Walter & Group...
From the many answers recieved, I picked the ones from Mark Milkovich and placed them in the attachment.
Note the references to Andrew Herd's book, THE FLY and Ernie Schwiebert's two volumes, TROUT. There is an amazing trove of information in each, not only on the history and development of fly lines, but on the early beginnings of fly fishing and its later advancement almost to its present state.
We must realize that no textbook can be completely up to date. By the time it hits the market, advances will have taken place. Elie Beerten has correctly pointed out that Andrew Herd's, THE FLY places information as it developed along an historical time line.
Gordy
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Look over the answers below. Then compare them with those by Mark Milkovich in the attachment. Also, take note of the way all of these members answered the questions. Right, wrong or boarderline, all the questions were answered with crisp SHORT ANSWERS as though they were actually taking a Master Oral exam. Some of the answers were convoluted, sometimes tangent to the question, and a few were so wordy that it wasn't easy to pick the wheat from the chaff. A very few were correct answers to a different question ! I purposely didn't share those.
Reading the words of others, helps solidify the information in our brains.
Gordy
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Good score from Doug Swift :
QUIZ : These questions get more difficult as we go from 1.) to 26.) Do the best you can. I will be amazed if anyone gets them all right !
1.) Briefly describe the CORE of a fly line. The material over which the fly line coating is built.
2.) List as many core materials used in the manufacture of fly lines as you can. Braided multifilament nylon---Braided monofilament nylon---single strand monofilament---braided multifilament dacron---kevlar
3.) What core is most commonly used lines designed for trout fishing ? Braided multifilament nylon
4.) Grade the main properties of this core using with respect to:
a. Stretch .......... (High or Low) High
b. Flexibility.........(Great or Limited) Great
c. Tensile strength.... (Adequate or Great) Adequate
d. Bond to coating .....( Good or Poor) Good
5.) What core is most often used for lines designed for use in salt water ? Braided monofilament nylon
6.) Grade this core as you did in question 4.)
Low stretch---Great flexibility (becomes stiffer when bonded to the coating)---adequate tensile strength---good bond to coating
7.) Can you think of another core material used for both fresh and saltwater lines ? Single strand monofilament
8.) Is Dacron a popular core material for fly lines ? No
9.) What core material is usually used for fly lines which are clear or transluscent ? Single strand monofilament
10.) For distance tournament casting, are cores used which are stretchy or of limited stretchability ? Limited stretchability
11.) Is the stiffness of a fly line dependant strictly upon that of its core... or does the coating also contribute to this property ? The coating does contribute to the stiffness of the line
12.) What core material is usually used for lines designed for fishing in cold salt water. Braided multifilament nylon
13.) Years ago, a line was designed and marketed with a core made of Kevlar. There were problems with it. The bond between the coating and the core was poor and the Kevlar core would fracture after lots of casting at which point the line would literally come apart in mid air. Can you name this line ? I believe it was made by Airflo
14.) What is meant by the term, "INCH WORMING". Inserting a fly line into a braided loop by manipulating the hollow braided loop material over the line by alternately pushing the line in and then the braid over it.
See Mark's answer and my comments in the attachment. G.
15.) Fly line designers have had difficulty with fly lines made with gel-spun cores. Can you tell us what those problems were ? Poor coating to core adhesion--Poor stretching qualities--coating deteriorating at leader butt/line tip connection.
16.) Some expert dry fly trout fisherman have taught that the attachment between the fly line and the butt section of the leader should seal the end of the line so that the core isn't exposed. Why ?To prevent leader butt to fly line tip connection from absorbing water and sinking
Correct. Very few got that one right ! G.
17.) Name the CORE material used in this line : AIRFLO Tropical Saltwater Ridge Line, Polyfuse XT. Believe it is called "Power Core". Not sure what the braided material is (Dacron?)
Check my comments in the attachment. G.
18.) Several years ago, lines entered the market which were called, "SLIME LINES". What was used for the core material of these lines ? Single strand monofilament
19) Can you name one annoying problem common to these lines ? (Hint: It was so bad that the manufacturer offered to replace any line so affected.) Susceptible to heat damage
See my comments in the attachment. G.
20.) Back in the late 30's, I had a silk line labelled, "GBG".
a. What material was used for the core ? None
b. What was meant by the label, "GBG" ? Double taper 7 wt.
21.) What material do fly line manufacturers add to the core of sinking lines to make them sink faster ? Tungsten
Check attachment. G.
