Inventor or designer of the A F T M line system

flyfishy61 · #1 (**permalink**) 12-01-2011, 09:33 PM

hello while conversing with forum member MAX from Italy it would be interesting to learn who invented or designed the A F T M line sizes . i presume would have been d/t in 3 wt to ?? and think of silk. how did this form the diameter sizes we know today. must have been around the mid to late 1800s. can anyone help with this!!! and to be honest i would be interested to learn or perhaps old friend google might help.flyfishy61

wobbly face · #2 (**permalink**) 12-01-2011, 09:54 PM

Can't help with the inventor but it came from America and now accepted as international standard. There is an other, I think IGFA but not to sure, grey matter not too good these days.

ticklematackle · #3 (**permalink**) 12-01-2011, 10:01 PM

The "A"merican "F"ederation of "T"ackle "M"anufacturers invented the system.

Ephemerella · #4 (**permalink**) 12-01-2011, 10:06 PM

Yes: AFTMA

Standard Line Weights

Grain weights are for the first 30' of the line.

AFTMA (the former American Fishing Tackle Manufacturers Association- now the ASA- American Sportfishing Association) Fly Line Standards were developed to help fly fishing tackle manufacturers create a system that would match fly line weight to fly rod performance. Cortland Line Company’s Leon Chandler was instrumental in initiating and completing the project. In theory this would standardize fly tackle manufacturing across the industry and enable fly fishers to select and balance their equipment for optimum performance.

ickypimp · #5 (**permalink**) 12-01-2011, 11:50 PM

As Ephemerella correctly states the AFTM system relates to the weight of line in grains of the first 30 feet of line, it is nothing to do with diameter...

a 7 weight leadcore will weigh the same ass a 7 weight floater in the first 30 ft of its length but the diameters will differ (thus giving differing densities)

3lbgrayling · #6 (**permalink**) 12-01-2011, 11:57 PM

Quote:

Originally Posted by ticklematackle

The "A"merican "F"ederation of "T"ackle "M"anufacturers invented the system.

Beat me to it.

Jim

---------- Post added at 12:57 AM ---------- Previous post was at 12:55 AM ----------

Quote:

Originally Posted by flyfishy61

. can anyone help with this!!! and to be honest i would be interested to learn or perhaps old friend google might help.flyfishy61

Jim

fredaevans · #7 (**permalink**) 13-01-2011, 01:49 AM

There's also one out covering 2-hander fly lines, but it's one 'complex' ("Say What?") bit of doodling. Won't go into details, but it has much to do with the actual length of the head section of the line.

JohnH · #8 (**permalink**) 13-01-2011, 07:19 AM

Quote:

a 7 weight leadcore will weigh the same as a 7 weight floater in the first 30 ft of its length but the diameters will differ (thus giving differing densities)

In the past it's made me smile, when seeking to explain how fly lines and fly casting work, and have asked "what weighs more, a pound of balsa wood or a pound of house brick ?". A surprising number of folks have replied "A pound of house brick". DOH

flyfishy61 · #9 (**permalink**) 13-01-2011, 08:09 AM

Quote:

Originally Posted by Ephemerella

Yes: AFTMA

Standard Line Weights

Grain weights are for the first 30' of the line.

AFTMA (the former American Fishing Tackle Manufacturers Association- now the ASA- American Sportfishing Association) Fly Line Standards were developed to help fly fishing tackle manufacturers create a system that would match fly line weight to fly rod performance. Cortland Line Company’s Leon Chandler was instrumental in initiating and completing the project. In theory this would standardize fly tackle manufacturing across the industry and enable fly fishers to select and balance their equipment for optimum performance.

hello thankyou to reply i shall try and see if can get more info from cortland usa. maybe there is a book written about this. regards flyfishy

flyfishy61 · #10 (**permalink**) 13-01-2011, 09:24 AM

Quote:

Originally Posted by Ephemerella

Yes: AFTMA

Standard Line Weights

Grain weights are for the first 30' of the line.

AFTMA (the former American Fishing Tackle Manufacturers Association- now the ASA- American Sportfishing Association) Fly Line Standards were developed to help fly fishing tackle manufacturers create a system that would match fly line weight to fly rod performance. Cortland Line Company’s Leon Chandler was instrumental in initiating and completing the project. In theory this would standardize fly tackle manufacturing across the industry and enable fly fishers to select and balance their equipment for optimum performance.

thankyou i hope to contact corland for more info

---------- Post added at 10:24 AM ---------- Previous post was at 10:24 AM ----------

Quote:

Originally Posted by flyfishy61

thankyou i hope to contact corland for more info

sorry cortland

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