail 32 if you
bought an auto-prop?



I didn't buy one JAXAshby. I simply wanted to know what you meant by
calling it a non-feathering prop. Alas, I should have known better than
to expect rational discourse from you.

--
Jim Richardson http://www.eskimo.com/~warlock
'Windows' really does make a fine swear word, representing all that's
taboo and awful - just like '****', '****', etc."
-- Mark Hughes, sdm

jim, the term "feathering" means to twist the blades into a streamline position
with a teeny, tiny, itzy, bitsy, little, small fraction of the drag presented
by blades in operating under power position.

understand now?

From: Jim Richardson
Date: 9/4/2004 1:30 PM Eastern Daylight Time
Message-id:

On 04 Sep 2004 13:08:18 GMT,
JAXAshby wrote:
Then why did you post a definition of feathering, which fit the
autoprop?

it does not fit. not even close. and if you had not blown $2,200 on a
prop
hoping against hope you could make your boat *sail* faster you would know
the
difference.

Did the dealer tell you you could pass Island Packets and Westsail 32 if
you
bought an auto-prop?



I didn't buy one JAXAshby. I simply wanted to know what you meant by
calling it a non-feathering prop. Alas, I should have known better than
to expect rational discourse from you.

--
Jim Richardson http://www.eskimo.com/~warlock
'Windows' really does make a fine swear word, representing all that's
taboo and awful - just like '****', '****', etc."
-- Mark Hughes, sdm

On 04 Sep 2004 21:19:13 GMT,
JAXAshby wrote:
jim, the term "feathering" means to twist the blades into a streamline
position with a teeny, tiny, itzy, bitsy, little, small fraction of
the drag presented by blades in operating under power position.

understand now?



yeah, the autoprop turns it's blades, to be parallel to the axis of the
shaft, resulting in less drag than in the fwd or reverse direction,.
How is that not feathering?



--
Jim Richardson http://www.eskimo.com/~warlock
Go the extra mile. It makes your boss look like an
incompetent slacker.

I explained it three times already, jimmy. ask your homeroom teacher.

jim, the term "feathering" means to twist the blades into a streamline
position with a teeny, tiny, itzy, bitsy, little, small fraction of
the drag presented by blades in operating under power position.

understand now?



yeah, the autoprop turns it's blades, to be parallel to the axis of the
shaft, resulting in less drag than in the fwd or reverse direction,.
How is that not feathering?



--
Jim Richardson http://www.eskimo.com/~warlock
Go the extra mile. It makes your boss look like an
incompetent slacker.