Hi, Jim....
Check out my comments in your answer text in BOLD CAPS.
Gordy
From: "JFV" <jfv@xxxxxxxxxxxx>
To: "'Gordon Hill'" <hillshead@xxxxxxx>
Subject: RE: A brain teaser
Date: Wed, 16 Nov 2005 09:53:07 -0500
Hi Gordy and Group,
Sorry I am a little late on this draft got started and never finished,
but it was important enough to test myself.
The Casting Arc as it relates to changes in distance and its relationship to the stroke length.
Simply stated the longer the aerialized line, the longer the required stroke, the longer the distance? Long line ?long Stroke?.Short line .. short stroke..
As the casting stroke increases rod arc is typically automatically increased, (unless intentionally altered by the caster). More rod arc is required on longer strokes in order to provide a smooth acceleration over a SLP of the rod tip. I AGREE.
1.) Define stroke.
Stroke?the movement of the rod butt / hand applying energy to the casting system in the direction of the cast. (forward or back)
Stroke Length--The distance from the point that the rod moves in the direction of the cast to the stop. YOUR STUDENT MIGHT THEN ASK, "WHAT PART OF THE ROD ? "............. WHY NOT KEEP IT SIMPLE AND SAY THAT STROKE LENGTH IS THE LINEAR DISTANCE TRAVELED BY THE HAND DURING THE STROKE. ? (THIS FITS WELL WITH THE DEFINITION OF THE CASTING STROKE AS THE PATH TAKEN BY THE HAND DURING THE CAST.)
2.) Define Arc.
The angular measurement of the rod (typically at the butt) from one stop position to the other (e.g. backcast stop to forward cast stop) AGREE, FOR CASTS IN WHICH YOU DON'T CHANGE FROM THAT BACK CAST STOP POSITION TO, "REPOSITION" DURING A BACK CAST DRIFT. TO ELIMINATE THAT POTENTIAL CONFUSION, I'D SAY THAT THE ARC IS THE ANGULAR DIFFERENCE BETWEEN THE POSITIONS OF THE BUTT SECTION OF THE ROD AT THE BEGINNING AND THE END OF THE STROKE.
3.) Why do we vary the length of the stroke?
Longer lines require longer strokes and larger arcs to adjust for the increased rod load or bend of the rod,(tip path) more energy (acceleration) must be input into the casting system to carry the increased aerialized mass. Thus line control requires that we appropriately match the energy input to the energy required in the line control equation. (Balance) YOU ALREADY HAD THE CORRECT ANSWER IN THE FIRST PART OF YOUR STATEMENT. IT'S TO PROVIDE A STRAIGHT LINE PATH OF THE ROD TIP.
4.) Why/when do we vary the degree of arc?
As required for our specific purpose ie line control. Interesting to note that the rod angle at the backcast stop controls the fly leg of the line (on the forward cast), and the forward stop angle controls the rod leg. Makes for an interesting demonstration (and on the Masters demonstrates line control as part of the loop size explain and demonstrate) (I believe this is in J Borgers, Nature of the Cast and the reason Tom White teaches making tight and wide loops in both directions at will ) TRUE.....BUT LET'S TRY TO MAKE IT SIMPLER IN ANSWERING THIS 2 PART QUESTION:
WHY ? ANS: IN ORDER TO MAINTAIN A STRAIGHT LINE PATH OF THE ROD TIP.
WHEN ? ANS: WE VARY THE DEGREE OF ARC WHENEVER WE CHANGE THE CASTING DISTANCE.
GORDY
Jim V, MCI
From: Gordon Hill [mailto:hillshead@xxxxxxx]
Sent: Friday, November 04, 2005 9:10 PM
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Subject: FW: A brain teaser
Group...
These are good basic foundation questions posed by Tom White. Let's have as many of you as possible send in answers.
Gordy
From: "Gordon Hill"
<hillshead@xxxxxxx>
Subject: FW: A brain teaser
Date: Fri, 4 Nov 2005 20:57:37 -0500-----Original Message-----
From: Gordon Hill
Sent: Friday, November 04, 2005 7:26 AM
To: 'Tom White'
Subject: RE: A brain teaser-----Original Message-----
From: Tom White [mailto:tomw1483@xxxxxxxxxxxxx]
Sent: Thursday, October 13, 2005 5:25 PM
To: 'Gordon Hill'
Subject: A brain teaserGordie;
Here is a topic I would like introduced to your study group.
The Casting Arc as it relates to changes in distance and its relationship to the stroke length.
1.) Define stroke.
2.) Define Arc.
3.) Why do we vary the length of the stroke?
4.) Why/when do we vary the degree of arc?
This is a topic that isn?t emphasized enough. It is the key to loop shaping, loop size, rod loading, the degree of acceleration that is applied during the cast, and of course distance ? or presentation.
Thanks;
Tom White
Capt. Tom White
PO Box 500085
Marathon, Fl. 33050305-743-0055
Cell: 305-304-8540
tomwhite@xxxxxxxxxxxx www.tomwhite.com
FFF Certified Casting Instructors Workshop (CCI)November 2005FFF MASTERS Workshop November 2005
Ascension Bay Bonefish Club Salt Water Workshop, Dec. 2005