Here is something to think about. First, measure the TP and PR of your rod. Then substact the TP value from the PR value and call it the "X" Factor. This is a measure of the "Xperience" or "Xpertise" required by the caster in order to get all the performance out of a rod that the designer put into it. On the the market today, I have measured and found so called
Forum: rodboard

Dennis, Not being or claiming to be a physicist, I'm afraid any critique of the physics principles involved in what you have posted would be presumptuous on my part. You also noted being quite chuffed about its accuracy and that your data acquisition methodology had negligible errors. Is is indeed rather surprising that one can obtain good information rather easily, That is why Lord Kelvin
Forum: rodboard

Denis Brown Wrote: ------------------------------------------------------- "My observations of built rods vs blank data in actual fishing use were somewhat different to yours in that I identified significant performance differences dependent on the build. ie........quantified differences in weight, inertial effects, frequency, & line flow in guides allowing something significant was
Forum: rodboard

Dennis, You asked, “would you like to contribute in open forum your engineering basis for your assumption & statement in the description of CCS that guides have little effect on the characteristics of the completed rod relative to those of the blank used, and some numbers for the relative significance of guide separation & guide design on rod deflection?” My answer is that I woul
Forum: rodboard

Dennis, At your request, I will open a new thread to continue discussing your previous concerns. However, I shall respond to your request for numbers here. Undoubtedly, my response will not satisfy you, but that is life. As an analytical chemist, I have spent over 50 years generating numbers for engineers and the like. This has taught me to first to ask what they are going to do with the numb
Forum: rodboard

Bobby, The first fact is, you obviously have not read the article on the URRS. I suggest you do so, as it covers precisely the points of your objection by also measuring TP (Tip Power) and PR (Power Reservoir or butt power). The second fact is, there is no evidence you have ever read the article on the BIG (Bending Index Graph) Picture which allows one to compare rods on an inch by inch basis.
Forum: rodboard

Why guess? Use the URRS and all your questions can be answered.
Forum: rodboard

The ERN, TP. and PR scales run from zero to 200. See the RodMaker article on the URRS (Universal Rod Rating System. The scales are linear within each of the designated limits.
Forum: rodboard

Use US cents minted post 1996. One cent = 2.5 grams
Forum: rodboard

As Rogerio stated, the feel of the rod will change. The more weight you put at the tip, the more you will lower the frequency of the rod and it will feel "less crisp". Whether that is a good thing or a bad thing is strictly a function of how YOU want YOUR ROD to feel.
Forum: rodboard

Tim, I believe I wrote a piece for RodMaker several years ago about your concern. Perhaps Tom can supply a reference. It was called "¢ / Centsitivity" and is a measure of the sensitivity of a rod tip to observable deformation, i.e., The mass required to deflect a horizontally held rod tip a distance of two inches or 50 mm. Value can be expressed in units of ¢ or grams.
Forum: rodboard

Tim, One can't describe everything with a single number, assuming you don't accept "42" as the answer. There is much more to describing a rod than just its ERN. You should remember the CCS was originally developed for trout rods (ERN=6 or less). Subsequently, due to its usefulness, it has been expanded under the form of the URRS (Universal Rod Rating System) to cover rods of all t
Forum: rodboard

I believe I have followed most of this thread. However I may be wrong and would appreciate it if someone would correct me. Is the following a reasonable summary, or did I miss the whole point? Its all about frequency. Given two "identical" rod blanks, the finished rod which feels better or can cast farther for most anglers is that one which exhibits the higher frequency. Reduction of
Forum: rodboard

Eugene, you wrote, " The target is to create a fishing rod that most accurately matches the blank action prior to our craftmanship. " I am somewhat confused. Could you please define exactly what you mean by " blank action"? To my understanding, "Action" is where a rod or blank bends and is essentially unchanged when a rod is finished.
Forum: rodboard

Bob, "I melted the tip section, right in the middle. Guides are fine. Now I have to order a new tip section. Which means I have to send the whole rod back so they can match me a new top." ------------ It is interesting that you have to send the whole rod back in order to match a new tip. I would think this speaks volumes about the precision and quality control of that manufacture
Forum: rodboard