22.) What is the approximate tensile strength of the core of the average line designed for trout fishing ? 20 Lbs
23.) New lines designed for big game salt water fishing have cores with what approximate tensile strength ? 40 lbs
24.) Flip Pallot, Lefty Kreh, Tony Heeb and Chico Fernandez used to make their own fly lines for salt water fly fishing back in the late 50's because they found the marketed lines available were not satisfactory. Flip wrote about it. What was the core material ? Not sure - I,ll guess at furled single strand monofilament
Check attachment. G.
25.) (We'll throw in a "gimme") What can we read to find much of this information on fly line cores ? Bruce Richards "Modern fly lines"
26.) (Toughest question of all !) Where can we find a copy ? Right beside me at my computer desk!!!
Hold on to it !!! G.
Have fun with these !
Gordy
Thanks
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Answers from Tony Loader . Another very good score (My brief comments in his text.) G.:
QUIZ : These questions get more difficult as we go from 1.) to 26.) Do the best you can. I will be amazed if anyone gets them all right !
1.)
Briefly describe the
CORE of a fly line.
The central element which gives the line
its tensile strength.
2.) List as many core materials used in the
manufacture of fly lines as you can.
A)
Braided multifilament
nylon
B)
Braided monofilament
nylon
C)
Braided multifilament
polyester
D)
Single Strand
monofilament nylon
E)
Braided aramid fibre
(Kevlar)
3.) What core is most commonly used lines designed
for trout fishing ?
Braided multifilament
nylon
4.) Grade the main properties of this core using with respect to:
a. Stretch .......... (High or Low) High
b. Flexibility.........(Great or Limited) Great
c. Tensile strength.... (Adequate or Great) Adequate
d. Bond to coating .....( Good or Poor) Good
5.)
What core is most often
used for lines designed for use in salt water ?
Braided
monofilament nylon
6.)
Grade this core as you
did in question 4.)
a)
High
stretch
b)
Limited
flexibility
c)
Adequate tensile strength
d) Good bond to coating
7.)
Can you think of
another core material used for both fresh and saltwater lines
?
Single strand
monofilament nylon
8.) Is Dacron a popular core material for fly lines ? No
8.)
What core material is
usually used for fly lines which are clear or transluscent
?
Single strand
monofilament nylon
9.)
For distance tournament
casting, are cores used which are stretchy or of limited stretchability
?
Limited
stretchability
10.)Is the
stiffness of a fly line dependant strictly upon that of its core... or does the
coating also contribute to this property ?
The coating
contributes
11.)What
core material is usually used for lines designed for fishing in
cold
salt
water.
Braided
multifilament nylon
13.) Years ago, a line was designed and
marketed with a core made of Kevlar. There were problems with it.
The bond between the coating and the core was poor and the Kevlar core would
fracture after lots of casting at which point the line would literally come
apart in mid air. Can you name this line ? No
14.) What is meant by the term, "INCH WORMING".
Check the
attachment. G.
A method of working a core material up the
hollow centre of a braid by digital manipulation.
15.) Fly line designers have had difficulty
with fly lines made with gel-spun cores. Can you tell us what those
problems were ?
Intractable memory, poor coating adherence thus not very durable and incompatible with nail knots.
Good ! I should have added that a nail knot connection to the leader can result in the coating pulling right off the backing with the loss of connection. (This can also happen with the old "slime lines".) For this reason, we used eithera loop-to-loop connection or an Albright Special.) G.
16.)
Some expert dry fly
troIt'sut fisherman have taught that the attachment between the fly line and the
butt section of the leader should seal the end of the line so that the core
isn't exposed. Why ?
It was thought
that water would ?wick? up the core and cause the line to
sink.
17.)
Name the CORE
material used in this line : AIRFLO Tropical Saltwater Ridge Line, Polyfuse
XT.
Proprietary low-stretch braid, designated ?Power Core?
It's a special unistrand ultra low stretch monofilament. (See attachment.) G.
18.)
Several years ago,
lines entered the market which were called, "SLIME LINES". What was used
for the core material of these lines ?
Single strand
monofilament nylon
19)
Can you name one
annoying problem common to these lines ? (Hint: It was so bad that
the manufacturer offered to replace any line so
affected.)
They absorbed pigment from coloured backing.
Yes, they did.... however, the biggest problem was "inch worming" as the coating separated from the core. G.
