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"An
Affair with Arundinaria Amabilis" I am an addict. I have an unrequited thirst and desire for all things bamboo. I want rods, bobbins, and even wind chimes. I believe there are several underlying misconceptions concerning bamboo and especially bamboo fly rods and that is what this article is intended to deal with. I will also attempt in my own way to give a brief history of other rod types and construction. I frequently hear the statement that fly rod construction is bamboo, sometimes referred to as cane or split cane, versus carbon fiber (graphite). Let’s deal with that right up front. The discussion is interesting but is certainly not an us versus them argument. Actually, there is no argument. One is not better than the other, merely different. End of discussion. Rods have been constructed of many different materials since man began angling. They have been made of greenheart, Calcutta and Tonkin cane, steel, fiberglass, graphite and carbon composite, and have contained many various additives. The type of construction has changed with the times and desires of the angling public. Greenheart fly rods were mainly a solid wood rod favored in the very early fishing stories of this country. It was still an available rod in many stores until the late 1920’s to early 1930’s. It is a very dense fibered wood with an appearance similar to walnut. The rods produced from greenheart are normally of a very full flexing action with a pronounced sway and slow, methodical timing. There is still the occasional greenheart rod made even today.
One of the first bamboo culms used for construction of fly rods was Calcutta
cane. Calcutta was the favored bamboo for rods constructed from the mid
1840’s until the early part of the twentieth century. The makers
of Calcutta cane rods may have been some of the most versatile and constructive
artisans of the early rod making era. Calcutta cane was frequently inhabited
by boring worms and also frequently straightened prior to import over
open fires which resorted in scorched areas on the cane and frequent burn
markings. Staggering of strips was more to produce a series of unmarked
sections for looks and strength than to determine the most aesthetically
pleasing and efficient node spacing concept. Then came the rods constructed of arundinaria amabilis, which is more commonly know as Tonkin Cane or Bamboo. Out of the several thousand varieties of this particular grass family, only Tonkin (sometimes called tea-stick bamboo by growers) has the strength and elasticity while still maintaining what is considered an acceptable weight after construction. Many assume that the bamboo is grown in the Gulf of Tonkin due to the name given this bamboo. The bamboo is actually grown in China’s Kwangtung Province between 1000 and 2000 feet above sea level. This plant grows to an amazing height in a very short period of time. The bamboo shoots grow from ground level to mature height in a few months. Only with age does it become thicker and more dense. (Sounds similar to our anatomy, doesn’t it?) After a period of two to four years the bamboo is harvested by cutting, stripped of leaves, scrubbed clean, and left to dry in the sun. The plant has been able to grow to such an amazing height and withstand winds and other natural hazards due to its tubular structure. This structure is interrupted from time to time throughout the length of the reed by internal membranes which happen at the same point as the external nodal ridges. Leaves also grow at the nodes. Connecting all the nodal areas are long, tough cellulose fibers held together by lignin. These are the “power fibers” talked about so enthusiastically by bamboo rod admirers. These are most dense (heaviest) at the outer layers under the enamel and least dense near the internal or pith side of the bamboo.
Why do fly rods have such strength whether constructed of bamboo, glass
or graphite? In engineering terms, having the greatest strength farthest
from the central axis is one of the main reasons. This is why bamboo makes
a very suitable mode of constructions for fly rods and also explains why
fiberglass and graphite rods are hollow. It is also why solid wood rods
have been gradually phased out over time as their greatest strength is
spread throughout the wood instead of concentrated in the outer areas
or even in one particular area which could then be formed into an outer
layer. |
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The author's hobby at rest. |
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on to some common misconceptions and theories on bamboo fly rods. |
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Pieces of Eight
The author has begun taking creation to the next level.
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You
cannot cast as far with a bamboo rod. Bunk! Maybe not if your name is
Rajeff or a one of the very few tournament casters that is able to get
the absolute ultimate out of a composite rod. In my opinion, 99% of fly
fishers are not in that category regardless of their skill level and the
thought that a particular taper or construction will make you a tournament
caster is ridiculous and perhaps a bit vain. Bamboo rods held all distance
records for a large number of years and there are many able fishers out
there that get all the distance they want or need from bamboo. Fly fishing
is not all about distance and to make it so is to trivialize and thereby
make minimal many of the most important attributes of our sport. How you fly fish can be determined by many different factors. Some, but not all of these are fly selection (wet, dry, nymph, streamers) size of water fished, line size and type, distance needed to effectively present the fly, fresh or salt water, and weather. Is one particular rod construction the optimal one for each of these variables? I would certainly think not. You certainly don’t take a Corvette on an off-road adventure any more than you see off road vehicles drag racing.
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