Emory, I am not arguing your point. I agree sensitivity is directly related to frequency and "softness" is inversely related to both. The angler can't have both (maximum sensitivity and softness) in the same rod. He must either make a choice or accept a compromise. My point is, while in theory, a rigid rod is more sensitive, a flexible rod is a better fishing tool. Therefore, we fi
Forum: rodboard

Tom, Have you had a chance to read those articles on the "Feel" Fixer® I left with you. Placing extra weight (via additional guides) changes the frequency of ones "fishing outfit". I don't know how one measures "efficiency", but that extra weight surely changes the feel, and that, I believe, is more important to the "average" angler.
Forum: rodboard

Let me repeat my answer to a previous post:. "Look up my article in RodMaker Volume 10, issue 4. This describes my URRS ( Universal Rod Rating System) which is applicable to all rods of any type. In it, the table of ERN, TP, and RP values have been defined up to 200. " The table also provides the direct conversion to "Lure Weigh" Gary is correct. Your 35 cents corre
Forum: rodboard

Look up my article in RodMaker Volume 10, issue 4. This describes my URRS ( Universal Rod Rating System) which is applicable to all rods of any type. In it, the table of ERN, TP, and RP values have been defined up to 200. Your 229 cents corresponds to an ERN of just a shade under 20 (ERN 20 = 231 cents). For those using other weights, 1 cent weighs 2.5 grams.
Forum: rodboard

If you really want to play with spine, try the following. 1. Mount your blank- essentially horizontal with the butt firmly held and mark its position (top). 2. Attach a weight to the tip so that when you let it bob up and down, you can easily determine its frequency. (i.e. count the oscillations per unit of time—30 seconds.) 3. Repeat the measurement at least 18 times, making sure to rotate
Forum: rodboard

"If the specs are identical there is no difference." That depends on what the specs specify. If the URRS values are identical, the blanks will be very close. The most important values are TP and PR.
Forum: rodboard

What it appears you are looking for is a rod which the URRS would probably describe as a 5:2:8. I have no idea what the maker of such a blank might call it in terms of "weight". However, if you specify it in terms of CCS or URRS, you should be able get what you want. This will be a fast action ERN=5 rod with which you can cast light lines by using just the tip. It is basically a "
Forum: rodboard

Come to High Point this weekend. If all goes well, I will be introducing a New Era in fly fishing. It's called Frequency Modulation. Look for Dr. Hanneman's magic "Feel" Fixer®
Forum: rodboard

Chase, You have posted a notice here to be read by experienced rod builders. I believe it would be advantageous to your sales if you were to simply post the CCS values for these blanks. This should not involve more than a few minutes of your time and would answer most of the questions potential buyers might ask.
Forum: rodboard

Chase, You have posted a notice here to be read by experienced rod builders. I believe it would be advantageous to your sales if you were to simply post the CCS values for these blanks. This should not involve more than a few minutes of your time and would answer most of the questions potential buyers might ask.
Forum: rodboard

Bob, Can you tell us what the CCS, or should I say URRS values for these sticks are? At least we now have a tool for measuring their properties and we can objectively compare them to their competitors' and see where, how, and why they are better, if they are. If they are planning on making a line of fly rods, I believe they had better have deep pockets. On 1/2/06 Rob Ketley wrote a note
Forum: rodboard

Herb, An interesting situation, You say, "The CCS system showed that those two blanks were identical." Does mean the ERN and AA were identical, or were the TP and PR also identical? It would be interesting to know what results you got on the finished rods—also the CCF. The URRS uses three terms, ERN, TP, and PR to describe a rod in less precise terms. I wonder if the two rods still
Forum: rodboard

"Nice" and "feels good" are certainly complimentary, but can anyone tell us what kind of ERN and AA values one can expect ?
Forum: rodboard

Tom, What happened to centsitivity?
Forum: rodboard

Rich, You wrote: "In a nutshell - I think RF may have some potential as a blank comparison tool - basically doing the same thing Common Cents does, but in a different way. If I had the money, I'd buy a ton of blanks and an optical RF analyzer and go to town." Here is something to think about. While with an optical RF analyzer you can measure the frequency of a rod blank, whic
Forum: rodboard