20.) Back in the late 30's, I had a silk line labelled, "GBG".
a. What material was used for the core ? Braided or plaited silk
b. What was meant by the label, "GBG" ? Equivalent to DT7F if a floater or DT9S if a
sinker
21.) What material do fly line manufacturers add to the core of sinking lines to make them sink faster ? Nothing. Tungsten is added to the coating
As far as I could find out, this is true. I did call attention to the use of lead core lines as shooting heads. G.
22.) What is the approximate tensile strength of the core of the average line designed for trout fishing ? At least 20lbs breaking strain
23.) New lines designed for big game salt water fishing have cores with what approximate tensile strength ? Over 40 lbs breaking strain
24.) Flip Pallot, Lefty Kreh, Tony Heeb and Chico Fernandez used to make their own fly lines for salt water fly fishing back in the late 50's because they found the marketed lines available were not satisfactory. Flip wrote about it. What was the core material ? Don?t know.
Check the
attachment. G.
25.) (We'll throw in a "gimme") What can we read to find much of this information on fly line cores ? Bruce Richards? book ?Modern Fly Lines?
26.) (Toughest question of all !) Where can we find a copy ? Bob Rumpf would be the first person I?d call.
Have fun with these !
Gordy
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From Lou Bruno. Also a good score. (Brief comments in his text by me in black italics .... G.
QUIZ : These questions get more
difficult as we go from 1.) to 26.) Do the best you can. I
will be amazed if anyone gets them all right !
1.) Briefly describe the CORE of a fly
line.
Part of the fly
line that receives a finish coat. The core along with the finish coat can be
made of different material that contribute to the fly lines tensile strength,
stiffness,memory,durability and diameter.
2.) List as many core materials used in the manufacture of fly lines as you can. Horsehair, Nylon, Polyster, Kevlar, Lead, Copper and Tungstan. With the Nylon and Polyster core types their is Braided Multifilament Nylon, Braided Monofilament Nylon, Single Strand Monofilament, Braided Multifilament Polyster.
Technically, you are correct. On an exam, I would omit lead and tungsten although these may be added. Copper and Brass was briefly used as cores within braided silk lines for a brief period of time near the end of the 19th century. G.
3.) What core is most commonly used lines
designed for trout fishing ? Nylon (Braided Multifilament
Nylon)
4.) Grade the main properties of
this core using with respect to:
a. Stretch .......... (High or Low) High
b.
Flexibility.........(Great or Limited) Great
c. Tensile strength.... (Adequate or Gr,eat) Adequate
d. Bond to coating .....( Good or Poor) Good
5.) What core is most often used for
lines designed for use in salt water ? Nylon ? Braided Monofilament
Nylon
6.) Grade this core as you did in
question 4.)
Stretch?High,
Flexibility?Great, Tensile Strength?Great, Bond to
coating?Good.
7.) Can you think of another core
material used for both fresh and saltwater lines ? Lead or Tungstan.
8.) Is Dacron a popular core material
for fly lines ?
No, limited
stretch.
9.) What core material is usually
used for fly lines which are clear or transluscent ? Single Strand
Monofiliament
10.) For distance tournament casting,
are cores used which are stretchy or of limited stretchability
?
Limited Stretchability
11.) Is the stiffness of a fly line
dependant strictly upon that of its core... or does the coating also contribute
to this property ? The coating does contribute to this
property.
12.) What core material is usually
used for lines designed for fishing in
cold
salt water. Braided Multifilament
Nylon
13.) Years ago, a line was designed and marketed with a core made of Kevlar. There were problems with it. The bond between the coating and the core was poor and the Kevlar core would fracture after lots of casting at which point the line would literally come apart in mid air. Can you name this line ? No?did Hardy manufacture it?
Check the answer and comments in the attachment. G.
14.) What is meant by the term, "INCH WORMING". Guessing?a retrieval method.
Not a bad
guess..... check out the attachment.
G.
15.) Fly line designers have had difficulty with fly lines made with gel-spun cores. Can you tell us what those problems were ? Stiffness, limited stretch.
They did have very limited stretch. They were not stiff, however. Check the attachment for the primary answer. G.
16.) Some expert dry fly trout fisherman
have taught that the attachment between the fly line and the butt section of the
leader should seal the end of the line so that the core isn't exposed. Why
?
Water proof and
to secure the leader to fly line.
17.) Name the CORE material used in this line : AIRFLO Tropical Saltwater Ridge Line, Polyfuse XT. Braided multifilament nylon
Few got that one right. Check the attachment. G.
