Walter & Group...
From Mark Surtees :
Hi Gordy
On the perplexing subject of loop sizes again? sorry, I?ll be
getting a bad rep.. J.
Would we teach ?constant acceleration? to a student in order
to get a tight loop on a Roll Cast ?
I was discussing this at a show this weekend and the
consensus seemed to be that it might be desirable in ordinary overhead casting
as a means of generating an ?idea? of smoothness but it doesn?t seem to apply in
a Roll Cast where we start the casting stroke with slow translational drag and
end with rapid rotation, a distinctly non-constant acceleration, which can still
deliver a tight loop.
In both cases we would teach tip path as the main means of
controlling loop size and none of us use the word ?acceleration? when we teach,
as it tends to generate instant overpowering by the student.
Mark
Mark
Surtees
Outback Rigging
Ltd
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Mark ...
No bad raps here ! You made us THINK. That's great.
I would not teach using the term CONSTANT ACCELERATION to any but advanced students or instructors. In fact I don't like using scientific physics term at all with casting students unless they demand an explanation. This is particularly true of new casting students.
For more advanced casting students, I do think there is value in pointing out that an almost straight line path of the rod tip leading to a small loop is partly dependant upon a proper match between casting arc and rod bend. I don't think that early casters can handle that without a lot of prior instruction complete with diagrams and explanations. That may get beyond them anyway.
You bring up a good point on the roll cast.
I have the distinct impression that in order to gain a small loop for my roll cast that I need to exert a shorter burst of power than when making the same distance cast when overhead false casting in order to gain sufficient rod load.
Is that just a false impression ? Am I really just compressing a constantly accelerated move into a shorter interval of time ?
Frankly, I don't know.
Jason Borger has studied this and published a figure with a chart showing change in the angular velocity of the rod butt during the forward portion of a roll cast. He compared it with one formed when the caster made a standard forward overhead cast. There is a much steeper curve shown for the roll cast. *
Bruce Richards has shown that most casters he's studied are more likely to form a small loop when they use translation to delay rotation. I'm not sure why. Could this be due to a lessened likelihood of deviation from an almost straight line path as they have a shorter casting arc yet still matched to the application of power and, therefore, the rod bend ?
* Jason Borger's NATURE OF FLY CASTING, a modular approach, By Jason Borger, 2001, ISBN 0-9711570-0-6, pp. 155, 156, Figure 9-3b.
Gordy
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CONSERVATION
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Chuck Easterling responds to our attachment on conservation and bonefish history from our last message :
Hi Gordy,
Thank you very much and it really gives insight as to what
has happened and is happening.
Although my experience with bonefish is
unfortunately quite limited I look upon them as the
" canary in the coal
mine." Like wild trout, steelhead and in my area quail the decrease of these
wonderful species tells us a great deal about what we are doing to the
environment---and in the end to ourselves.
In a way wild trout,
steelhead, bonefish and quail are like music and great literature---without them
life becomes much poorer.
Chuck
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Chuck ... Well stated ! G.
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From Bob Tabbert :
Hi Gordy, thank you for the wonderful conservation article on the decline of bone fish populations based on your own observaions.
With your permission I would like to pass this bone fish
conservation/information article along to the 14 VPs of Conservation
covering the 14 FFF Councils. Thank you for sharing this with us.
The beach net with the catch of fish being harvested and used for fertilizer is similar to the early days up on the Brule River in Wisconsin that drains into Lake Superior. During the "coaster' brook trout spawning run in the fall, the farmers would drive their flat bedded wagons along the river and with pitch forks clean out the redds and use the 'coasters' for fertilizer. Even today the ruffed grouse hunters in the fall have a nasty habit/secret or custom of hunting along the spring creeks looking for brook trout redds and as one hunter told me,making a skillet shot and harvesting 8 to 10 brook trout. Thanks again for sharing your observations.
Bob
Robert L. Tabbert
Conservation, Fly Fishing,
Exploration
Winter: 211 Ursuline St, Lafayette, LA 70506
Summer:
N14925,W Turner Lk Rd
Lac du Flambeau, WI 54538
cell# 337 781
3650
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Bob .... Share as you see fit. We need greater exposure of these issues.
Gordy
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Gordy