Re: Fly Casting, "Math"

Paul....

The fish weighed 133 lbs.  I couldn't weigh him on the skiff so I used the so-called, "IGFA" formula to calculate it:

Total length of the fish X Girth (at the max. circumference) squared divided by 800 = Wt. in Lbs.

Now....on the conversion of X tippet size to inches, we simply subtract the arbitrary X number from in integer, 11 then divide by 1000.   Example: 4X tippet = 11- 4 divided by 1000 = .007 inches. diameter.

To convert to millimeters, a simple formula is:

((11-X) divided by 1000) x 25.4 = mm. diameter.  Example:

4X tipppet dia = (11- 4 divided by 1000) x 25.4 = .1778 mm.

(Rounded off) = .18 mm.

 

Formula derivation:  There are 2.54 cm to one inch.  So if we gain the inch diameter we simply multiply that by 2.54, then multiply times 10, since there are 10 mm in each cm. 

Frankly, I've always thought the metric system made a lot more sense since it is to the base 10 using the same math logic as our number system.....but custom dictates otherwise in many parts of the world including the UK and the U.S.A.

We could well begin and end with the metric mm measurement and eliminate all the rest.

                                                           Gordy

 

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From: "Paul Arden" <paul@xxxxxxxxxxxxxxx>
Reply-To: "Paul Arden" <paul@xxxxxxxxxxxxxxx>
To: "Gordon Hill" <hillshead@xxxxxxx>
Subject: Re: Fly Casting, "Math"
Date: Thu, 25 May 2006 07:41:18 +0100

Hi Gordy,

Congratulations on the poon! - 133 what? inches? or pounds?

Up in Nova Scotia at the moment, catching small Brookies - lots of fun.

It's strange on the Continent they all talk in terms of tippet diameter

in mm (which I haven't a clue), in NZ and UK they talk in terms of lbs

(and I guess most people now mean copolymer) and quantify it

with brandname. In US "X".

Of course the Continental Europeans have it right but it's like trying

to talk in terms of Km when you're used to hours drive.

What I don't understand about the X system is, is there a formula

for the diameter or 2X, 3X etc - ie who decides how many mm

is 2X? Are all 2X material the same diameter for example?

Cheers,

Paul

 

----- Original Message -----

From: Gordon Hill

To: paul@xxxxxxxxxxxxxxx

Sent: Wednesday, May 24, 2006 12:53 AM

Subject: Re: Fly Casting, "Math"

Paul...

I've read that the, "x"system was started for die's through silk worm gut was drawn....I can't remember whether this was begun in China or Japan.  I've always thought it a bit wierd......but in use long before I was born (1930).

Poons are starting....no big push, yet.  I landed the second largest one for my life......taped out at 133 #.

Found only one school, today.....no strikes.

                                                                  Gordy

 

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From: "Paul Arden" <paul@xxxxxxxxxxxxxxx>
Reply-To: "Paul Arden" <paul@xxxxxxxxxxxxxxx>
To: "Gordon Hill" <hillshead@xxxxxxx>
Subject: Re: Fly Casting, "Math"
Date: Tue, 23 May 2006 08:03:53 +0100

Hi Gordy,

no one outside the US understands the X system and as far as

I can work out no one inside the US does either.

I think I may have failed your maths test.

Hope you are well and the 'poons are jumping!

Cheers,

Paul