Hi, Rene....
Congratulations for being one of the few to take the plunge !
Note my comments in red in your answer text.
I've included a list of references for leader/tippet study at the end.
Gordy
From: "randshesse@xxxxxxxxxxx" <randshesse@xxxxxxxxxxx>
To: hillshead@xxxxxxx
Subject: Re: "FLY CASTING MATHEMATICS"
Date: Sat, 20 May 2006 13:47:10 GMT
Hello Gordy,
It has been a few months since I have been down in Fl. and a guest at your home, thank you again for the invitation. Peter Lami has given me a lot of information and at the cci level i have been able to retain some of it, so this is a partial answer and i will watch for the other responses to correct me and fill in the blanks. I look forward to your posts everyday. Give us some more fish reports too!
1. k=1/2mv(2) not sure how to type squared (kinetic energy)
1. You can't use this formula for the simple reason that in order to calculate velocity you need to know the mass.....and I didn't provide that value for you.
The answer is: When casting with no line shoot, the velocity (speed) of the loop is 1/2 that of the fly (top) leg .
2. ?
This answer is: When shooting line, the velocity of the loop is the sum of the velocities of the fly (upper) leg and the rod (lower) leg divided by 2.
3.Rule of 4. divide the hook size by 4 to get the approx X size for the tippet
OK. We can look at this as, "the rule of 4's" or as, "the rule of 3's". This is an approximate value derived by dividing the hook size by either 3 or 4 . An example: Hook = # 12. 12 divided by 3 = 4X (or 12 divided by 4 = 3X.)
4. Rule of 11. .011= 0x, .011-.005=.006
Yes....the formula is: Subtract your X number from 11, then divide by 1000. Example: 5X tippet. 11-5=6. 6 divided by 1000 = .006 . This can be called the, "RULE OF ELEVEN'S".
5. .011-.004 = 7lb
Wrong, "rule". Here we want the so-called, "RULE OF NINES". Formula: Subtract your X tippet value from 9. This gives you a very approximate value for the pound test of your tippet. Example: 4X tippet. 9-4=5, so you have a breaking strength of roughly 5 lb. test. (This "rule" becomes less reliable as technology yields tippet material of greater tensile strength/diameter.)
6. rule of 30. # line x 30ft = approx gr wt.
Yes. Unfortunately a VERY approximate answer. Works perfectly for a 4 wt. line, then gets less accurate as we go up and down from that nodal point.
Example: 4 wt. line x 30 = 130 grains (For the 1st 30 feet of the fly line.)
7. ? I'll be looking it up but i think it has to do with the actual number of people that see the fish. the formula is something like this. p= people n=number b=beers w= weight
w= bxn divided by pxn. that is the more beer the more it weights, the more people that actually see it, the less it weighs.
Whiskey does it even better !!!!!
The so-called, "IGFA FORMULA" is :-
Length of the fish x the square of the girth at its greatest dimension divided by 800 = Wt. in Lbs.
(I've taped out and then weighed many a fish.....many species.... and have been amazed at how accurate this turns out to be ! )
8. I better look at the books Yes, indeed !
Our generically, "typical" fly leader formula is:
60 % butt section + 20 % tapered section + 20 % tippet section. (Ref. THE ORVIS FLY-FISHING GUIDE by Tom Rosenbauer, p. 35.)
(Hint.....this is a question often asked during MCI oral exams. It's usually followed up with many detailed questions on variations for different casting and fishing situations, knots and connections involved, etc, etc.)
Remember...in some older writings, the leader system may be described as the, "cast".
If you DO plan to go to the books, I'd advise starting with Gary Borger's, PRESENTATION...pp. 178-189.
And: Lefty Kreh's, FLY FISHING FOR TROUT, Vol One - Special Techniques ; Lefty's Little Library, pp. 48-64.
Also, Jason Borger's, .....NATURE OF FLY CASTING, pp. 268-270,
Joan Wulff's FLY CASTING TECHNIQUES, pp 187-192,
Lefty Kreh's, PRESENTING THE FLY, pp 44-52,
Bill Nash's, FLYCASTING SYSTEMS (the entire booklet)....available at: billsknots@xxxxxxx) ,
FLY FISHING STRATEGY by Doug Swisher and Carl Richards, pp 168-171,
TROUT; Vol. I., by Ernie Schweibert, pp. 793-836,
THE ATLANTIC SALMON by Lee Wulff, pp 51 and pp.56-60, p 109 & p 142.
FLY FISHING FOR TROUT, Vol. III, Larry Tulis, pp 153-154.
FLY FISHING SIMPLE TO SOPHISTICATED, Al Kyte, pp. 5-7, 8-12, 153-154, & other references in text related to specific fishing problems.
THE CLASSIC GUIDE TO FLY FISHING FOR TROUT, Charles Jardine, 67, 278, 186.
L.L. BEAN FLY-CASTING HANDBOOK by Macauley Lord, p.5.
9. @20%
A good caster should be able to shoot an approximate maximum of 50% of the length of the line carried.
Examples: 1.) The caster can carry 40' while false casting. He can, then, shoot 20' for a distance of 60' for the cast.
2.) This caster can carry 50' while false casting. He can shoot 25' for a total distance of 75'.
3.) He learns to shoot 10' into his final back cast. He's now carrying 60' for that one back cast....but that lets him shoot a maximum of 30' for his presentation cast which, when added to his 60' of line carried, allows him to cast a total of 90'.
All this works ONLY if the caster can handle the length (wt.) of line carried easily and without casting flaws. (One of the biggest problems I see in MCI candidates trying for distance is that so many of them attempt to carry more line than they can efficiently handle. Once they get beyond that point, the more line they try to carry the worse the cast !)
Gordy
Thanks again for the continuing education