Here's a question from the November/December 2000 issue of RodMaker magazine:
"I am preparing to wrap a 7 and half foot 6-piece 4 weight fiberglass fly blank
and it has spigot ferrules. Will it be sufficient to wrap both sides of the ferrule
using the 1 and 1/2 x diameter rule? I have always used the tip-over-butt
ferrule and used that as a guide for ferrule wraps but this is my first time at
spigots. . . Andy . . .San Antonio, TX.
The main point for making a ferrule reinforcement wrap is to provide some
protection against split-out starting at the edge of the ferrule. For this
reason it is necessary to begin (or end) the wrap as near the edge of the
ferrule as necessary. I normally shoot for a wrap that extends to within 1mm
of the ferrule edge/s. I am not sure that there is any rule on how long the ferrule
wrap should be but I have made mine twice the length of the diameter, at the
ferrule opening, for many years and never had a problem. Some blank
makers recommend that a length that is 1.5 times the ferrule diameter as
being sufficient. Since the primary concern lies in reducing any chance
of a split-out at the edge a great amount of wrap length is simply not
necessary. Thus you're probably safe with the 1.5 diameter to length
formula.
On spigot ferrules, you will want to make these reinforcement wraps at
both the female and male ferrule edges, as the spigot, though fixed at
one end, penetrates both sections. ~ Tom Kirkman
Publishers note:
If you have any tips or techniques, send them
along! Help out your fellow rodmakers!
~ Publisher, FAOL
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