Walter & Group...
Al Buhr comments on one of my "tips" from our last message. Some truths emerge in this string of replies. G :-
Gordy?s
tips:
?Switching from a
floating to an intermediate line makes casting in high winds easier anyway,
because the mass per diameter of the line is higher. That means that
the leading edge of your loop presents less resistance to the
wind.?
Or is
it:
The higher density line
is more efficient in transferring energy generated during the cast. One would
have a quicker cast, with or without wind, if using an intermediate line; the
smaller diameter, a consequence of higher density, perhaps is minor to greater
ability to flow energy.
When one casts a WF
line, equal in size and profile, as the density increases, the line responds
more distinctly and may give a false impression of a more heavy ?feel?
Example: Why does the
type 6 sink WF 7 ?feel? heavier than the floating
WF7?
A little farm
math:
A hammer strikes a wood
board with a thud, and then strikes a steel plate with a sharp cracking ring.
The level of tone reflects each density, and its ability to transfer energy; one
floats, the other sinks.
Could not
resist,,,
Al
Al...
Good call
!!!!
The smaller diameter will present less
air/wind resistance, this factor, however, is by far the LESS important of the two. Gets
back to the importance of mass
profile.
It does become somewhat more important,
however, as one casts directly into a wind of much greater velocity. Taken
to the absolute end, as wind velocity greatly increases, we can get to the
point where no matter the density of the line the caster simply cannot overcome
the wind.
In our real World of fly casting, however,
you are correct that the line density is the most important factor. I'm
remiss in not having pointed that
out.
Theoretically, If we were casting while
standing on the moon (no atmosphere at all), the denser line would indeed be
expected to cast more efficiently because (as you point out) there is more
efficient transfer of energy when using the denser
line.
This is also the answer to your example of
why a type 6 sink WF 7 S line will give the sensation to the caster that it is
heavier than the WF 7 F line. The first 30 feet of each line has the same
weight..... but the WF 7S is denser. (Higher specific
gravity.)
I love your "farm math" !
However, one could challenge that, too . Suppose, for example, we took
that hammer and struck the steel plate .... the cracking ring
ensues. NOW : We take that same hammer and strike a lead
plate. We are back to the thud despite the fact that the lead is denser
than the steel .
Thanks for pointing all this out to
us.
I love this stuff
!!!
Gordy
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Gordy, Yes lead can appear in a
soft state. Tungsten is greater in density, is very hard, if struck with a
hammer it will shatter.
Agreed the diameter is a factor in
cutting through wind, however mass profile (dictating the loop unroll) and
density (dictating energy transfer) may have greater importance. ?Smaller is
better? contradicts fly line shapes recommended for winding conditions; often
these profiles have large tip diameters, with a large diameter section forward
in the head/body (WF). These line shapes are about lots of mass forward to drive
a shorter cast to the windy target.
To some degree, this is the same as
a sinking line, each is a line traveling though a resistance; one air, the other
water.
Another
subject:
Terms and
Definitions:
Interesting the different replies
and opinions to simple definitions,,, after there has been discussions. This may
imply the discussed wording is not simple or visual in specific word choice. Or
possible the current word use is too focused on one perceived opinion, based on
rotation. In any scenario, all things are open to interpretation, yet debated is
primary fundamentals.
Al
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