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  • Jeff Wagner on elliptical casts / LOOP




     

    Walter & Group................

     

    From Jeff Wagner:

    Great comments!  I find myself thinking more like Mac with every
    post!

    I don't remember all of the uses (of the continuous
    tension/belgian/elliptical)
    mentioned so far, but will give my main uses.

    Fishing nymph rigs, double streamer rigs, and really any double
    fly rig.  To
    keep them separated while casting it often makes it easier to
    use an
    elliptical
    cast.  It is also easier on the connecting knots than a instant
    change of
    direction.

    To take this another step with clients using a short line this
    cast becomes
    essential as any over head casting almost certainly ends up in
    disaster.  I
    will offer this cast and variations (as Mac mentioned) above
    horizontal to
    ticking the waters surface.  Line management is easier, there is
    no wrist-dump
    behind the caster and they have an easier and longer time
    visualizing the line
    as it moves to the side instead of overhead.

    What, too much emphasis on distance!!! lol  I would have to
    (hesitantly) agree
    (as I prepare for distance demos at the upcoming ISE shows!).
    It is important
    to pursue mastery of the many facets of casting!


    --
    Jeff Wagner
    Master Certified Fly Casting Instructor

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    To all MCCI Candidates:

    I strongly recommend you access and study the article by Jim Valle on preparing for the MCCI exam in the last issue of the LOOP.

    Go to : http://www.fedflyfishers.org/loop.php  to find it.

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    From Steve Hollensed:-

    Hi Gordy,

    I would like to add my 2 cents on WHY constant acceleration is

    important. I believe it relates to one of our casting essentials, that

    of a SLP of the rod tip.

    Really, there is only one thing that will load or bend the rod in the

    end, and that is a net force. Forces are produced by accelerating a

    mass, in this case the fly line. (F=ma)

    If we apply constant forces, then the rod will be bent in the same

    amount through out the casting stroke ( the portion of the stroke under

    load). This is achieved via constant acceleration. Varying the amounts

    of acceleration will produce varying amounts of force which will in turn

    cause the rod to load and unload during the stroke creating departure of

    SLP.

    In my estimation, this is why it is good to load the rod with smooth,

    constant acceleration.

    It is also important here to understand very well the difference between

    velocity and acceleration. High velocities are required at the end of

    the stroke just to maintain constant acceleration, thus constant forces.

    As Troy point out so eloquently, if you reduce the velocity, you reduce

    the force acting on the tip by reducing the acceleration and the rod

    begins to unload resulting in loop formation.

    I think this is seen in the Analyzer graphs. The good casts have a semi

    straight line in the casting stroke on the tip speed versus time curves.

    This indicates constant rate of change in the tip speed, or constant

    acceleration.

    This is also seen with beginners not loading the rod. Constant speed

    does not produce a force to load the rod. No change in speed - no force

    - no rod loading.

    Just some thoughts, that I hope relate cause and effect.

    Steve

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Steve...

    Makes good sense, to me.

    Gordy

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    From Troy Miller:

    In response to the Belgian cast issue (and again I want to say, I don’t know if I’m doing a “proper” Belgian cast), I’m nearly certain that my rod tip NEVER stops motion at any time during the strokes – up to final presentation delivery.  The low slung backcast transitions pretty smoothly as I’m changing planes and then I “power on” going forward when the time is right.  Done this way, there are ALWAYS accelerations.  Some are positive, some are negative, but there’s no significant period where I’m at zero velocity or acceleration.  That’s how I maintain continuous tension between the rod tip and the flyline.

     

    Wish I had a flyrod up here to check it out more thoroughly.  Anyone know how a flyline behaves at -40 degF?  Bruce?  J

     

    Regards -- TAM

    ------------------------------------------------------------------------------------------------------------------------------------------------------------

    Troy....

    That is what I meant when I said that I could do the, "Belgian cast" (or a variation of it) with no defined stop.  I don't know that there is  a correct way of doing it, ie. with a stop, then change of rod planes or with continuous tension and no true stop.

    Gordy