18.) Several years ago, lines entered
the market which were called, "SLIME LINES". What was used for the core
material of these lines ? Single Strand
Monofilament
19) Can you name one annoying problem common to these lines ? (Hint: It was so bad that the manufacturer offered to replace any line so affected.) The line would not stretch? monocore spaghetti
Spaghetti is not far off. They did stretch a lot, however. Check the answer in the attachment. G.
20.) Back in the late 30's, I had a
silk line labelled, "GBG".
a. What material was used for the core ? Nylon
b. What was meant by the label, "GBG" ? The taper?DT.
Check the
attachment. G.
21.) What material do fly line manufacturers add to the core of sinking lines to make them sink faster ? Tungsten
Read the question carefully..... note, I said CORE. G.
22.) What is the approximate tensile
strength of the core of the average line designed for trout fishing
?
20lbs
23.) New lines designed for big game salt water fishing have cores with what approximate tensile strength ? 50lbs
Some of the new big game saltwater lines may have cores which test at about 50 lbs. ! G.
24.) Flip Pallot, Lefty Kreh, Tony Heeb and Chico Fernandez used to make their own fly lines for salt water fly fishing back in the late 50's because they found the marketed lines available were not satisfactory. Flip wrote about it. What was the core material ? Guess? Single Strand Monofilament.
Yes
! G.
25.) (We'll throw in a "gimme")
What can we read to find much of this information on fly line cores
?
Modern Fly Lines
by Bruce Richards
26.) (Toughest question of all !)
Where can we find a copy ? Shop around on
line.
Have fun with these
!
Gordy
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Here are answers from Bill Hoot, who also did well. I'll show just a few of his answers with an eye to what I think should have been used on an oral exam. I'll change what may not have been needed (in the interest of exam brevity) to italics G.:-
Quiz answers from Bill Hoot
1.) Briefly describe the CORE of a fly line. The CORE is the central strands or strand material of a fly line, to which the coating is externally applied.
2.) List as many core materials used in the manufacture of fly lines as you can. Braided multi-filament nylon, Dacron or braided multi-filament polyester, braided monofilament nylon, Kevlar or Aramid fiber, single-strand monofilament, silk, woven horse-hair [ in the past]
3.) What core is most commonly used lines designed for trout fishing ? braided multi-filament nylon
4.) Grade the main properties of this core using with respect to:
a. Stretch .......... High
b. Flexibility.........Great
c. Tensile strength.... Adequate
d. Bond to coating ..... Good
5.) What core is most often used for lines designed for use in salt water ? For hot tropical climates, braided monofilament nylon. However these lines are rather stiff with excessive memory and kinking for cold-water applications such as stripers, bluefish, or salmon.
6.) Grade this core as you did in question 4.) Medium stretch. Less flexibility as compared with braided multi-filament nylon, but certainly more than Kevlar, which has no stretch. Adequate tensile strength, probably slightly more than multi-filament nylon. Fair bond to coating.
7.) Can you think of another core material used for both fresh and saltwater lines ? Single-strand monofilament ["sljme lines"], and probably also the ever-popular braided multi-filament nylon.
8.) Is Dacron a popular core material for fly lines ? No, except for tournament distance casting
9.) What core material is usually used for fly lines which are clear or transluscent ? Single-strand monofilament.
10.) For distance tournament casting, are cores used which are stretchy or of limited stretchability ? Limited stretchability, such as Dacron.
11.) Is the stiffness of a fly line dependant strictly upon that of its core... or does the coating also contribute to this property ? The coating also contributes to stiffness. For example, braided monofilament by itself is stretchy, and PVC coating is stretchy, but when PVC coating is applied to a braided monofilament core, it "welds" to the core and becomes relatively stiff or with more memory.
12.) What core material is usually used for lines designed for fishing in cold salt water. I am guessing braided multi-filament nylon usually, though perhaps Dacron might be OK.
13.) Years ago, a line was designed and marketed with a core made of Kevlar. There were problems with it. The bond between the coating and the core was poor and the Kevlar core would fracture after lots of casting at which point the line would literally come apart in mid air. Can you name this line ? AIRFLO made it.
14.) What is meant by the term, "INCH WORMING".
15.) Fly line designers have had difficulty with fly lines made with gel-spun cores. Can you tell us what those problems were ? Excessive memory and lack of stretch.
16.) Some expert dry fly trout fisherman have taught that the attachment between the fly line and the butt section of the leader should seal the end of the line so that the core isn't exposed. Why ? To decrease "sink" of the tip of the fly line. This may help mending the line.
Attachment:
Fly Line Issues.doc
Description: Binary data