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Leader design for MCI Exam

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Thomas_E
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Leader design for MCI Exam

#11

Post by Thomas_E » Sat Feb 09, 2019 9:07 pm

Graeme H wrote:Not 1:1, but the leader must be lighter than the line by only a small amount. It must also have a similar stiffness. These two things together will help the loop transfer smoothly into the leader.
A similar stiffness is not important.

Tapered, furled leaders made from e.g. Dyneema are very limp and stretch excellently.

The right distribution of mass is important

Cheers,
Thomas

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Paul Arden
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Leader design for MCI Exam

#12

Post by Paul Arden » Sun Feb 10, 2019 7:18 am

Hi Lou,

It would be interesting to know the tip diameter of the flyline. I used a 5WT MED for my FFF exams. I can see why you might need a thicker butt section with a heavier fly line. Mind you if I’m going to putt a knot in the Leader anywhere near the end of the fly line then I’m just going to build the complete leader myself!

Cheers, Paul
It's an exploration; bring a flyrod.

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Lou Bruno
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Leader design for MCI Exam

#13

Post by Lou Bruno » Sun Feb 10, 2019 12:50 pm

Paul

Tip diameter of fly line 0.037 in.

Butt diameter of leader section I added to minimize the transition
from fly line tip to my leader, 0.029 in.

Butt section length I added 17 inches.

Knotless butt diameter of RIO leader 0.025 inches.

I do have one knot, joining the knotless leader to my 17 in new butt section.

BTW, I use a dial micrometer to measure my line diameters.

Cheers
Lou

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Paul Arden
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Leader design for MCI Exam

#14

Post by Paul Arden » Mon Feb 11, 2019 4:53 pm

Hi Lou,

Blimey, I can't do inches that small! It's weird 17 inches no problems, in fact tell me that in cm and I'll have to convert to inches! But 0.025 of an inch completely baffles me :D

I have a set of callipers in my kit; it's an essential item really.

Cheers, Paul
It's an exploration; bring a flyrod.

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Lou Bruno
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Leader design for MCI Exam

#15

Post by Lou Bruno » Mon Feb 11, 2019 11:12 pm

0.025 in = 0.0635cm
Lou

anjill
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Leader design for MCI Exam

#16

Post by anjill » Tue Feb 12, 2019 9:27 am

Hi Lou,

You might find the info here useful.

Regards,
Tony.

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Paul Arden
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Leader design for MCI Exam

#17

Post by Paul Arden » Tue Feb 12, 2019 10:02 am

Lou Bruno wrote:0.025 in = 0.0635cm
Lou
Thanks!! :cool:
It's an exploration; bring a flyrod.

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