Ferrule Concerns

By Tom Kirkman, (RodMaker Magazine)

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.

RodMaker Magazine

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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